Who was the american plant breeder responsible for dramatically improving crop yields in the 1960s? his efforts to teach mexican farmers how to be more productive marked the beginning of the green revolution?

The American plant breeder responsible for dramatically improving crop yields in the 1960s was Norman Borlaug.

Norman Ernest Borlaug was an agronomist, geneticist, phytopathologist, humanist, and is considered by many the father of modern agriculture and the green revolution, he has been called "the man who saved a billion lives." His efforts in The 1960s to introduce hybrid seeds to agricultural production in Mexico, Pakistan and India caused a remarkable increase in agricultural productivity, and some consider it responsible for having saved more than 1 billion human lives.

In 1944 he went to work in Mexico as a phytopathologist. Then in 1945, he moved to the Mexican state of Sonora and specifically to the Yaqui Valley, where he studied wheat, rusts and agronomic practices.

After Mexico reached self-sufficiency in wheat, in 1956, the group of scientists that participated with him in Sonora obtained an achievement of enormous importance: the development of wheat dwarf varieties, high yield, wide adaptation, resistant to diseases and high industrial quality, planted for the first time in 1962. With these varieties, Mexico markedly increased its production. In a short time, many countries like India, Pakistan, Turkey, Tunisia, Spain, Argentina and China, benefited from the new varieties and technology developed in Mexico.

c.) biotic: snails; abiotic: temperature climate