Quick recall · 219 cards
Short MCQ-style retrieval prompts. Tap a card to reveal the answer.
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Scientific name of knol-khol?
A · Brassica oleracea var gongylodes
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Which cole crop is richest in antioxidants?
C · Sprouting broccoli
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Fruit of cauliflower is known as?
B · Curd
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The characteristic flavor of Cole crops is due to presence of?
A · Di methyl tri sulphate
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What is the botanical name of Brinjal?
C · Solanum melongena
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Which family does Brinjal belong to?
A · Solanaceae
Brinjal belongs to the Solanaceae family, also known as the nightshade family. This family includes solanaceous crops such as tomato, potato, chilli, and tobacco. Option A is correct.[1]
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Brinjal, Tobacco, Potato and Tomato are same due to:
A · A. All these plants belong to Solanaceae
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A stem vegetable is:
B · B. Knol-khol
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All Cole crops belongs to the family:
B · B. Brassicaceae
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Family of Cucumber crop?
B · B. Cucurbitaceae
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Origin of Cucumber?
B · B. India
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Chromosome number of Cucumber?
B · B. 2n=14
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Which of the following is/are root vegetables?
1. Radish
2. Carrot
3. Turnip
4. All of the above
D · All of the above
PYQ · 2018
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A rainy season vegetable is (a) Spinach (Palak) (b) Broccoli (c) Bottle gourd (d) Chenopodium
A · Spinach (Palak)
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Which vegetable is most commonly grown as a cool-season crop?
B · Lettuce
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What is the ideal temperature range for growing cool-season vegetables?
A · 10–15°C
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Which of the following is the correct botanical family for cole crops?
B · Brassicaceae
Cole crops belong to the family Brassicaceae, which includes vegetables like cabbage, cauliflower, and broccoli.
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What is the scientific name of cauliflower?
A · Brassica oleracea var. botrytis
Cauliflower is scientifically classified as Brassica oleracea var. botrytis.
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Which cole crop is scientifically known as Brassica oleracea var. capitata?
B · Cabbage
Cabbage is classified as Brassica oleracea var. capitata.
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Which of the following cole crops is classified as Brassica oleracea var. gongylodes?
A · Kohlrabi
Kohlrabi is scientifically known as Brassica oleracea var. gongylodes.
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Which cole crop is considered richest in antioxidants such as vitamin C and glucosinolates?
B · Broccoli
Broccoli is known to have high levels of antioxidants including vitamin C and glucosinolates.
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Which antioxidant compound predominantly found in cole crops is linked to cancer prevention?
B · Glucosinolates
Glucosinolates are sulfur-containing compounds in cole crops that have been linked to cancer prevention.
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Which vitamin is most abundant in cole crops and contributes significantly to their antioxidant property?
C · Vitamin C
Vitamin C is abundant in cole crops and is a key antioxidant nutrient.
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Which of the following statements about the nutritional benefits of cole crops is correct?
B · They contain high levels of glucosinolates and vitamin C, which have health benefits
Cole crops are rich in glucosinolates and vitamin C, both of which contribute to their antioxidant and health-promoting properties.
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Which part of the cauliflower plant is typically consumed as a vegetable?
C · Immature flower head
The edible part of cauliflower is the immature flower head, commonly called the curd.
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In cabbage, which morphological part is consumed as a vegetable?
A · Leafy head
The leafy head of cabbage is the edible part, consisting of tightly packed leaves.
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Which morphological feature distinguishes broccoli from cauliflower?
A · Broccoli has a green edible flower head, cauliflower has a white one
Broccoli is characterized by its green edible flower heads, while cauliflower has white flower heads.
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Which part of kohlrabi is consumed as a vegetable?
A · Swollen stem
Kohlrabi is consumed for its swollen stem, which is edible and has a crisp texture.
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Which environmental condition is most critical for optimum growth of cole crops?
B · Cool temperature (15-20°C)
Cole crops grow best in cool temperatures ranging from 15 to 20°C, which favor head formation and quality.
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Which of the following is a recommended soil pH range for cultivating cole crops?
B · 6.0 to 7.5
Cole crops prefer a slightly acidic to neutral soil pH ranging from 6.0 to 7.5 for optimal nutrient availability.
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Which cultivation practice helps in preventing premature flowering (bolting) in cole crops?
B · Maintaining cool growing temperatures
Maintaining cool temperatures delays bolting and promotes proper head formation in cole crops.
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Which of the following is a common cultural practice to improve soil fertility for cole crop cultivation?
B · Crop rotation with legumes
Crop rotation with legumes enriches soil nitrogen and reduces pest buildup, benefiting cole crops.
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Which pest is most commonly associated with damage to cole crops by feeding on leaves and causing 'shot-hole' symptoms?
A · Diamondback moth
The diamondback moth larvae feed on cole crop leaves, creating characteristic holes known as 'shot-hole' damage.
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Which disease of cole crops is characterized by yellow V-shaped lesions on leaf margins and is caused by a fungal pathogen?
A · Black rot
Black rot causes yellow V-shaped lesions on leaf margins and is a serious bacterial disease of cole crops.
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Which pest transmits the black rot disease in cole crops?
