Which radiations are primarily used to induce mutations in crops?

Explain the methods of breeding for disease resistance.

$A$ scion is grafted to stock. The quality of fruits produced will be determined by the genotype of:

Select the option that represents the correct sequence of steps for breeding a genetically diverse crop variety:
$(i)$ Selection and testing of superior recombinants
$(ii)$ Evaluation and selection of parents
$(iii)$ Collection of variability
$(iv)$ Testing,release,and commercialization of new cultivars
$(v)$ Cross-hybridization among the selected parents

Dwarf wheats were developed by

Which of the following pests are not attracted to cotton varieties with smooth leaves and nectarless flowers?