Which of the following was the first B vitamin

For determination of soil microbial biomass, carbon extracting agent used is

Fusarium wilt disease in gram is mainly caused by

Which type of parthenocarpy is observed in Banana? 

Which cotton species is recognized as "American cotton" or "Upland cotton" and has an allelotetraploid chromosome number?

What is opportunity cost ?

Epipyropes melanoleuca is a parasitoid of

Diamond Back Moth (DBM) is a specific insect of which crop? 

The ratio between C and N crop residue generally ranges between __ ?

A plan of action for a business is known as a:

The variety of sugarcane which has the ability of ratooning is