नीचे दिए गए शब्दों का

_______is the most widely used chemical for promoting seed germination.

A dose of herbicide which inhibits growth of test plants by 50% is

Match the following with correct answer by using the codes given below.

Given below are two statements:

Statement I: Somatic cells of all the organisms divide through mitosis.

Given below are two statements, one is labelled as Assertion A and other is labelled as Reason R

Which one of the following Soil crusting is a problem?

In insect population which have only one generation a year, the shape of population growth curve is:

At what time groundnut plant is self pollinated? 

Which one is not a clay mineral?

Surge Irrigation is the modification of which type of irrigation?