[1]朱灿灿,田亚玲,曹福亮*,等.干旱胁迫对银杏叶类黄酮年动态变化的影响[J].林业工程学报,2010,24(04):67-71.
　ZHU Can can,TIAN Ya ling,CAO Fu liang,et al.Effects of drought stress on annual dynamic change of flavonoid contents in Ginkgo biloba leaves[J].Journal of Forestry Engineering,2010,24(04):67-71.
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干旱胁迫对银杏叶类黄酮年动态变化的影响 ()
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《林业工程学报》[ISSN:2096-1359/CN:32-1862/S]

卷:
24
期数:
2010年04期
页码:
67-71
栏目:
应用研究
出版日期:
2010-08-25

文章信息/Info

Title:
Effects of drought stress on annual dynamic change of flavonoid contents in Ginkgo biloba leaves
作者:
朱灿灿; 田亚玲; 曹福亮*; 汪贵斌
（南京林业大学森林资源与环境学院，南京210037）
Author(s):
ZHU Cancan;  TIAN Yaling;  CAO Fuliang;  WANG Guibin
College of Forest Resources and Environment, Nanjing Forestry University, 210037 Nanjing, China
关键词:
银杏; 干旱胁迫; 黄酮
Keywords:
Ginkgo biloba L.;  drought stress;  flavonoid
摘要:
以2年生银杏盆栽实生苗为研究材料，通过人工模拟干旱胁迫环境，探索4个干旱胁迫（土壤含水量分别为田间持水量的75%～80%、55%～60%、40%～45%和30%～35%）对银杏叶黄酮类物质及其季节变化的影响。结果表明：干旱胁迫下，生长季节不同，银杏叶内槲皮素、山柰酚、异鼠李素以及总黄酮含量具有显著差异，4月份萌芽初期和7月初，黄酮类物质含量处于较高水平。适度干旱可以促进银杏黄酮类物质的合成，尤其中度干旱，即土壤相对含水量为田间持水量40%～45%时，有利于叶内黄酮类物质的合成。考虑到叶产量、叶黄酮含量以及采叶与采时的关系等，在实际生产中控制土壤相对含水量达到中度干旱水平，并于7月初及时采收叶片提取黄酮类物质，可以提高黄酮类物质得率，在生产实践中应用。
Abstract:
The effects of drought stress on flavonoid contents of Ginkgo biloba grown in pots at 4 soil moisture levels under greenhouse conditions were investigated. The results showed that there were significant differences in the contents of quercetin, kaempferol, isorhamnetin and total flavonoids between different growing seasons. In April (the leaf spreading stage) and early in July, the contents of flavonoid were the highest level throughout the year. Moderate drought stress (soil water contents were 40%~45% of field capacity) could promote the synthesis of flavonoids in leaves. Therefore, controlling soil water content at moderate level (relative water content, 40%~45%) and harvest leaves in July would be better managements for obtaining more flavonoids in practical.

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更新日期/Last Update: 2011-01-19