Which radiations are primarily used to induce mutations in crops?

'Parbhani Kranti' is associated with .........

Discuss the two main limitations of plant hybridization programme.

Methods of breeding for acquiring disease resistance are:
$I$. Conventional breeding techniques
$II$. Mutation breeding
$III$. Radiation breeding
Choose the correct option.

$G. hirsutum$ is

Arrange the following steps in the correct sequence for breeding a genetically diverse crop variety:
$I -$ Cross-hybridization among the selected parents
$II -$ Testing, release, and commercialization of new cultivars
$III -$ Selection and testing of superior recombinants
$IV -$ Collection of variability
$V -$ Evaluation and selection of parents