Amount of increase of rice production in china due to the gene revolution?

It was about 12-14% increase in production of rice took place as a result of green revolution in china. green revolution was a dramatic increase in the production of grains like rice and wheat during the 1960s. it happened due to semi dwar varietis of rice and wheat. Taichung-Native 1 was a rice variety contributed much to the green revolution.

It's either -limiting factors or -scarce resources but i'd go with my first answer since the food and water are abundant they really aren't scarce