High levels of aspartic acid,low nitrogen and sugar content in maize plants prevent the attack by . . . . . . .

Who is known as the father of the Green Revolution?

Consider the following four measures $(1-4)$ that could be taken to successfully grow chickpea in an area where bacterial blight disease is common.
$(1)$ Spray with Bordeaux mixture
$(2)$ Control of the insect vector of the disease pathogen
$(3)$ Use of only disease-free seeds
$(4)$ Use of varieties resistant to the disease
Which two of the above measures can control the disease?

Choose the correct option for disease-resistant plants.

Which radiations are primarily used to induce mutations in crops?

The hybrids are generally found to be superior to their parents; this is because of: