What are the desirable agronomic characteristics for crop improvements?

If we develop those varieties of- crops which contain desired agronomic traits (e.g., high yield, dwarfness, early maturing, etc.) then it will help in setting higher production, Thus, tallness and profuse branching are desirable characters for fodder crops. Dwarfness is desired in cereals, so that less nutrient, are consumed by these crops. Dwarf varieties of cereals also provide protection from lodging.