Plant breeding is a technique of improving

Which of the following is not a main step of plant breeding?

Select the appropriate option for evaluation and selection of parents in plant breeding.

Assertion $A :$ Improved varieties with genetic variations can be obtained through plant breeding.
Reason $R :$ The main objectives of plant breeding are the same as those of animal breeding.
Which option is correct for Assertion $A$ and Reason $R$?

The basis of the Green Revolution is:

In the area of plant breeding,it is important not only to preserve the seeds of the variety being cultivated,but also to preserve all its wild relatives. Explain with a suitable example.