论文部分内容阅读
荷兰果树站于1991年至1992年研究了气温对苹果树新梢和花芽形成的影响。从苗圃中选取的枝条作接穗嫁接在博斯库普(Boskoop)和艾尔思塔(Elstar)一年生M9砧木上培养成嫁接苗,然后把试材分别放在16℃、21℃、26℃和21℃+红光的不同温度下处理。昼夜气温保持相同,土温保持在17℃,空气中水汽分压较低(各处理均为0.4KPa),日长度14小时。7月中旬以后,新梢完全停止生
Dutch fruit trees stood in 1991 to 1992 to study the temperature on apple shoots and flower bud formation. Shoots selected from the nursery were grafted into grafted seedlings on annual M9 stocks in Boskoop and Elstar, and the specimens were then grown at 16 ° C, 21 ° C, 26 ° C and 21 ℃ + red light at different temperatures. Day and night temperatures remain the same, the soil temperature maintained at 17 ℃, the water vapor partial pressure is low (each treatment are 0.4KPa), the length of 14 hours. After mid-July, the new shoot completely stopped