Varietal purity is checked by

Roguing is performed to

Fully opened blossoms in apple may be killed at temperature below

Aquacaps are used for

A vertical marketing system is:

Which of these is included in the mental process of acceptance or rejection of a new product?

Control of weeds by weedicides in linseed is__

Tomato originated in:

Which of the following fertiliser is both in ammonium and nitrate form?

The root disease “club root” is caused by