| 低温胁迫下PP_(333)对荔枝IAA、ABA、蒸腾速率和水势的影响 |
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| 引用本文： | 周碧燕,李宇彬,吴楚彬,陈厚彬,杨瑞陶.低温胁迫下PP_(333)对荔枝IAA、ABA、蒸腾速率和水势的影响[J].果树学报,2003,20(2):93-95. |
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| 作者姓名： | 周碧燕 李宇彬 吴楚彬 陈厚彬 杨瑞陶 |
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| 作者单位： | 1. 华南农业大学园艺学院,广东,广州,510642
2. 中国科学院华南植物研究所,广东,广州,510650 |
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| 摘 要： | 利用人工气候室模拟寒潮对荔枝进行低温胁迫处理,研究低温胁迫下多效唑对荔枝内源激素和水分状况的影响,结果表明,PP333处理明显提高了低温下的荔枝叶片脱落酸(ABA)水平,降低了吲哚乙酸(IAA)水平,叶片ABA/IAA处于高水平,并使叶片蒸腾速率(Tr)减弱,水势升高,叶片电解质渗出率减少。经受极端低温后,PP333处理的荔枝仍有较高的成花率。
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| 关 键 词： | 荔枝 低温 PP333 水分 ABA IAA |
| 文章编号： | 1009-9980-(2003)-02-093-03 |
| 修稿时间： | 2002年6月8日 |
Effect of PP333 on Endogenous Hormone and Water Condition of Litchi in Low Temperature |
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| Zhou Biyan ,Li Yubin ,Wu Chubin ,Chen Houbin ,and Yang Ruitao.Effect of PP333 on Endogenous Hormone and Water Condition of Litchi in Low Temperature[J].Journal of Fruit Science,2003,20(2):93-95. |
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| Authors: | Zhou Biyan Li Yubin Wu Chubin Chen Houbin and Yang Ruitao |
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| Institution: | Zhou Biyan 1,Li Yubin 1,Wu Chubin 2,Chen Houbin 1,and Yang Ruitao 1 |
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| Abstract: | In order to study the effect of paclobutrazol(PP 333 )on endogenous hormone and water condition of litchi in low tem-perature,litchi trees were treated with low temperature in controlled environment chamber for imitating cold wave.The results showed that PP 333 treatment raised abscisic acid(ABA)levels and reduced indole-3acetic acid(IAA)levels of litchi leaves in low temperature.Hence the value of ABA/IAA was higher than that of control.Also,transpiration rate(Tr )decreased and leaf water potential increased,electrolytic leakage decreased when treated with PP 333 .Trees sprayed with PP 333 remained a relatively high flower formation rate though they were used to grow in extremely low temperature. |
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| Keywords: | Litchi Low temperature PP 333 Water IAA ABA |
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