Here is an essay on ‘Plant Breeding for Disease Resistance’ for class 9, 10, 11 and 12. The main hindrance to higher yield is the susceptibility of plants towards disease caused by fungi, bacteria and viruses and to insects and pests. There are various physical, chemical and biological methods for disease control but the cheapest and the most convenient method [...]
The main steps in breeding a new genetic variety of a crop are: 1. Collection of Variability 2. Evaluation and Selection of Parents 3. Cross Hybridization among the Selected Parents 4. Selection and Testing of Superior Recombinants 5. Testing, Release and Commercialization of New Cultivars. Step # 1. Collection of Variability: Genetic variation is the source of raw material for [...]
Justifications for the development and use of MAS in plant breeding fall into four broad areas that are relevant to almost all target crops. These are: a. Traits that are difficult to manage through conventional phenotypic selection because they are expensive or time consuming to measure, or have low penetrance or complex inheritance. b. Traits whose selection depends on specific [...]