通径分析表明，聊城地区８月份日照时数对棉花单株铃数的直接影响最大（ｄｙ．ｘ４＝０５２６５）；７月份降水对棉花单株铃数的直接影响也很大（ｄｙ．ｘ３＝０４０５５）；８月份降水（ｄｙ．ｘ５＝０２８１１），７月份平均气温（ｄｙ．ｘ２＝０１４２８）对棉花单株铃数产生的直接影响，８月份日照时数通过８月份降水（ｄｙ．ｘ４ｘ５＝０２７１７），７月份平均气温通过８月份日照时数（ｄｙ．ｘ２ｘ４＝０１９７３），６月份平均气温通过８月份降水（ｄｙ．ｘ４ｘ５＝０１４９３）对棉花单株铃数的间接影响都较大。 The path analysis showed that the direct sunlight influence on the number of bolls of cotton per plant in Liaocheng in August was the largest (dy.x4 = 05265). The direct impact of precipitation in July on cotton bolls per plant was also significant (dy. x3 = 04055); August precipitation (dy.x5 = 02811), average temperature in July (dy.x2 = 01428) had a direct effect on the number of bolls per plant, and the sunshine duration in August passed August precipitation (dy.x4x5 = 02717), the average temperature in July by the sunshine hours in August (dy.x2x4 = 01973), the average temperature in June by August precipitation (dy.x4x5 = 0  1493) Indirect impact on cotton bolls is greater.