Describe the breeding of crop plants for disease resistance and high yield.

Explanation

Breeding of crop plant for disease resistance and high yield:
1. A number of pathogens such a funge, bacteria and viruses cause many disease in plants which result in decrease in crop yield.
2. Breeding of crop plants for developing high yielding and disease resistant varieties is the cheapest and most effective method.
3. It not only helps in enhancing the food production but also reduces the dependence on the use of chemical pesticies.
4. It has been found that the resistance to deseases which are caused by pests can be controlled genetically.
5. The disease causing genes can be eliminated from susceptible varieties through plant breeding technique.