Highly decomposed stage of organic matter is called ____?
A. Cellulose
B. Organic acid
C. Humus
D. All the above
Cultivation of same crop year after year is called ______?
A. Single cropping
B. Monocropping
C. Double, cropping
D. All the above
The oxygen concentration in the air is _____?
A. 30%
B. 21%
C. 16%
D. 45%
Air contains ______?
A. 70% nitrogen
B. 50% nitrogen
C. 78% nitrogen
D. None of the above
Seed leachate conductivity is significantly higher in seeds having _____?
A. Higher shoot weight
B. Lower shoot weight
C. Higher root weight
D. None of the above
Use of linear measurements of plumule growth as a vigour test was first suggested by ______?
A. Woodstock (1976)
B. Germ (1949)
C. Baskin (1972)
D. Maguire (1962)
Electrolytes leakage is found greater in _____?
A. HD grains
B. LD grains
C. All the above
D. non of these
The potential means of enhancing productivity is _____?
A. Quality of seeds
B. Quantity of seeds
C. Seed density
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
Abnormal seeding growth in rice may be due to ______?
A. Intrinsic Mechanism
B. Lack of integrity in seed cells
C. Endogenous inhibitors
D. Al the above
