What are the desirable agronomic characteristics for crop improvements?

The desirable agronomic characteristics for crop improvements are different for different crops. Some of them are:

1. Tallness and profuse branching are desirable characters for fodder crops.
2. Dwarfness is desired in cereals, so that less nutrients are consumed by these crops and also to avoid crop lodging.
3. High sugar content in sugarcanes and sugarbeets.
4. Long awns and broader leaves to increase photosynthesis in wheat.
5. Increased number of tillers in paddy.