Study on the Water Absorbing and Losing Characteristics of the Seedling of Ailanthus altissima
Cao Bing, Hao Yongzhen (School of Agriculture, Ningxia University, Yinchuan 750021,China)
Using one-year-old seedling of the tree of heaven as the material, this paper studied the water absorbing and losing characteristics of the seedling. The result showed that the average water absorbing quantity of the seedling was 3.74g and the water content percentage was increased by 5%. There was a significant correlation between the water absorbing quantity and seedling’s weight. Under out door condition, the total water losing quantity was about 10.38g, and the water losing quantity during first 26 hours accounted for about 50%. There was an exponential function relation between water losing percentage and the losing time. The electric capacity was related to the water content of the seedling.