我们采用4个不同蛋白质含量的水稻品种配制了二个杂交组合,进行稻米蛋白质含量的遗传与选择的研究。旨在获得某些重要的遗传参数,为探讨高蛋白质育种的途径和方法,提高选择效率提供依据。研究结果表明:1.稻米蛋白质含量为多基因控制的数量遺传,杂种后代产生广谱遗传变异。2.稻米蛋白质含量的遗传力和相对遗传进度均较高,早期世代的选择是有效的。3.稻米蛋白质含量与株高、抽穗期及粒重相关显著,与其他经济性状相关不明显。另外,根据试验结果就高产高蛋白质含量品种的选育进行了讨论。 We used four different rice varieties with different protein content to prepare two crosses for genetic analysis and selection of rice protein content. Aiming at obtaining some important genetic parameters and providing the basis for exploring ways and methods of high protein breeding and improving selection efficiency. The results showed that: 1. The amount of rice protein content is controlled by the number of multi-genetics, hybrid progenies produce a wide range of genetic variation. 2. The heritability and relative genetic progress of rice protein content are high, the choice of early generation is effective. The protein content of rice was significantly correlated with plant height, heading date and grain weight, but not obvious with other economic traits. In addition, the breeding of high yield and high protein content varieties was discussed based on the test results.