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Effect of Disastrous Climate on Tea Trees
Author(s): TIAN Yonghui, LIANG Yuanfa, WEI Jie, ZHOU Guolan
Pages: 20-
23
Year: 2003
Issue:
2
Journal: GUIZHOU AGRICULTURAL SCIENCES
Keyword: 灾难性; 气候; 茶树; 生理生化;
Abstract: 采用定点定位的方法,对干旱、冻害、冰雹等灾害性气候对茶树影响进行了研究.结果表明:灾害性干旱气候影响茶树的正常生理代谢,茶树的百芽重、叶绿素含量等生理指标较正常年份下降70.4%~126.9%,而冰雹、干旱、冻害对茶树生物学性状的影响中,纯茶园与人工生态茶园比较新梢损伤率为22.5%~82.5%,嫩梢含水量亏缺为4.7%~6.0%,枯死半枯死叶片数增加2.7~2.9倍.嫩梢含水量减少,从而影响茶树生化成分,造成茶叶减产以及茶叶品质下降.
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