MCQ on Seed Technology for various Agriculture Exams Part - 22

1. A line becomes homozygous by repeated selfing up to
   A. 3 generations
   B. 5 generations
   C. 8 generations
   D. 12 generations

2. The first developed hormone is
   A. ABA
   B. CKs
   C. Auxin
   D. GA3

3. The major ‘auxin’ in developing seed is
   A. IAA
   B. ABA
   C. BOAA
   D. BOA

4. Gibberellic acid was first isolated from
   A. Fungus
   B. Minerals
   C. Animals
   D. Bacteria

5. Uptake of water from the atmosphere by cells or tissue in the seed coat is called as
   A. Wetting of the seed
   B. Adsorption
   C. Adhesion
   D. Absorption

6. Impaired viability caused by exposure to low temperature is called as
   A. Drought injury
   B. Chilling injury
   C. Mechanical injury
   D. Chilling tolerance

7. The process of initial water uptake by seeds prior to germination is known as
   A. Germination
   B. Desiccation
   C. Imbibition
   D. Impermeation

8. Seeds which require light are called
   A. Skotoblastic
   B. Photo blastic
   C. Hydrophilic
   D. Hydrophobic