| Comparison of endogenous hormone of Cabernet Sauvignon ＆ Pinot Noir under different water stress |
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| DOI：10.7606/j.issn.1000-7601.2008.03.29 |
| Key Words: grapevine water stress endogenous hormone |
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| Abstract: |
| In order to analyze the law of the changes of Endogenous Hormone of Cabernet Sauvignon ＆ Pinot Noir under water stress．Under water stress condition the content of ABA、GA、IAA of Cabernet Sauvignon ＆ Pinot Noir were determined by using HPLC．With comparison of natural irrigation the results indicated as below：Water stress could increase ABA content of Cabernet Sauvignon leaf and decrease GA content whereas the content of IAA shows decreasing firstly and then increasing decreasing finally．During the course of water stress the content of ABA shows drops firstly and then rises in the Pinot Noir when GA and IAA decreased． What’s more the increasing line of ABA ABA／GA in Cabernet Sauvignon is higher than that in the Pinot Noir．In conclusion the nature of resistance against drought in Cabernet Sauvignon is higher than that in the Pinot Noir. |