A · Aphids
Aphids act as vectors transmitting black rot bacteria among cole crops.
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Which of the following is an effective post-harvest practice to extend the shelf life of cole crops like cabbage and cauliflower?
B · Storage at low temperature (0-4°C) with high humidity
Low temperature storage with high humidity reduces respiration and moisture loss, extending shelf life.
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Which of the following post-harvest treatments helps in reducing yellowing and decay in stored cole crops?
B · Application of fungicides and proper ventilation
Applying fungicides and maintaining good ventilation helps reduce decay and yellowing during storage.
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Which cole crop variety is known for its early maturity and high yield potential?
A · Pusa Snowball (Cauliflower)
Pusa Snowball is a popular early maturing cauliflower variety with high yield.
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Which of the following cole crops has significant economic importance due to its use as a fresh vegetable and processed product worldwide?
C · Cabbage
Cabbage has wide economic importance globally as a fresh vegetable and in processed forms like sauerkraut.
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Which of the following cole crop varieties is considered a hybrid and offers resistance to common diseases and improved yield?
A · Green Magic (Broccoli hybrid)
Green Magic is a broccoli hybrid variety bred for disease resistance and higher yield.
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Which of the following botanical features is characteristic of cole crops?
C · Flower parts in multiples of four or five
Cole crops belong to the Brassicaceae family, which typically have flower parts in multiples of four or five.
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Which plant part is primarily consumed in cabbage, a typical cole crop?
C · Leaf
Cabbage is consumed mainly for its leafy head, which is a compact cluster of leaves.
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Which of the following is a botanical trait that distinguishes cauliflower from broccoli?
A · Cauliflower forms a white curd, broccoli forms green flower heads
Cauliflower produces a white edible curd formed by undeveloped flower buds, while broccoli produces green flower heads.
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Which anatomical feature is most prominent in cole crops that supports their cold tolerance?
B · High concentration of glucosinolates
Glucosinolates are sulfur-containing compounds in cole crops that contribute to pest resistance and cold tolerance.
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Which variety of cabbage is characterized by elongated heads and is commonly grown in Asia?
C · Chinese cabbage (Napa cabbage)
Chinese cabbage, also known as Napa cabbage, has elongated heads and is widely cultivated in Asia.
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Which cole crop variety is identified by its crinkled, wrinkled leaves and milder flavor?
B · Savoy cabbage
Savoy cabbage is known for its crinkled, wrinkled leaves and milder taste compared to other cabbages.
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Which of the following cole crops is primarily identified by its swollen stem used as an edible vegetable?
B · Kohlrabi
Kohlrabi is known for its swollen, edible stem which resembles a turnip.
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Which cole crop variety is characterized by small, compact buds growing along the stem?
A · Brussels sprouts
Brussels sprouts produce small, cabbage-like buds along the stem, which are harvested as vegetables.
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Which cole crop variety is most suitable for identification by its purple pigmentation in leaves or heads?
A · Red cabbage
Red cabbage is distinguished by its purple or reddish pigmentation in leaves or heads.
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Which nutrient is cole crops especially rich in, contributing to their health benefits?
A · Vitamin C
Cole crops like cabbage and broccoli are rich sources of Vitamin C, an important antioxidant.
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Economically, cole crops are important because they:
B · Have a short growing period and high market demand
Cole crops have relatively short growing periods and high consumer demand, making them economically valuable.
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Which mineral is notably abundant in cole crops, aiding in bone health and metabolic functions?
C · Calcium
Cole crops contain significant amounts of calcium, important for bone health and metabolism.
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Which of the following is a critical soil requirement for optimal growth of cole crops?
B · Well-drained loamy soil with pH 6.0 to 7.5
Cole crops grow best in well-drained loamy soils with a neutral to slightly acidic pH of 6.0 to 7.5.
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Which cultural practice is essential to prevent bolting in cole crops during cultivation?
B · Maintaining cool temperatures and proper spacing
Maintaining cool temperatures and proper plant spacing helps prevent premature flowering or bolting in cole crops.
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Which fertilizer application is most beneficial during the vegetative growth phase of cole crops?
B · High nitrogen fertilizer
Nitrogen promotes leafy vegetative growth, which is critical during early development of cole crops.
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Which irrigation method is most suitable for cole crops to reduce disease incidence?
C · Drip irrigation
Drip irrigation minimizes leaf wetness, reducing disease incidence in cole crops.
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Which insect pest is a major threat to cole crops, causing characteristic holes in leaves?
B · Diamondback moth larvae
Diamondback moth larvae feed on cole crop leaves, causing holes and significant damage.
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Which fungal disease causes black lesions on cole crop leaves and can be managed by crop rotation?
B · Black rot
Black rot causes black lesions on leaves and is controlled by crop rotation and sanitation.
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Which biological control agent is effective against aphids in cole crop cultivation?
A · Ladybird beetles (Coccinellidae)
Ladybird beetles are natural predators of aphids and help control their populations biologically.
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Which post-harvest practice helps extend the shelf life of cole crops like cabbage and broccoli?
B · Storing in high humidity and low temperature (0-4°C)
Storing cole crops at low temperatures with high humidity slows down respiration and extends shelf life.
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At what stage is cauliflower typically harvested to ensure optimal quality and marketability?
