Which Indian state leads in cotton production?

Which of the following is used to control Parthenium hysterophoris?

Which of the following green manure crop shows stem nodulation?

Asepsis means:

Classification of De Candole is based on

____is a breeding process where unrelated animals of the same species but different breeds are mated.

The chemical  which is used to attract the sexually mature insects for mating purpose is____ 

Endosperm like tissue (2n) in seed developing from nucellus is:

Which mango variety yields on an average 16 t/ha and about 1600 plants

can be accommodated in one hectare

Which of the following pair is not correctly matched?