长期以来,水稻育种工作者,迫切希望早期判断杂交组合的优劣,以便及早淘汰不良组合,集中力量研究有希望的杂交组合,这是水稻育种的一个关键性问题,因此,我们用了五个品种(品系),按双列式杂(diaud cross)的要求,配了10个正交组合,以研究第一代的优势,为早期淘汰不良组合提供参考。 For a long time, rice breeding workers are eager to judge the pros and cons of early hybridization in order to eliminate bad combinations as soon as possible and focus on promising hybrids. This is a key issue for rice breeding. Therefore, we used five Varieties (strains) were allocated 10 orthogonal combinations according to the requirements of diaud cross to study the advantages of the first generation and provide a reference for the early elimination of undesirable combinations.