四、配合力(Combining ability) 配合力的概念是在杂种优势利用过程中发展起来的。要获得优良的杂交组合,首先要有配合良好的亲本,传统的经验方法是进行大量的交配组合试验,但产生超优、超标组合的机率很低。此外,在育种实践中发现,亲本的表现与杂交后代的表现不一定有直接的关系,有些亲本表现很好,而后代却并不理想;有些亲本并不很优越,但杂种后代却表现明显的优势。如北京早红番茄、黑叶小平头甘蓝, Fourth, Combining ability (Combining ability) The concept of combining ability is developed in the utilization of heterosis. To get a good hybrid combination, we must first have a good parent, the traditional empirical method is to conduct a large number of mating combination test, but produce superb, low probability of combination is too low. In addition, in breeding practice, it is found that there is not necessarily a direct relationship between the performance of parents and the performance of hybrid offspring. Some of the parents performed well while the offspring were not ideal. Some of the parents were not superior, but the offspring showed obvious Advantage. Such as Beijing early red tomato, black kale,