A. 10-20%
B. 5-15%
C. 20-50%
D. 20-60%
Agronomy
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……………..?
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…………………?
A. Saprophytes
B. Parasites
C. Obligatory parasites
D. Bacteria
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…………….?
A. Long day plants
B. Short day plants
C. Photoperiod
D. Phototropism
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…………….?
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…………….?
A. 6.00 pH
B. 7.03 pH
C. 8.00 pH
D. 6.5 pH
Drought is measuring in terms of…………….?
A. Yield performance
B. Photosynthesis
C. Root length of seeding
D. All the above