List out some useful traits in improved crops.

(N/A) Useful traits of improved crops are:
$(a)$ Higher yield: To increase the productivity of the crop per acre.
$(b)$ Improved nutritional quality: To enhance the protein,oil,vitamin,mineral,or micronutrient content.
$(c)$ Resistance to biotic and abiotic stresses: To make crops resistant to diseases,insects,and pests (biotic) and stresses like drought,salinity,heat,or cold (abiotic).
$(d)$ Change in maturity duration: To develop varieties that mature in a shorter duration,allowing farmers to grow multiple crops in a year.
$(e)$ Wide range of adaptability: To allow crops to grow in different climatic conditions.
$(f)$ Desired agronomic characteristics: To develop traits like dwarfness in cereals (for less nutrient consumption) or tallness and profuse branching in fodder crops.