西北林学院学报2011，Vol.26Issue(3)：17-20,4.
不同年龄沙地柏生理生态特性差异研究
Comparison on Several Physiological Characteristics in Sabina vulgaris Seedlings of Different Ages
摘要
Abstract
In this paper, under normal soil water conditions, several eco-physiological indicators were investigated on Sabina vulgaris seedlings with three different ages, 1-year, 3-year and 5-year. The results showed that: leaf water holding ability, membrane permeability, water use efficiency and carboxylation efficiency among groups were significantly different (P＜0.05). With the growth of the seedlings, the leaf water holding ability gradually increased, but membrane permeability and carboxylation efficiency showed a decreasing trend. Instantaneous water use efficiency of 3-year seedlings was the highest. Net photosynthetic rates, transpiration rate, stomatal conductance, and apparent quantum efficiency were similar in all age groups with no significant difference. So under the normal water supply conditions, matter accumulation in the selected three age seedlings did not show manifesting differences.关键词
沙地柏/不同年龄/生理生态Key words
Sabina vulgaris / different age/ eco-physiological characteristic分类
农业科技引用本文复制引用
刘建锋,赵秀莲,江泽平..不同年龄沙地柏生理生态特性差异研究[J].西北林学院学报,2011,26(3):17-20,4.基金项目
国家林业局"948"项目"杂交柏优良种质材料及培育技术的引进"(2006-4-55) （2006-4-55）
