High Yielding Varieties

Breeding that led to the development of several high yeilding varieties resistance to water streess is

High milk yielding varieties of cows are obtained by :

High milk yielding varieties of cows are obtained by

Assertion: High yielding variety of rice was produced in India by introduction of dwarfing genes called Dee-goo-woo-gen from Taiwan. Reason: High yielding variety of wheat was produced from dwarfing genes of Norin-10 from Japan in India.

High tyielding variety of maize is a:

Wich pest attacked the high-yielding verieties of rice a few years ago ?