Question

Suggest four important steps to produce a disease resistant plant through conventional plant breeding technology.

Answer 1

NPBTs (New plant breeding technologies) are popularly utilized for producing new plants with specific traits. The science reported these plants in general are as protected as those once developed utilizing “conventional” plant breeding methods.

Complete Answer:
To answer this question, we have to know about the disease resistant plant. Many methods of getting disease-resistant plants are usually worked solo or in combination. These consist of reorganization from an external origin, induced variation and selection. All these three can be utilized at many other stages in a constant process; for example, many free from harmful insects or plant diseases may be specified for contrast with local individuals. The more promising lines or strains are then selected for further propagation, and they are further improved by promoting as much variation as possible through hybridization or special treatment.

The four important steps are:
1. Screening and germplasm for resistant sources.
2. Hybridization of selected parents
3. Selection and evaluation of the hybrids
4. Testing and release of new variants.

Note: Developing disease-resistant plants is a continuing process. Methods used in breeding plants for disease resistance are the same as those utilized in breeding for other features excluding that two organisms are included in the pathogen and the host plant. Thus, it is necessary to know as much as possible about the nature of inheritance of the resistant characters in the host plant and the existence of physiological races or strains of the pathogen.