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本文分别对水稻的感光性、基础营养生长期、感温性与出穗日数的关系用回归分析法作了研究。感光性愈强,出穗日数愈多,出穗日数的变异率愈大。基础营养生长期愈长,出穗日数愈多,但出穗日数的变异率愈小。感温性对出穗日数及其变异率的影响居中。在复杂的水稻生育期现象中遵循以下两条法则:1.两性一期的级别愈高,平均生育期愈长,品种的适应范围愈窄;2.基础营养生长期愈长,生育期愈稳定,感光性和感温性愈强,生育期愈不稳定。
In this paper, the relationship between rice sensitivities, basal vegetative growth period, temperature sensitivities and heading days were studied by regression analysis. The more sensitive to light, the more the number of ears out, the greater the rate of variation of the number of ears. The longer the basal vegetative growth period, the more the number of ears per day, but the less the rate of variation of the days of ear emergence. The effect of temperature sensitivity on heading days and its mutation rate was intermediate. The following two rules are followed in the complicated growth stage of rice: 1. The higher the level of the first stage of the sexes, the longer the average growth stage, the narrower the range of adaptability of the varieties; 2. The longer the basic vegetative stage and the more stable the growing stage , The more sensitive and temperature sensitive, the more unstable growth period.