植物研究2011，Vol.31Issue(2)：188-192,5.
青杨雌雄幼苗对主要矿质元素的吸收与分配差异
Differences in Absorption and Distribution of Main Mineral Elements Between Male and Female Populus cathayana Seedlings
摘要
Abstract
In the present experiment, the sex-related absorption and distribution patterns of the main mineral elements (N, P, K, Ca, Mg) were investigated between male and female Populus cathayana seedlings. The results showed that the female individuals exhibited significantly higher total content of P and Ca, but lower total content of K than male individuals. For two sexes, the content of N in leaf was significantly higher than that in root and stem, and the distribution pattern of P, K and Mg content showed that root ＞ stem ＞ leaf, leaf ＞ root ＞stem, and root ＞ leaf ＞ stem, respectively. Meanwhile, the distribution pattern of Ca content showed the tendency of root ＞ stem ＞ leaves in males but the tendency of root ＞ leaf ＞ stem in females. Furthermore, females exhibited significantly higher Ca content in leaf and P content in root, but lower Mg content in root than males. In addition,the ratio patterns of these mineral elements contents were characterized as Ca ＞ N ＞ K ＞ Mg ＞ P in females, but N ＞Ca ＞ K ＞ Mg ＞ P in males. However, in root, stem and leaf of all individuals, it was characterized as Ca ＞ K ＞ N ＞Mg ＞ P, Ca ＞ N ＞ K ＞ P ＞ Mg, N ＞ K ＞ Ca ＞ Mg ＞ P, respectively. Our results suggested that there were sexual differences in mineral elements content and its distribution between male and female P. cathayana seedlings although similar ratio patterns of these elements contents were found in root, stem and leaf for two sexes.关键词
青杨/雌雄异株/矿质元素/性别差异分类
农业科技引用本文复制引用
杨鹏,胥晓..青杨雌雄幼苗对主要矿质元素的吸收与分配差异[J].植物研究,2011,31(2):188-192,5.基金项目
国家自然科学基金项目(30771721) （30771721）
