寒地高产水稻品种性状比较研究

Study on Characters of High Yield Rice Varieties in Cold Area

为了探讨不同类型水稻的产量,以差异较大的不同类型水稻品种、品系作为供试材料,以生产应用品种作对照,进行产量筛选和性状比较研究。结果表明:对照品种株高、叶面积指数、平均单穗重均低于供试高产品系。说明可以通过选择株高适宜、叶面积指数大、单穗重较大、叶龄生长速度快的品种进一步提高水稻单产。

In order to study the yield difference of type rice varieties, different types of rice varieties were used as experimental materials, varieties which were applied in production were used as .check, yield selection and characters comparison were studied. The results showed：the plant height, leaf area index and the average single spike weight of the check were lower than that of the tested high yield varieties. The selection for the varieties which had reasonable plant height, large leaf area index, heavy single spike weight and fast leaf growth rate could improve the rice yield.