| 摘要: |
| 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。 |
| 关键词: 水稻品种 回归系数 变异系数 适应性 水稻生育期 感光性 变异率 感温性 营养生长期 光温生态 |
| DOI： |
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| A STUDY OF THE RELATIONSHIP BETWEEN DAYS TO HEADING AND PHOTOPERIOD SENSITIVITY,THERMO SENSITIVITY,BASIC VEGETATIVE PHASE IN RICE VARIETIES |
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| Abstract: |
| The relationship between days to heading and photoperiod sensiti- vity(PS),thermo sensitivity(TS),basic vegetative phase(BVP)was studied in rice varieties by the method of regression analysis.The results are that the stronger the PS acts,the more the days to heading, and the greater the variation of the growth duration.But the longer the BVP presents,the more the days to heading,and the less the variation of the growth duration.It was the same tendency in TS that like BVP,two basic law Iaws are as follows,1... |
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