Question

What is Green Revolution? Who had contributed to encourage green revolution?

Answer 1

The Green Revolution, or Third Agricultural Revolution, refers to a set of research and the development of technology transfer initiatives occurring between the 1930s and the late 1960s (with prequels in the work of the agrarian geneticist Nazareno Strampelli in the 1920s and 1930s), that increased agricultural production worldwide, particularly in the developing world, beginning most markedly in the late 1960s. The initiatives resulted in the adoption of new technologies, including:

...new, high-yielding varieties(HYVs) of cereals, especially dwarf wheats and rices, in association with chemical fertilizers and agro-chemicals, and with controlled water-supply (usually involving irrigation) and new methods of cultivation, including mechanization. All of these together were seen as a 'package of practices' to supersede 'traditional' technology and to be adopted as a whole......Hope Helps

Answer 2

The Green Revolution in India refers to a period of time when agriculture in India changed to an industrial system due to the adoption of modern methods and technology such as high yielding variety (HYV) seeds, tractors, pump sets, etc. Green revolution was started by Dr.M.S. Swaminathan. The key leadership role played by the Indian agricultural scientist Vehla Swaminathan Banda together with many others including GS Kalkat, earned him the popularly used title 'Father of Green Revolution of India'. The Green Revolution allowed developing countries, like India, to try to overcome poor agricultural productivity. Within India, this started in the early 1960s and led to an increase in food grain production, especially in Punjab, Haryana and Uttar Pradesh during the early phase. The main development was higher-yielding varieties of wheat, for developing rust resistant strains of wheat.