The crop which are cultivated for grain purposes are called_________________?
A. Fodder crops
B. Cereal crops
C. Fiber crops
D. Leguminous crops
A condition of green plants in which they become unhealthy and pale fellow in colour is known as_________________?
A condition of green plants in which they become unhealthy and pale fellow in colour is known as_________________?
A. Chromoplast
B. Leucoplast
C. Chlorosis
D. Chromoplast
Growing more then one crop in a season in the same land is called________________?
Growing more then one crop in a season in the same land is called________________?
A. Monocropg
B. Double cropg
C. Intensive cropg
D. Intercropg
Wheat is predominantly________________?
Wheat is predominantly________________?
A. Self pollinated crop
B. Often cross pollinated crop
C. Cross pollinated crop
D. Apomictie crop
Yield losses of rice crop due to weed infestation are___________________?
Yield losses of rice crop due to weed infestation are___________________?
A. 10-20%
B. 5-15%
C. 20-50%
D. 20-60%
Dwarf varieties of wheat are more resistance to_______________?
Dwarf varieties of wheat are more resistance to_______________?
A. Disease
B. Insect pest
C. Lodging
D. Viruses
The cotton plant sheds more fruits mainly due to_________________?
The cotton plant sheds more fruits mainly due to_________________?
A. More number of irrigations
B. Higher temperature
C. Higher dose of fertilizer
D. Insects and pest
The organisms which do not prepare their own food and depend on the dead organisms are called_____________________?
The organisms which do not prepare their own food and depend on the dead organisms are called_____________________?
A. Saprophytes
B. Parasites
C. Obligatory parasites
D. Bacteria
When crop plants adopt to a new environment are called___________________?
When crop plants adopt to a new environment are called___________________?
A. Accaumatization
B. Domestication
C. Selection
D. Introduction
Plants which change from the vegetative to the reproductive stage by producing flowers and fruits when the day become longer is called________________?
Plants which change from the vegetative to the reproductive stage by producing flowers and fruits when the day become longer is called________________?
A. Long day plants
B. Short day plants
C. Photoperiod
D. Phototropism