Abstract
Rice is the most important food crop in the world. Major advances have occurred in rice production as a result of the wide-scale adoption of improved rice varieties. However, demand for rice in low-income countries continues to increase because of increases in the population of rice consumers and improvements in living standards. It is estimated that we will have to produce 50% more rice by 2050. To meet this challenge, we need rice varieties with higher yield potential. Several approaches are being employed for developing rice varieties with increased yield potential, such as population improvement, ideotype breeding, heterosis breeding, wide hybridization, genetic engineering, and molecular breeding.
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