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2007年在凉山州海拔1 600,1 800,2 100,2 500 m的4个地点,进行各5期大春马铃薯发育期的地理分期播种试验,以试验资料为基础,详细研究了影响凉山州大春马铃薯各生育阶段发育速度的主要因子及其关系,建立了从播种-出苗、播种-开花和播种-成熟天数的气候生态综合模型.结果表明:各发育阶段的天数与温度、播期呈现显著的负相关关系,随着温度升高和播期推迟,各发育阶段时间缩短,但温度影响系数在不同试验点不同,与海拔高度具有显著的抛物线特征,降水量对发育期的影响仅表现在播种-出苗阶段.
In 2007, four sowing experiments were conducted on four stages of spring potato development in spring in Liangshan Prefecture at an altitude of 1 600, 1 800, 2 100 and 2 500 m. Based on the experimental data, The main factors and their relations of developmental rate of spring potato in different growth stages were established, and the climatic and ecological model was established from the seeding-emergence, seeding-flowering and sowing-maturing days. The results showed that the days and temperature, sowing date Significant negative correlation, with the increase of temperature and sowing date, the developmental time is shortened, but the temperature influence coefficient is different at different test sites, and has significant parabola characteristics with altitude, and the effect of precipitation on developmental period is only manifested In sowing - emergence stage.