Yield losses of rice crop due to weed infestation are___________________?
A. 10-20%
B. 5-15%
C. 20-50%
D. 20-60%
Month: March 2019
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