B · When the curd is compact, white, and before flowering
Cauliflower is harvested when the curd is compact and white, before flower buds open to maintain quality.
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Which of the following is a characteristic feature of solanaceous crops like tomato and brinjal?
C · Presence of alkaloids and alternate leaves
Solanaceous crops typically have alternate leaves and contain alkaloids, which are characteristic biochemical compounds of this family.
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The fruit type commonly produced by tomato plants is classified as:
A · Berry
Tomato produces a fleshy fruit classified botanically as a berry.
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Which botanical feature distinguishes brinjal from tomato plants?
B · Brinjal has spiny stems, tomato does not
Brinjal plants often have spiny stems and leaves, which is a distinguishing feature from tomato plants.
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Which of the following tomato varieties is known for its determinate growth habit?
B · Roma VF
Roma VF is a determinate tomato variety, meaning it has a bushy growth habit and fruits mature simultaneously.
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Which hybrid brinjal variety is known for its high yield and resistance to bacterial wilt?
A · Arka Shirish
Arka Shirish is a hybrid brinjal variety bred for high yield and resistance to bacterial wilt disease.
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Which of the following is a characteristic of hybrid tomato varieties compared to open-pollinated ones?
B · Greater uniformity and disease resistance
Hybrid tomato varieties generally show greater uniformity, higher yield, and better disease resistance compared to open-pollinated varieties.
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What is the ideal soil pH range for growing tomato and brinjal crops?
C · 6.0 to 7.5
Tomato and brinjal thrive best in soils with pH ranging from 6.0 to 7.5, which is slightly acidic to neutral.
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Which climatic condition is most suitable for tomato cultivation?
C · Moderate temperature 20°C to 27°C with low humidity
Tomato grows best in moderate temperatures between 20°C to 27°C with low humidity to avoid diseases.
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Which soil type is preferred for brinjal cultivation to ensure good drainage and root development?
B · Sandy loam soil
Sandy loam soil is preferred for brinjal as it provides good drainage and aeration essential for root growth.
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Which propagation method is commonly used for tomato cultivation?
A · Seed sowing
Tomato is primarily propagated by seed sowing, which is the most common and efficient method.
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What is the recommended spacing for planting brinjal seedlings in a field for optimum growth?
B · 45 cm × 45 cm
A spacing of 45 cm × 45 cm is recommended for brinjal to allow adequate air circulation and growth.
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Which planting technique helps in early crop establishment and uniform growth in tomato cultivation?
B · Raised bed transplanting
Raised bed transplanting improves soil aeration and drainage, leading to better seedling establishment and uniform growth.
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Which nutrient is most critical during the fruiting stage of tomato and brinjal crops?
C · Potassium
Potassium is essential during fruiting as it improves fruit quality, size, and resistance to diseases.
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What is the recommended NPK ratio for fertilizing tomato crops during the vegetative growth stage?
B · 20:10:10
A higher nitrogen ratio such as 20:10:10 supports vegetative growth in tomato plants.
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Which micronutrient deficiency in tomato plants causes 'blossom end rot'?
B · Calcium
Calcium deficiency leads to blossom end rot, a common physiological disorder in tomato fruits.
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Which irrigation method is most efficient for water management in tomato cultivation to reduce water loss?
B · Drip irrigation
Drip irrigation delivers water directly to the root zone, minimizing evaporation and runoff, thus improving water use efficiency.
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What is the ideal frequency of irrigation for brinjal during peak flowering and fruiting stages?
C · Every 3-4 days depending on soil moisture
Irrigation every 3-4 days during flowering and fruiting ensures adequate moisture without waterlogging.
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Which irrigation scheduling technique uses soil moisture sensors to optimize water application in solanaceous crops?
B · Soil moisture-based irrigation
Soil moisture-based irrigation uses sensors to apply water only when the soil moisture drops below a threshold, optimizing water use.
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Which pest is commonly known as the 'fruit borer' in brinjal crops?
B · Leucinodes orbonalis
Leucinodes orbonalis is the brinjal fruit borer, causing significant damage to fruits.
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Which fungal disease causes 'early blight' in tomato plants?
A · Alternaria solani
Alternaria solani is the pathogen responsible for early blight in tomato, characterized by leaf spots and fruit rot.
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Which integrated pest management (IPM) practice is effective against tomato whitefly (Bemisia tabaci)?
C · Introduction of natural enemies and use of yellow sticky traps
IPM for whitefly includes biological control by natural enemies and monitoring with yellow sticky traps to reduce chemical use.
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Which of the following is a recommended harvesting indicator for tomatoes?
B · Fruit showing first signs of color break
Harvesting tomatoes at the color break stage ensures better shelf life and quality.
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Which post-harvest practice helps in extending the shelf life of brinjal fruits?
B · Washing fruits with water and drying before storage
Washing and drying fruits before storage reduces microbial load and delays spoilage.
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Which of the following is a suitable method for grading tomato fruits post-harvest?
A · Based on fruit color, size, and firmness
Tomato fruits are graded according to color, size, and firmness to ensure uniform quality for market.
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Which of the following is a characteristic feature of the tomato plant (Solanum lycopersicum)?
