genetic purity of seed is determined by________________?

Related Mcqs:

1. genetic purity is assessed through________________?

   A. Inspection
   B. Seed testing
   C. Germination
   D. All the a b c

2. Breeders seed production is taken up from the nucleus seed B and A lines are pollinated in an isolation of 1 Km in a ratio of_________________?

   A. 1:2
   B. 1:3
   C. 1:4
   D. 1:5

3. The seed dormancy of rice seed can be broken by putting into the oven at____________________?

   A. 50°c for 5 hrs
   B. 53°c for 6 hrs
   C. 45°c for 6 hrs
   D. none of the above

4. Hitting the seed with force against a hard surface to break seed dormancy is called_______________?

   A. Impaction
   B. Abrasion
   C. Stratification
   D. Scarification

5. Use of tetrazolium staining for assessment of seed quality was suggested by________________?

   A. Woodstock (1973)
   B. Moore (1973)
   C. Maguire (1962)
   D. Germ (1950)

6. Seeds of wheat, paddy and maize showed positive correlation germination (%) and viability (%) as determined by________________?

   A. Grow put test
   B. Tz test
   C. Test of genetic purity of seeds
   D. Ageing test

7. Prescribed germination percentage of foundation seed of ground nut is_________________?

   A. 70
   B. 20
   C. 85
   D. 90

8. Breeder seed is the progeny of_____________________?

   A. Certified seed
   B. Nucleus seed
   C. Foundation seed
   D. Registered seed

9. Who described the method of estimating seed vigor on the basis of colour intensity of stained seed________________?

   A. Woodstock (1976)
   B. Kittock and Law (1969)
   C. Maguire (1962)
   D. Nicolls & Heu Decker (1968)

10. Seed dormancy of nee seeds can be successfully broken by heat treatment at________________?

    A. 50°c for 3-7 days
    B. 45°c for 3-8 days
    C. 54°c for 2-6 days
    D. None of the above