21.
Who is regarded as the father of Modern Indian phytopathology?

22.
How much farmyard manure is required for obtaining 60 kg nitrogen for a crop?

23.
A specific function of light in the process of photosynthesis is

24.
The contribution of fertilisers to increase in food production is

25.
Karnal bunt of wheat is discovered in

26.
The Downey mildew of bajra is caused by

27.
A plant pollinated by bats is

28.
Photorespiration is characteristic of

29.
Myco virus was 1st reported on

30.
Fishy smell found in wheat field infected with karnal bunt is because of