B · It produces berries as fruit
Tomato plants produce berries as their fruit type, which is a typical botanical characteristic of solanaceous crops.
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Brinjal (Solanum melongena) typically exhibits which type of root system?
C · Taproot system
Brinjal plants have a taproot system, which is common among solanaceous crops.
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Which floral characteristic is common to both tomato and brinjal plants?
C · Actinomorphic flowers with radial symmetry
Both tomato and brinjal have actinomorphic flowers, meaning they exhibit radial symmetry.
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Which tomato variety is known for its determinate growth habit and early maturity?
B · Pusa Early Dwarf
Pusa Early Dwarf is a determinate variety known for early maturity, suitable for short-duration cultivation.
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Which hybrid brinjal variety is widely recommended for its high yield and disease resistance?
A · Arka Shirish
Arka Shirish is a hybrid brinjal variety known for high yield and resistance to major diseases.
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What is the primary advantage of using hybrid tomato varieties over traditional varieties?
B · Uniform fruit size and higher yield
Hybrid tomato varieties generally provide uniform fruit size and higher yields compared to traditional varieties.
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What is the recommended spacing for planting tomato crops in a high-density system?
B · 45 cm × 45 cm
A spacing of 45 cm × 45 cm is commonly recommended for high-density tomato planting to optimize yield.
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Which land preparation practice is essential before transplanting brinjal seedlings?
A · Deep ploughing followed by leveling
Deep ploughing followed by leveling ensures proper soil aeration and moisture retention for brinjal seedlings.
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Which planting method is most suitable for tomato cultivation in regions with erratic rainfall?
B · Transplanting seedlings raised in nursery
Transplanting seedlings raised in nurseries helps ensure better establishment and survival under erratic rainfall conditions.
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Which of the following is a recommended nitrogen fertilizer dose for tomato cultivation per hectare?
B · 100 kg N/ha
A nitrogen dose of about 100 kg per hectare is generally recommended for tomato crops to support optimal growth.
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What is the role of potassium in tomato crop fertilization?
B · Enhances fruit size, color, and quality
Potassium is essential for improving fruit size, color, and overall quality in tomato crops.
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Which fertilization practice is best suited to minimize nutrient losses in brinjal cultivation?
B · Split application of nitrogen during crop growth
Split application of nitrogen helps reduce losses and ensures continuous nutrient availability during crop growth.
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What is the ideal irrigation frequency for tomato crops during fruiting stage under drip irrigation?
A · Once every 2 days
Irrigating once every 2 days during fruiting under drip irrigation maintains optimal soil moisture for tomato development.
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Which irrigation method is most water-efficient for solanaceous crops grown in semi-arid regions?
B · Drip irrigation
Drip irrigation delivers water directly to the root zone, minimizing wastage and improving water use efficiency.
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Which of the following irrigation schedules is recommended to prevent blossom end rot in tomato plants?
A · Frequent shallow irrigations to maintain uniform soil moisture
Maintaining uniform soil moisture through frequent shallow irrigations helps prevent calcium deficiency disorders like blossom end rot.
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Which pest is the primary insect pest of brinjal causing leaf damage and fruit scarring?
A · Brinjal shoot and fruit borer (Leucinodes orbonalis)
The brinjal shoot and fruit borer is the major pest causing significant damage to leaves and fruits.
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Which fungal disease causes leaf spots with concentric rings on tomato plants?
A · Early blight (Alternaria solani)
Early blight caused by Alternaria solani produces characteristic leaf spots with concentric rings.
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Which integrated pest management (IPM) practice is effective against tomato fruit borer?
A · Use of pheromone traps and timely application of biopesticides
IPM includes pheromone traps and biopesticides to control fruit borer sustainably and reduce chemical use.
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Which post-harvest practice helps extend the shelf life of tomatoes during storage?
A · Storing at 0–4°C with high humidity
Low temperature storage (0–4°C) with high humidity slows down ripening and decay, extending shelf life.
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What is the recommended stage for harvesting brinjal fruits for best market quality?
C · Half-mature fruits with glossy skin
Brinjal fruits are best harvested at half-mature stage when the skin is glossy and firm for better market quality.
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Which of the following is a major economic use of tomato crops worldwide?
B · Raw consumption and processing into sauces and pastes
Tomatoes are widely used for fresh consumption and processing into products like sauces, pastes, and ketchup.
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Which of the following is a common botanical characteristic of cucurbitaceous crops?
A · They have compound leaves and tendrils
Cucurbitaceous crops typically have compound leaves and tendrils which help them climb and spread.
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The flowers of cucurbitaceous crops are generally:
B · Unisexual and monoecious
Most cucurbitaceous crops have unisexual flowers and are monoecious, meaning male and female flowers occur on the same plant.
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Which of the following is true about the stem of cucurbitaceous crops?
B · They have herbaceous and climbing stems with tendrils
Cucurbitaceous crops have herbaceous stems that climb or spread using tendrils.
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What is the scientific name of bottle gourd?
B · Lagenaria siceraria
Bottle gourd is scientifically known as Lagenaria siceraria.
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Which cucurbitaceous crop is scientifically named Cucumis melo?
B · Muskmelon
Muskmelon is scientifically named Cucumis melo.
