The part of the Red Sander tree is utilized for medicinal purposes is?

Yellow vein mosaic disease of okra is a viral disease. 

Which of the following insects spreads the disease?

Which is the precursor of ethylene?

Roots absorb water from soil:

Post harvest treatment used in Cut flowers to prevent the spoilage by removing field heat is ___

In which crop de suckering is carried out?

Keynes' is associated with

Which of the following insect is responsible for the stridulating sound?

Idioscopus niveosparsus is pest of:

The World Meteorological Day is held annually on____