A) 2
B) 4
C) 8
D) 11
Correct Answer: D
Solution :
Nikolai Ivanovitch Vavilov (1926) proposed different centres of origin for various crop plants on two criteria (i) Occurrence of wild relatives. (ii) Occurrence of maximum variations in the crop. They are 11 in number.You need to login to perform this action.
You will be redirected in
3 sec