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Which of the following crops belongs to the genus Cucurbita?
B · Pumpkin
Pumpkin belongs to the genus Cucurbita.
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Which of the following is the correct scientific name of bitter gourd?
A · Momordica charantia
Bitter gourd is scientifically known as Momordica charantia.
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Which climate is most suitable for the cultivation of cucurbitaceous crops?
B · Warm and humid climate
Cucurbitaceous crops generally require warm and humid climate for optimum growth.
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What type of soil is best suited for cucurbitaceous crops?
B · Sandy loam soil with good drainage
Sandy loam soil with good drainage is ideal for cucurbitaceous crops to avoid root rot and ensure healthy growth.
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Which of the following temperature ranges is ideal for the germination of cucurbitaceous seeds?
B · 20°C to 30°C
Cucurbitaceous seeds germinate best between 20°C and 30°C.
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Which propagation method is most commonly used for cucurbitaceous crops?
B · Seed propagation
Cucurbitaceous crops are mostly propagated by seeds.
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Which planting method is preferred for cucurbitaceous crops to ensure proper vine growth and air circulation?
A · Flat bed planting with wide spacing
Flat bed planting with wide spacing is preferred to allow proper vine growth and air circulation.
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In cucurbitaceous crop cultivation, what is the recommended seed treatment before sowing?
B · Treating seeds with fungicides to prevent seed-borne diseases
Treating seeds with fungicides helps prevent seed-borne diseases and improves germination.
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Which nutrient is most critical for fruit development in cucurbitaceous crops?
C · Potassium
Potassium plays a vital role in fruit development and quality in cucurbitaceous crops.
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What is the recommended irrigation method for cucurbitaceous crops to conserve water and reduce disease incidence?
B · Drip irrigation
Drip irrigation conserves water and reduces leaf wetness, thereby lowering disease incidence.
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Excessive nitrogen application in cucurbitaceous crops primarily causes:
B · Excessive vegetative growth and poor fruiting
Too much nitrogen promotes vegetative growth at the expense of flowering and fruiting.
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Which insect pest is a major threat to cucurbitaceous crops causing fruit damage and yield loss?
B · Fruit fly
Fruit fly larvae infest fruits causing damage and yield loss in cucurbitaceous crops.
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Which fungal disease causes powdery white patches on leaves of cucurbitaceous crops?
B · Powdery mildew
Powdery mildew is characterized by powdery white fungal growth on leaves.
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Which of the following is an effective control measure against fruit fly in cucurbitaceous crops?
A · Use of pheromone traps
Pheromone traps attract and trap fruit flies, reducing their population.
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At what stage should cucurbitaceous crops be harvested for maximum shelf life and quality?
B · At immature green stage
Harvesting at immature green stage ensures better shelf life and quality for most cucurbitaceous vegetables.
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Which post-harvest practice helps in extending the shelf life of cucurbitaceous fruits?
B · Immediate cooling and storage at low temperature
Immediate cooling and low temperature storage slow down respiration and decay, extending shelf life.
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Which of the following is a major economic importance of cucurbitaceous crops?
B · They provide high-value vegetables and fruits for human consumption
Cucurbitaceous crops provide important vegetables and fruits that contribute significantly to nutrition and income.
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Apart from food, cucurbitaceous crops are economically important because:
C · They are a source of medicinal compounds and traditional remedies
Certain cucurbitaceous crops like bitter gourd have medicinal properties and are used in traditional medicine.
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Which of the following is a characteristic feature of cucurbitaceous crops?
A · Presence of tendrils for climbing
Cucurbitaceous crops typically have tendrils which help the plant climb and support itself.
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The fruit type commonly produced by cucurbitaceous crops is called a:
C · Pepo
Cucurbitaceous crops produce a specialized fruit called a pepo, which is a type of berry with a hard rind.
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Which of the following cucurbitaceous crops corresponds to the scientific name Cucumis sativus?
C · Cucumber
Cucumis sativus is the scientific name for cucumber, a major cucurbitaceous vegetable crop.
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Lagenaria siceraria is the scientific name of which cucurbitaceous crop?
A · Bottle gourd
Lagenaria siceraria is the scientific name for bottle gourd, a widely grown cucurbitaceous vegetable.
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Which cucurbitaceous crop is scientifically named Momordica charantia?
A · Bitter gourd
Momordica charantia is the scientific name of bitter gourd, known for its bitter fruit.
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What is the optimum temperature range for the growth of most cucurbitaceous crops?
B · 20–30°C
Most cucurbitaceous crops grow best between 20–30°C, which supports optimal flowering and fruit set.
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Which soil type is most suitable for cucurbitaceous crop cultivation?
B · Sandy loam soil with good drainage
Sandy loam soils with good drainage are ideal for cucurbitaceous crops as they prevent waterlogging and support root development.
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Excessive rainfall during flowering in cucurbitaceous crops primarily causes:
B · Flower drop and poor fruit set
Heavy rainfall during flowering can cause flower drop leading to poor fruit set in cucurbitaceous crops.
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Which planting method is commonly used for cucurbitaceous crops to ensure proper spacing and growth?
B · Ridge and furrow planting
Ridge and furrow planting is commonly used to improve drainage and provide adequate spacing for cucurbitaceous crops.
