贵州水稻芽期耐寒性种质高频密集区有5片18个县,高抗种质高频密集区有3片5个县。以西北部最稠密,耐寒性种质和高抗种质的频度与海拔和温度相互间呈显著性或极显著性正相关或负相关关系,约有30%左右的抗性种质分布上的差异是由环境因子波动而造成,在低热的局部地区,出现两频度与高寒地区相近的现象,是微地域在其分布上的反应。同时发现地方稻种对低温的抗耐能力。粳型品种强于籼型品种,水稻强于陆稻。 There are 5 counties and 18 counties in high-frequency germplasm with cold-tolerance germplasm at the bud stage of Guizhou, and 3 counties and 5 counties in the high-frequency and high-intensity germplasm of Guizhou. The frequency of the most dense, cold-tolerant germplasm and high resistance to germplasm in the northwestern China was positively or negatively related to altitude and temperature, with about 30% of the distribution of resistant germplasm The difference is caused by the fluctuation of environmental factors. In the low-heat local areas, the phenomenon that the two frequencies are similar to the alpine areas appears and is the reaction of the micro-areas in their distribution. At the same time, local rice varieties were found to have low resistance to cold. Japonica varieties are stronger than indica varieties, rice is stronger than inland rice.