A. 50°c for 5 hrs
B. 53°c for 6 hrs
C. 45°c for 6 hrs
D. none of the above
Related Mcqs:
- 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 - Hitting the seed with force against a hard surface to break seed dormancy is called_______________?
A. Impaction
B. Abrasion
C. Stratification
D. Scarification - 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 - Yield losses of rice crop due to weed infestation are___________________?
A. 10-20%
B. 5-15%
C. 20-50%
D. 20-60% - Better crop establishment especially for direct seeded rice can be obtained by using________________?
A. High density grain
B. Low density grain
C. Both a & b
D. None of the above - Azolla which fixes nitrogen in rice field is__________________?
A. Bacteria
B. Fungi
C. Ferm
D. None of the above - A crop grown on residual moisture after harvesting rice is called__________________?
A. Barani crop
B. Dubari crop
C. Ratoon crop
D. Sure crop - A crop grown on residual moisture after harvesting rice is called__________________?
A. Barani crop
B. Dubari crop
C. Ratoon crop
D. Sure crop - In rice, high silicon content, in shoot confers resistance to_________________?
A. Leaf borer
B. Stem borer
C. Root borer
D. All the above - Abnormal seeding growth in rice is more closely related, with______________?
A. IID grains
B. LD grains
C. Both a & b
D. None of the above
