Principles of Plant Breeding (2+1)

Situation of Mutation Breeding

1. When the desired variability is not found its cultivated varieties or in the germplasm
2. When a high yielding variety has a defect, the defect can be also being changed without much alteration in the genetic background.
3. To break the undesireble linkage
4. In crops sexual reproduction is absent and creation of variability through recombination is not possible
5. Generation cycle is very long. E.g: Plantation crops.
6. When attractive flowers and of foliage colour have to be developed in ornamental crops