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作者用 KOH 扩散法测定了不同水稻品种及其杂交后代的糊化温度反应。结果表明:品种间存在着明显的差异;在用它们作亲本的杂交组合中,除了(高×高),(低×低)组合未发现明显分离外,其余组合均有不同程度的分离,且分离情况复杂。多数组合中籽粒类型分布呈双峰曲线;组合间分离比差异甚大,有3:1,15:1,9:7,12:3:1之分,经 X~2测定,X~2值均小于P_(0.01)。有少数组合籽粒类型分布呈单峰曲线。此外,在分离的组合中,后代籽粒的反应往往偏向于双亲中糊化温度高的亲本类型。由此可见,水稻糊化温度的遗传是个复杂的问题,控制这一性状的基因,不仅有数目多少,而且有基因间相互作用的因素。
The authors used the KOH diffusion method to determine the gelatinization temperature response of different rice varieties and their hybrid progeny. The results showed that there was a significant difference among cultivars. In the hybrid combinations using them as parents, except for (high × high), (low × low) combinations were not found significant separation, the remaining combinations were different degrees of separation, and Separation is complicated. In most combinations, the grain type distribution showed a bimodal curve; the separation ratio was very different among the combinations, with the ratios of 3: 1, 15: 1, 9: 7 and 12: 3: 1, Less than P_ (0.01). A small number of combinations of grain type distribution showed a single peak curve. In addition, in isolated combinations, offspring tend to have a more biased response to parental types with a higher gelatinization temperature in their parents. Thus, the inheritance of rice gelatinization temperature is a complex issue. The genes controlling this trait not only have the number but also the inter-gene interactions.