Green manures are prepared from

Semi-dwarf wheat was developed at

Semi-dwarf wheat was first developed by......

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 ........$(iv)$ .

Which of the following genes,when transferred from wild species to cultivated crops,are considered beneficial for hybridization?

In maize,hybrid vigour is exploited by