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%
Agronomy
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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 -
The process of converting food nutrients to carbohydrates in plants is called________________?
The process of converting food nutrients to carbohydrates in plants is called________________?A. Metabolism
B. Photosynthesis
C. Absorption
D. Assimilation -
There has been emphasis on the conservation of wild relatives of cultivated plants because wild plants________________?
There has been emphasis on the conservation of wild relatives of cultivated plants because wild plants________________?A. Grow better then cultivated plants
B. Serve, as valuable fodder plants
C. Needed to understand the origin of cu;cultivated plants
D. Carrying many useful genes which are lost in cultivated plants -
Soil reaction of preference of sugarcane is________________?
Soil reaction of preference of sugarcane is________________?A. 6.00 pH
B. 7.03 pH
C. 8.00 pH
D. 6.5 pH -
Drought is measuring in terms of________________?
Drought is measuring in terms of________________?A. Yield performance
B. Photosynthesis
C. Root length of seeding
D. All the above