期刊论文

Cao, Y.

中文

应用生态学报

1001-9332

2004

15

7

1143-1147

湖南省科技厅重点资助项目 （ 0 3JZY3 0 2 0 ）；

本校为第一机构

对全年各月虎杖材料中白藜芦醇含量,及其Ca、Cu、Fe、K、Mg、Na、Zn 8种矿质元素积累进行检测,结合气象因子动态变化,采用主成分分析法,研究了不同季节虎杖白藜芦醇含量动态变化与其矿质元素、气象因子动态变化的关系.结果表明,Cu与Fe,Mg与K、Zn,Ca与月日照时数,K与Zn相关系数分别为0.812、0.871、0.793、0.602、0.729,呈极显著正相关;Cu、Mn与月平均气温,Fe与K相关系数分别为-0.738、-0.712、-0.766,呈极显著负相关;Cu与白藜芦醇含量呈显著负相关.找出了影响虎杖白藜芦醇含量动态变化的5个主成分,其中"酶促反应促进性矿质营养因子","高温、强照射气象因子"的贡献率分别为35.539%、33.358%,合计...

By determining monthly the content of resveratrol and eight mineral elements (Ca, Cu, Fe, K, Mg, Na, Zn, Mn) in the rootstalk of Polygonum cuspidatum, by considering the dynamic meteorological factors and by analyzing the principal components, we are investigating the dynamic relationship laws among mineral elements, meteorological factors and the content of resveratrol in Polygonum cuspidatum rootstalk in varied seasons. The results indicated that the correlation coefficient between Cu and Fe; between Mg and K; between Mg and Zn; between K and Zn; between Ca and average sunlight hours per mon...