FACTORS AFFECTING SEED QUALITY

Question No. 1 Marks +1 -0 Time

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What is the primary reason seed production should occur in areas where crops are well adapted?

A. To reduce transportation costs
B. To maintain genetic stability and prevent cultivar shift
C. To increase seed yield
D. To reduce labor requirements

Question No. 2 Marks +1 -0 Time

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Which environmental factor combination is most critical for determining flowering behavior in different geographical regions?

A. Soil type and rainfall
B. Day-length and light intensity
C. Temperature and humidity
D. Wind direction and soil pH

Question No. 3 Marks +1 -0 Time

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What temperature range is most suitable for wheat maturity to ensure good seed quality?

A. 15°-20°C
B. 18°-25°C
C. 25°-30°C
D. 30°-35°C

Question No. 4 Marks +1 -0 Time

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How does excessive rainfall during flowering primarily affect seed production?

A. Increases disease susceptibility
B. Interferes with pollination processes
C. Causes nutrient leaching
D. Reduces light penetration

Question No. 5 Marks +1 -0 Time

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What is the optimal temperature range for bee activity during pollination?

A. 18°-28°C
B. 24°-38°C
C. 30°-40°C
D. 15°-25°C

Question No. 6 Marks +1 -0 Time

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Which humidity condition is required for proper seed maturity?

A. High humidity throughout
B. Moderate humidity during flowering, low during maturity
C. Low humidity throughout
D. Variable humidity

Question No. 7 Marks +1 -0 Time

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What defect in pea seeds is caused by boron deficiency?

A. Seed shrinkage
B. Hollow heart defect
C. Poor germination
D. Discoloration

Question No. 8 Marks +1 -0 Time

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Which disease in rice is associated with zinc deficiency?

A. Blast disease
B. Khaira disease
C. Brown spot
D. Bacterial blight

Question No. 9 Marks +1 -0 Time

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Why is isolation distance important in seed production?

A. To prevent mechanical damage
B. To avoid cross-pollination
C. To reduce pest problems
D. To improve soil fertility

Question No. 10 Marks +1 -0 Time

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What type of climate is most suitable for producing disease-free seeds?

A. Cool and humid
B. Hot and dry
C. Slightly warm and dry
D. Cold and wet

Question No. 11 Marks +1 -0 Time

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How does high temperature during crop maturity affect seed quality?

A. Improves seed vigor
B. Causes forced maturity and poor quality
C. Increases seed size
D. Enhances germination rate

Question No. 12 Marks +1 -0 Time

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What happens to mechanically injured seeds during storage?

A. They heal naturally
B. Viability loss is accelerated
C. They become more resistant
D. No significant effect occurs

Question No. 13 Marks +1 -0 Time

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Which soil-borne pathogen spreads from seed to soil in food legumes like chickpea?

A. Rhizoctonia
B. Fusarium wilt
C. Pythium
D. Sclerotinia

Question No. 14 Marks +1 -0 Time

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What is the primary benefit of a limited-generation seed certification system?

A. Reduces production costs
B. Provides safeguard against genetic shift
C. Increases seed yield
D. Simplifies quality testing

Question No. 15 Marks +1 -0 Time

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How does precocious germination affect seed quality?

A. Improves vigor
B. Reduces keeping quality
C. Increases yield potential
D. Enhances disease resistance

Question No. 16 Marks +1 -0 Time

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What soil characteristic is essential for producing vigorous and viable seeds?

A. High clay content
B. Adequate macro and micronutrients
C. Low organic matter
D. High salt content

Question No. 17 Marks +1 -0 Time

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Why are cross-pollinated species more susceptible to genetic shift during seed production?

A. They have weaker genetics
B. Environmental stress affects them more
C. Population segments can change proportionally
D. They require more nutrients

Question No. 18 Marks +1 -0 Time

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What factor during transportation most threatens seed viability?

A. Mechanical vibration
B. Exposure to rain and high temperature
C. Poor packaging
D. Extended duration

Question No. 19 Marks +1 -0 Time

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How does light intensity influence seed production?

A. Only affects germination
B. Influences pollination, drying and ripening
C. Only affects plant height
D. Has no significant effect

Question No. 20 Marks +1 -0 Time

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What characteristic makes wheat cultivation possible worldwide?

A. High yield potential
B. Development of cultivars adapted to different day-lengths
C. Disease resistance
D. Drought tolerance

Question No. 21 Marks +1 -0 Time

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Which factor combination is most important for soil suitability in seed production?

A. High pH and good drainage
B. Well-drained, fertile, and pathogen-free
C. Deep and sandy
D. Rich in organic matter only

Question No. 22 Marks +1 -0 Time

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What happens when seeds attain physiological maturity during rainy conditions?

A. Quality improves
B. Poor quality seeds with reduced keeping ability are produced
C. Germination rate increases
D. Disease resistance improves

Question No. 23 Marks +1 -0 Time

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How does day-length requirement vary within plant species?

A. It remains constant
B. Cultivars adapted to different day-lengths have been developed
C. Only temperature matters
D. It depends on soil type

Question No. 24 Marks +1 -0 Time

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What is the relationship between humidity and disease development in seeds?

A. High humidity reduces diseases
B. Low humidity increases diseases
C. High humidity encourages diseased seed production
D. Humidity has no effect

Question No. 25 Marks +1 -0 Time

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Why should seed production areas be free from weed seeds?

A. To reduce competition only
B. To prevent contamination and maintain purity
C. To improve soil fertility
D. To reduce harvesting time

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