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Which propagation method is most commonly used for cucurbitaceous crops?
B · Seed propagation
Most cucurbitaceous crops are propagated by seeds as they produce viable seeds and have a short growth cycle.
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Which of the following planting techniques helps in reducing soil erosion and improving water retention in cucurbitaceous crops?
B · Contour ridge planting
Contour ridge planting follows the slope contour and helps reduce soil erosion and improves water retention.
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Which nutrient is most critical during the flowering and fruiting stage of cucurbitaceous crops?
C · Potassium
Potassium is essential during flowering and fruiting as it improves fruit quality and yield.
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Which irrigation method is most efficient for cucurbitaceous crops to conserve water and reduce disease incidence?
B · Drip irrigation
Drip irrigation delivers water directly to the root zone, conserving water and reducing leaf wetness that can cause diseases.
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A deficiency of which nutrient in cucurbitaceous crops causes leaf yellowing and poor fruit development?
B · Nitrogen
Nitrogen deficiency leads to chlorosis (yellowing) of leaves and reduced fruit size and yield.
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Which pest is a common and destructive insect affecting cucurbitaceous crops?
B · Fruit fly
Fruit fly larvae infest the fruits causing damage and making them unmarketable.
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Which disease of cucurbitaceous crops is characterized by white powdery growth on leaves?
B · Powdery mildew
Powdery mildew causes white powdery fungal growth on the surface of leaves and stems.
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Which of the following is an effective cultural control method to manage pests in cucurbitaceous crops?
C · Crop rotation and field sanitation
Crop rotation and proper field sanitation reduce pest buildup and disease incidence.
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What is the ideal stage for harvesting cucurbitaceous fruits to ensure best quality and shelf life?
B · Physiological maturity but before full ripening
Harvesting at physiological maturity before full ripening ensures better quality and longer shelf life.
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Which post-harvest practice helps in extending the shelf life of cucurbitaceous fruits?
C · Cooling and maintaining high relative humidity
Cooling and maintaining high relative humidity slows down respiration and prevents shriveling, extending shelf life.
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Which of the following is a major economic use of cucurbitaceous crops besides human consumption?
B · Use as rootstock for grafting
Some cucurbitaceous crops like bottle gourd are used as rootstocks for grafting to improve disease resistance.
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Which cucurbitaceous crop is widely cultivated for its seeds that are used as oil source?
A · Pumpkin
Pumpkin seeds are rich in oil and are commercially extracted for edible oil production.
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Which of the following combinations of cucurbitaceous crop, pollination mechanism, and fruit set limitation is correctly matched, considering floral biology and environmental interactions?
A · Watermelon - Monoecious - Limited by low bee activity during high humidity
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Which of the following best defines root vegetables?
A · Vegetables grown primarily for their edible underground parts
Root vegetables are defined as vegetables grown mainly for their edible underground parts such as roots, tubers, or bulbs.
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Which of the following is NOT a root vegetable?
C · Tomato
Tomato is a fruit vegetable that grows above ground, not a root vegetable.
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Root vegetables can be classified based on their botanical structures. Which of the following is a tuberous root?
A · Sweet potato
Sweet potato is a tuberous root, which is a swollen root storing nutrients.
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Which classification category do carrots belong to based on their root type?
A · Taproot
Carrots have a taproot system, which is a main central root that grows vertically downward.
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Which of the following root vegetables belongs to the family Apiaceae?
A · Carrot
Carrot belongs to the Apiaceae family, characterized by aromatic plants with hollow stems.
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Refer to the diagram below showing the morphology of a carrot root. Which part is responsible for nutrient storage?
A · Taproot cortex
The cortex of the taproot stores nutrients such as carbohydrates in root vegetables like carrot.
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Which root vegetable is botanically classified as a tuber and belongs to the Convolvulaceae family?
A · Sweet potato
Sweet potato is a tuberous root belonging to the Convolvulaceae family.
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Which of the following soil types is most suitable for root vegetable cultivation?
A · Sandy loam with good drainage
Sandy loam soil with good drainage is ideal for root vegetables as it allows easy root penetration and prevents waterlogging.
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What is the optimal pH range for growing most root vegetables?
A · 6.0 to 7.5
Most root vegetables grow best in slightly acidic to neutral soils with pH between 6.0 and 7.5.
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Refer to the soil profile illustration below. Which soil horizon is most critical for root vegetable growth?
A · A horizon (topsoil)
The A horizon or topsoil contains most nutrients and organic matter essential for root vegetable growth.
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Which climatic condition is most favorable for root vegetable growth?
A · Cool temperatures with moderate rainfall
Cool temperatures and moderate rainfall favor root development and quality in root vegetables.
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Which propagation method is commonly used for root vegetables like carrot and radish?
A · Seed sowing
Root vegetables such as carrot and radish are propagated by direct seed sowing.
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What is the recommended planting depth for carrot seeds to ensure proper germination?
A · 1 to 2 cm
Carrot seeds should be sown shallowly at 1 to 2 cm depth for good germination and seedling emergence.
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Which planting technique helps in obtaining uniform root size in root vegetables?
A · Thinning of seedlings
Thinning seedlings reduces competition and helps produce uniform root size.
