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Visual aid of communication includes which of the following?

What is the term used to describe interactions involving plants, microbes, and other microorganisms?

Which one of the following is mass approach in extension and communication?

 By which of the following family tree is represented?

The ‘Training & Visit System’, a scheme designed by Daniel Benor, was initially piloted in which country?

  White bud of maize is due to:

Which one of the following project was started in the year 1948?

What percentage of the world's cotton area does India have under cultivation?

Bio-control of Parthenium is

 Safflower is which season crop?