Seed Science MCQs-27

Seed Science MCQs-27
Multiple Choice Questions (MCQs)
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1. According to Harrington’s temperature rule, if storage temperature decreases from 40°C to 25°C, how will seed longevity change approximately?

 Double three times

 Double once

 Double twice

 Remain unchanged

2. Oilseeds store energy mainly as lipids

 o

 o

3. Reactive oxygen species (ROS) initiate seed aging primarily by damaging ___________

 Phospholipids of cellular membranes

 Nuclear DNA directly

 Storage proteins

 Cell wall cellulose

4. Seed imbibition occurs even in dead seeds because it is a physical process

 False

 True

5. Seed dormancy primarily prevents_______

 Nutrient accumulation

 Seed storage

 Premature germination

 Seed maturation

6. Phase III of the seed imbibition curve is characterized by _________

 Completion of seed maturation

 Radicle protrusion and initiation of seedling growth

 Induction of seed dormancy

 Seed desiccation

7. Extremely high temperatures can damage germinating seeds

 False

 True

8. Germination percentage is commonly used as an indicator of _________

 Seed color

 Seed viability

 Seed size

 Seed moisture content

9. During germination of cereal seeds, the synthesis of hydrolytic enzymes  in the aleurone layer is primarily stimulated by ______

 Auxin

 Gibberellins

 Cytokinin

 Abscisic acid

10. Water uptake during seed germination (imbibition) occurs in _______

 Three phases

 Two phases

 Four phases

 One phase

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Seed Science MCQs-27