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Refer to the growth stage chart below for a root vegetable. At which stage is root enlargement most rapid?
A · Stage III (Tuber initiation)
Root enlargement or tuber initiation stage is when the root thickens rapidly.
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Which nutrient is most critical for root development in root vegetables?
A · Phosphorus
Phosphorus promotes root growth and development in root vegetables.
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Which root vegetable is known for its high vitamin A content?
A · Carrot
Carrots are rich in beta-carotene, a precursor of vitamin A.
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Which economic benefit is primarily associated with root vegetable cultivation?
A · High market demand and storage potential
Root vegetables have high market demand and good storage life, making them economically important.
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Which mineral nutrient is abundant in beetroot and important for blood health?
A · Iron
Beetroot is rich in iron, which is vital for hemoglobin formation and blood health.
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Which of the following is a major economic constraint in root vegetable production?
A · Post-harvest losses due to spoilage
Post-harvest losses caused by spoilage and poor storage are major economic constraints.
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Which pest is a common problem in carrot cultivation?
A · Carrot root fly (Psila rosae)
Carrot root fly larvae damage the roots causing yield loss.
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Which fungal disease causes black rot in root vegetables like sweet potato?
A · Ceratocystis fimbriata
Ceratocystis fimbriata causes black rot, a serious disease in sweet potato roots.
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Which integrated pest management (IPM) practice is effective against root knot nematodes in root vegetables?
A · Crop rotation with non-host crops
Crop rotation with non-host crops reduces nematode populations effectively.
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Which of the following is a viral disease affecting root vegetables such as carrot?
A · Carrot motley dwarf virus
Carrot motley dwarf virus causes stunted growth and leaf mottling in carrots.
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Which is the ideal stage for harvesting root vegetables to ensure maximum quality?
A · When roots reach optimum size and maturity
Harvesting at optimum root size and maturity ensures best quality and storage life.
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Which post-harvest treatment helps in extending the shelf life of root vegetables?
A · Curing at 25-30\u00b0C with high humidity
Curing helps heal wounds and toughen skins, reducing spoilage during storage.
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Refer to the storage temperature chart below. What is the recommended storage temperature range for most root vegetables?
A · 0 to 4\u00b0C
Most root vegetables store best at low temperatures between 0 and 4\u00b0C to reduce respiration and spoilage.
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Which common variety of carrot is known for its deep orange color and high beta-carotene content?
D · Danvers
Danvers carrot variety is known for its deep orange color and high beta-carotene content.
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Which breeding improvement is commonly targeted in root vegetable breeding programs?
A · Improved root shape and uniformity
Breeding focuses on improving root shape, size uniformity, and quality traits in root vegetables.
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Which variety of beetroot is known for its globe-shaped roots and high sugar content?
A · Detroit Dark Red
Detroit Dark Red is a popular beetroot variety with globe-shaped roots and high sugar content.
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Which of the following is a hard-to-breed trait in root vegetables due to complex genetics?
A · Resistance to multiple pests and diseases
Breeding for resistance to multiple pests and diseases is complex due to polygenic inheritance.
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Which of the following best defines leafy vegetables?
A · Vegetables grown primarily for their edible leaves
Leafy vegetables are those cultivated mainly for their edible leaves, which are consumed fresh or cooked.
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Why are leafy vegetables important in human diet?
B · They provide essential vitamins and minerals
Leafy vegetables are important because they provide essential vitamins (like vitamin A, C, K) and minerals (such as iron and calcium) necessary for human health.
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Which of the following is NOT a characteristic of leafy vegetables?
C · Develop edible fruits
Leafy vegetables do not develop edible fruits; they are grown for their leaves.
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Which of the following statements about leafy vegetables is TRUE?
C · They contribute to reducing malnutrition
Leafy vegetables are rich in nutrients and help in reducing malnutrition, especially vitamin and mineral deficiencies.
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Which of the following is a major type of leafy vegetable?
A · Spinach
Spinach is a major leafy vegetable grown for its edible leaves.
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Which of the following leafy vegetables belongs to the Brassicaceae family?
C · Mustard greens
Mustard greens belong to the Brassicaceae family, which includes many leafy vegetables.
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Which of the following leafy vegetables is classified as a pseudocereal?
A · Amaranth
Amaranth is considered a pseudocereal and leafy vegetable, valued for both its leaves and seeds.
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Which of the following leafy vegetables is known for its high antioxidant content?
C · Mustard greens
Mustard greens are rich in antioxidants, which help in protecting cells from oxidative damage.
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Refer to the diagram below showing the morphology of a typical leafy vegetable plant. Which part is labeled as the petiole?
A · The stalk attaching the leaf blade to the stem
The petiole is the stalk that connects the leaf blade to the stem, allowing nutrient transport.
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Which of the following botanical characteristics is typical of leafy vegetables?
A · Presence of fleshy edible leaves
Leafy vegetables typically have fleshy, tender leaves that are consumed, unlike fruits or tubers.
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Which leaf arrangement is most commonly found in leafy vegetables like spinach and lettuce?
C · Rosette
Many leafy vegetables such as spinach and lettuce exhibit a rosette leaf arrangement where leaves form a circular cluster at the base.
