干旱条件下 ,两个甘蔗品种剥叶不砍种处理的出苗率、成茎率、有效茎数高于剥叶砍种浸种的 ,而且具有较高的净光合强度、蒸腾强度、胞间 CO2 浓度、气孔导度和甘蔗蔗糖分。在春季雨水较多的 1998年 ,新台糖 16号剥叶砍种浸种消毒处理的甘蔗产量最高 ;在春季连续干旱的 1999年 ,桂糖 11号剥叶不砍种的甘蔗产量是两个品种 4种砍种处理中最高的 ,增产幅度 11.94 % - 69.86%。 Under drought conditions, the emergence rate, the rate of stalks and the number of effective stems of the two sugarcane varieties were higher than that of the stripped leaves, and had higher net photosynthetic intensity, transpiration intensity, intercellular CO2 concentration , Stomatal conductance and cane sugar content. In 1998, with more rain in spring, the sugar cane yield of Xintai sugar No. 16 was the highest, and the output of sugarcane which was not cut down in Guitang 11 leaf rowed in 1999 was two varieties 4 The kinds of cutting the highest in the treatment, the rate of increase of 11.94% - 69.86%.