A. Allergy
B. Allelopathy
C. Parasitism
D. Antagorusm
Related Mcqs:
- The living together of two or more species in a prolonged and intimate ecological relationship is called________________?
A. Symbiosis
B. Biosystem
C. Auto environment
D. Climate - The branch of Science which deals cultivation of land is called________________?
A. Geology
B. Agriculture
C. Horticulture
D. Petrology - The heating of atmosphere by gases that are transparent to sun light but opaque to radiated heat is called________________?
A. Green house effect
B. Pollution
C. Warming
D. Solar radiation - The process of converting food nutrients to carbohydrates in plants is called________________?
A. Metabolism
B. Photosynthesis
C. Absorption
D. Assimilation - 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 productive branches of cotton are called________________?
A. Monopodial branches
B. Sympodial branches
C. Fruiting branches
D. non of these - The amount of water required to rise a crop to matunty with in a given period of time is called________________?
A. Water frequency
B. Water depletion
C. Water balance
D. Crop Water requirement - The given off water vapours from the surface of leaves is called________________?
A. Transpiration
B. Respiration
C. Exudation
D. Evaporation - A warm summer and pronounced winter is called________________?
A. Arid
B. Tropical
C. Temperature
D. None of the above - Cultivation of same crop year after year is called________________?
A. Single cropping
B. Monocropping
C. Double, cropping
D. All the above
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