论文部分内容阅读
杂种优势的利用是提高农作物产量的有效途径之一。但强优势杂交种的获得一般都是在田间组配大量杂交组合与多年产量比较的基础上才能获得。因此人们都希望找到一些有效的生理、生化指标来予测亲本组合的杂种优势以缩短选育良种的年限和减轻工作量。1966年美国McDaniel等人提出用线粒体互补法来予测杂种优势(即:能产生杂种优势的两个亲本的
The utilization of heterosis is one of the effective ways to increase crop yield. However, access to strong predominant hybrids is generally obtained on the basis of a large number of cross combinations in the field with years of production. Therefore, people all hope to find some effective physiological and biochemical indexes to determine the heterosis of parents to shorten the life span and reduce workload. In 1966, McDaniel et al proposed the use of mitochondrial complementarity to predict heterosis (ie, the two parents that can produce heterosis