Select the option that is related to the third

Which among the following is a major constraint in the rice–wheat system of Indo-Gangetic plains affecting long-term sustainability?

Common polyphagus crop pests are:

A. Desert locust, Schistocerca gregaria (Forskal)

When there is crossing over between centromere and gene under consideration, the segregation of that gene takes place during:

What is the wild species of sugarcane?

Which insect order among the following is least likely to be found in association with plants?

Which one of the following crop is otherwise known as Kenaf?

Black cotton soil is best for cotton cultivation because of

Honey bees often sting

Which of the following is NOT correctly matched?

Invisible drought occurs when