What are the factors for which variety improvement of crop is done?
(a) Higher yield: It increases production of crop. (b) Biotic and abiotic resistance: Crop should be resistant to biotic factors like diseases, insects, pests and abiotic factor like drought, salinity, heat, cold, frost and water logging. (c) Change in maturity duration: Short-duration maturity allows farmer to grow more crops in a year and reduces the cost of crop production. (d) Wider adaptability: Crop’should be able to adapt to changing environmental conditions. (e) Desirable agronomic characteristics: The tallness and dwarfness of crop. Dwarfness is required for cereals, so that less nutrients are consumed.