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Which of the following leaf types is typical of mustard greens?
A · Simple and lobed
Mustard greens have simple leaves with lobed margins, typical of many Brassicaceae leafy vegetables.
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Refer to the diagram below illustrating the growth stages of a leafy vegetable. At which stage is the plant ready for first harvest?
D · Maturity stage with fully expanded leaves
Leafy vegetables are harvested when leaves are fully expanded but before flowering to ensure tenderness and quality.
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Which climatic condition is most suitable for the cultivation of leafy vegetables?
B · Moderate temperature with adequate moisture
Leafy vegetables generally require moderate temperatures and sufficient moisture for optimal growth.
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Which soil type is ideal for growing leafy vegetables?
C · Loamy soil rich in organic matter
Loamy soils rich in organic matter provide good aeration, moisture retention, and nutrients, ideal for leafy vegetables.
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Which of the following temperature ranges is generally optimal for leafy vegetable growth?
A · 10°C to 25°C
Most leafy vegetables grow best in cool to moderate temperatures between 10°C and 25°C.
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Refer to the soil texture triangle diagram below. Which soil texture is best suited for leafy vegetable cultivation?
A · Silty loam
Silty loam has good water retention and aeration properties, making it suitable for leafy vegetables.
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Which propagation method is most commonly used for leafy vegetables like spinach and lettuce?
A · Seed sowing
Most leafy vegetables are propagated by direct seed sowing due to their short life cycle and ease of germination.
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Which cultivation practice helps in increasing leaf yield in leafy vegetables?
A · Frequent harvesting or cutting back
Frequent harvesting or cutting back encourages new leaf growth and increases overall yield.
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Which fertilizer is most beneficial for leafy vegetable growth?
A · High nitrogen fertilizer
Nitrogen promotes vegetative growth and leaf development, essential for leafy vegetables.
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Which irrigation method is most suitable for leafy vegetable cultivation to prevent leaf diseases?
A · Drip irrigation
Drip irrigation reduces leaf wetness and thus lowers the risk of foliar diseases.
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Which of the following is an advanced propagation technique used for leafy vegetables to produce disease-free plants?
A · Tissue culture
Tissue culture allows rapid multiplication of disease-free plants under controlled conditions.
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Which of the following practices helps in weed management in leafy vegetable cultivation?
A · Mulching
Mulching suppresses weed growth by blocking sunlight and conserving soil moisture.
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Which vitamin is most abundant in leafy vegetables like spinach and kale?
A · Vitamin A
Leafy vegetables are rich in Vitamin A, important for vision and immune function.
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Which mineral commonly found in leafy vegetables helps prevent anemia?
A · Iron
Iron is essential for hemoglobin formation and is abundant in leafy vegetables.
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Which of the following statements about the economic importance of leafy vegetables is TRUE?
B · They provide quick returns due to short crop duration
Leafy vegetables have short growing periods, allowing farmers to get quick returns and multiple crops per year.
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Which nutrient deficiency can be addressed by regular consumption of leafy vegetables?
A · Vitamin A deficiency
Leafy vegetables are rich in Vitamin A precursors, helping prevent Vitamin A deficiency.
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Which of the following leafy vegetable pests causes characteristic leaf mining damage?
A · Leaf miner fly
Leaf miner flies lay eggs inside leaves, and larvae create tunnels or mines visible as serpentine trails.
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Refer to the diagram below showing typical pest damage on leafy vegetable leaves. Which pest is most likely responsible for the damage shown?
B · Leaf miner causing serpentine mines
The serpentine mines visible on the leaf are typical symptoms of leaf miner infestation.
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Which disease of leafy vegetables is caused by the fungus Alternaria and leads to leaf spots?
A · Alternaria leaf spot
Alternaria leaf spot is a fungal disease characterized by dark circular spots on leaves.
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Which of the following is an effective cultural practice to manage pests in leafy vegetable cultivation?
A · Crop rotation
Crop rotation helps break pest and disease cycles by changing host plants.
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Which chemical group of pesticides is commonly used to control aphids in leafy vegetables?
A · Neonicotinoids
Neonicotinoids are systemic insecticides effective against sap-sucking pests like aphids.
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Which of the following integrated pest management (IPM) strategies is suitable for leafy vegetables?
A · Use of resistant varieties, biological control, and selective pesticides
IPM combines resistant varieties, biological agents, and selective pesticides to sustainably manage pests.
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Which harvesting method is recommended for leafy vegetables to ensure continuous production?
A · Cut and come again harvesting
Cut and come again harvesting involves cutting leaves while allowing regrowth for multiple harvests.
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Which post-harvest practice helps in extending the shelf life of leafy vegetables?
A · Cooling immediately after harvest
Rapid cooling reduces respiration rate and delays spoilage, extending shelf life.
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Refer to the diagram below showing proper post-harvest handling steps for leafy vegetables. Which step is indicated by the cooling chamber?
A · Pre-cooling to reduce field heat
Pre-cooling removes field heat immediately after harvest to maintain freshness.
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Which packaging material is preferred for leafy vegetables to maintain freshness during transport?
A · Perforated plastic bags
Perforated plastic bags allow air exchange, reducing moisture condensation and spoilage.
