1071. Hitting the seed with force against a hard surface to break seed dormancy is called_______________?
A. Impaction
B. Abrasion
C. Stratification
D. Scarification
1072. Seed bag labeled with white colour indicates_________________?
A. Certified seed
B. Basic seed
C. Pre-basic seed
D. Pure seed
1073. The substance that an enzyme acts upon is known as___________________?
A.Product
B. Substrate
C. Mycotoxin
D. None of the above
1074. Two much Mg may create deficiency for_____________________?
A. P
B. Ca
C. N
D. K
1075. The contact herbicides are less effective to_________________?
A. Broad leaved weeds
B. Perenial plants
C. Seasonal plants
D. All the above
1076. Tensiometer is used for measuring____________________?
A. Soil moisture
B. Water pressure
C. Wind pressure
D. None of the above
1077. Mg in plants act as___________________?
A. Protein activator
B. Enzyme activator
C. Starch activator
D. None of the above
1078. The given off water vapours from the surface of leaves is called________________?
A. Transpiration
B. Respiration
C. Exudation
D. Evaporation
1079. A crop grown on residual moisture after harvesting rice is called__________________?
A. Barani crop
B. Dubari crop
C. Ratoon crop
D. Sure crop
1080. The value of regression and correlation is the same when the correlation between two variables is_________________?
A. Imperfect
B. Perfect
C. Positive
D. Negative