Question

Write a note on the selection and testing of superior recombinants in plant breeding.

Answer 1

Hint: The progenies having the desirable characteristics are selected to produce a better plant having characteristics of both the parent plants which is highly superior and is most desirable for better yield.

Complete answer:
Plant breeding is the technique that is used to breed or mate those plants that have better characteristic features and their progeny will produce the better or the desirable traits. The progenies will have superior characters leading to a better yield. These hybrids are selected on the basis of their superior characteristics for the process of hybridization where these hybrids undergo breeding for many generations and thus creating a pure line breed at the end.
The recombinant is the plant offspring consisting of the combination of the desirable characters or traits from both the parents. This process includes the step of selection of the offspring among the various progenies of the hybrids. It is used in the improvement of the quality of the nutrients of the products that are obtained from the plants and the animals.
The plant breeding is used to produce a new genetic makeup of the plant to obtain a hybrid of specific qualities. It is used in the process of obtaining a plant which will be salt-tolerant and having a high yield of biomass. It has various advantages that include the improved genetic constitution of plants, a large number of plants can be obtained in a span of less than a year, eliminate the unproductive and the undesirable types of plant traits, produce disease-resistant plants, and is used to conserve the hybrid vigor for several generations.

Note: The father of genetics is considered to be Gregor Mendel who experimented on the pea plant leading to the introduction of the law of inheritance via plant hybridization. This leads to the improved production of the crops by the process of plant breeding. In China, the grafting technique was well established in 2000 BCE.