Semi-dwarf rice varieties were introduced in India in

State the two sources of semi=dwarf rice varieties introduced in India.

Semi-dwarf varieties were introduced in rice.This was made possible by the presence of dwarrfing gene in rice.Name this dwarfing gene.

Semi-dwarf rice varieties were derived from:

Semi-dwarf rice varieties were derived from :-

Name the two semi-dwarf varieties of wheat introduced into all wheat growing places of India.

Name the two semi-dwarf varieties of wheat introduced into all wheat growing places of India.

Improved rice variety IR-8 has been introduced in India from: