英落地处大苹果栽培北限。1月份平均气温为-11.6℃,无霜期165天。生产上为了发展新品种,1983～1989年用高接换头方法栽培红富士苹果树21万株,占苹果幼树总株数的25%。由于富士苹果果实生育期长,果实采收期偏晚,在早霜年份,为防止果实受冻,往往提早收获,致使果实着色差、影响其商品价值。因此,我们于1991年秋在富士秋梢萌发后进行喷施多效唑试验,现将结果报告如下。试验在中腰村红旗山园进行。高接树为1991年长富2,枝龄8年,砧树国光22年生,基 Yingluo apple cultivation north limit. January average temperature of -11.6 ℃, frost-free period of 165 days. In order to develop new varieties, from 1983 to 1989, 210,000 Red Fuji apple trees were cultivated with high interchangeable heads, accounting for 25% of the total number of young apple trees. As Fuji apple fruit growth period, fruit harvest is late, early frost years, in order to prevent the fruit from freezing, often early harvest, resulting in poor coloring of the fruit, affecting the value of their goods. Therefore, we sprayed paclobutrazol test after germination in the fall of 1991 in Fuji, and the results are reported as follows. The experiment was carried out in Hongqi Mountain Garden, Zhonglu Village. Takatsuki tree 1991 for the rich 2, 8 years old, anvil tree Guoguang 22-year-old, base