Analysis of Combining Abilities and Heterosis in Agriculture

Abstract

More than three billion people, or half the world's population, rely heavily on rice as their primary source of nutrition. Thirty Asian nations, 28 American states, 41 African states, 11 European states, and 4 oceanic states grow it. Worldwide, rice is grown on around 163.46 million hectares, yielding about 718.35 million tonnes per year at an average productivity of 4.39 tonnes per hectare. India's 42.6 million hectares of rice field’s account for 21.24 percent of global rice output, and its 152.6 million metric tonnes of rice are second only to China's 206.09 million metric tonnes, according to India's average productivity of 3.59 tonnes per hectare.  This study examines the role of heterosis and combining talents in agriculture.