Which of the following crop varieties is resistant to bacterial blight?

The latest trend in plant disease control is:

Which substances are found in double the amount in hybrid maize varieties?

Explain what is meant by biofortification.

Select the correct statement$(s)$:
$(1)$ $IARI$ has released a mustard variety rich in vitamin $C$.
$(2)$ Pusa Sawani variety of Okra is resistant to aphids.
$(3)$ Hairiness of leaves provides resistance to insect pests.
$(4)$ Agriculture accounts for approximately $33\%$ of India's $GDP$ and employs nearly $62\%$ of the population.

Name any five hybrid varieties of crop plants which have been developed in India.