杏雌蕊败育与主要气象因子的关系分析

对杏雌蕊败育与主要气象因子关系的研究表明:杏雌蕊败育率与上年8月的降水量穴x2雪及休眠期低于7.2℃的时数(x13)呈显著的负相关;与休眠期的绝对最低温有正相关趋势,但未达到显著水平;与上年7月、9月的降水量、上年11月、12月的绝对低温及当年2月、3月的最大温差等关系都较小。2个杏品种串枝红与鸡蛋杏的雌蕊败育率与气象因子的逐步回归方程分别为1=207.307-0.468x2-0.0395x13;2=148.103-0.333x2-0.0282x13;由于本试验数据来自干旱的内陆地区山西,可能研究结果不一定适合降水较多的其他地区。

Study on the correlation between apricot pistil abortion and meteorological factors

Two apricot cultivars, Chuanzhihong and Jidanxing were used as materials for studying the correlation between apricot pistil abortion and meteorological factors. Results showed that the pistil abortion rate had a remarkable negative correlation with the precipitation (x2) in August the year before and hours below 7.2℃ during the dormant period (x13);it had a trend of positive correlation with the lowest temperature during the dormant period, and had no correlation with the precipitation in July and September, the lowest temperature in last year's November and December, and the severe fluctuation of temperature in February and March the current year. The equation of stepwise regression of these 2 apricot cultivars were respectively as follows: 1=207.307-0.468x2-0.0395x13; 2=148.103-0.3334x2-0.0282x13.