In wheat,solid stems lead to non-preference by

Improved method of grafting is:

In crop improvement programs,haploid varieties are important because they .

India's wheat yield revolution in the $1960s$ was possible primarily due to

Fill in the blanks in the following statements ($A$ to $C$):
$(A)$ The capacity to generate a whole plant from any cell/explant is called ......$(i)$ .......
$(B)$ The transfer of resistance genes occurs through ........$(ii)$ ........ . Subsequently,......$(iii)$ ....... occurs between the target and the source plant.
$(C)$ The rice variety $IR8$ was developed in the country ........$(iv)$ .

The entire collection having all the diverse alleles for all genes in a given crop is called