我国同源四倍体水稻育种研究近十几年来的主要进展是:1.把四倍体选系中最好的单株培育成无性系,它可以反映单株的产量水平,从而展示四倍体的增产潜力。2.结实低而不稳是四倍体水稻育种遇到的重要障碍。近年观察试验表明,无论四倍体原种或杂种。其上下代结实率一般都成显著正相关,这说明影响结实率的主要因素是遗传因素从而从理论上肯定了株选、系选的效果。3.1983年测产前三名与1970年测产前三名相比、十几年来亩产平均提高了165公斤,株高平均下降近40cm。优良株系开始突破每亩500公斤,跨进生产试种的门槛。 Major advances in the research of autotetraploid rice breeding in China over the past decade are: 1. The best single plant in the tetraploid selection line is bred as clones, which can reflect the level of yield per plant and thus show a quadruple Body production potential. 2. Low and unstable low stubble is an important obstacle to tetraploid rice breeding. Observations in recent years showed that tetraploid hybrids or hybrids. The results showed that there was a significant positive correlation between the seed-setting rate of the upper and the lower generation, which indicated that the main factors influencing the seed-setting rate were the genetic factors, which affirmed the effect of strain selection and selection in theory. 3. In 1983, the top three in terms of measured output increased by an average of 165 kilograms per mu over the past 10 years and the average plant height dropped by nearly 40 cm compared with the top three measured in 1970. Fine lines began to break through 500 kilograms per mu, into the threshold of production trials.