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利用杂种第一代的优势,是提高农作物产量的有效途径。当前农作物优势杂种的选育,是在数年田间试验的基础上通过大量组合得到的。为了克服选择亲本上的盲目性,人们正努力从各个方面探索预测杂种优势的方法和依据。十多年来,关于线粒体互补作用的研究甚多,但用于实践预测杂种优势,还存在着一定的距离。最近,我们研究了杂种双亲叶绿体的光化学活性,发现杂种双亲叶绿体存在着互补作用,而且互补效率的大小与杂种的优势程度有
Taking advantage of the first generation of hybrids is an effective way to increase crop yields. The breeding of the current crop superior hybrids is based on years of field trials based on a large number of combinations obtained. In order to overcome blindness in selecting parents, efforts are being made to explore ways and basis for predicting heterosis from all aspects. For more than a decade, there have been many studies on mitochondrial complementarity, but there are still some distances for the practical prediction of heterosis. Recently, we studied the photochemical activity of the chloroplasts of the parents of hybrids and found that there is a complementary effect between the parents of the hybrid parents and the degree of complementarity and the degree of heterosis