Oka (1975) has suggested that me population size suitable for maintenance and seed production of a commercial crop of a self pollinated species should be________________?

Related Mcqs:

1. 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

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

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

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. Diversity of animals and crop species in different ecosystems is called as_______________?

   A. Mirgation
   B. Biodiversity
   C. Ecology
   D. Ecosystem

6. In pulses, for the production of nucleus seed we require minimum of_________________?

   A. 300 plant progenies
   B. 400 plant progenies
   C. 500 plant progenies
   D. 200 plant progenies

7. In Bindi, production of foundation seed needs an isolation distance of__________________?

   A. 100 meters
   B. 50 meters
   C. 200 meters
   D. 3 meters

8. In Sunflower, production of foundation seed requires as isolation distance of__________________?

   A. 400 meters
   B. 800 meters
   C. 200 meters
   D. 100 meters

9. In wheat, production of certified seed needs an isolation distance of____________________?

   A. 5 Meters
   B. 4 Meters
   C. 3 Meters
   D. 2 Meters

10. Critical factors for crop production is________________?

    A. Land
    B. Water
    C. Pure seed
    D. fertilizer