| 糯米糍荔枝坐果与内源激素的关系 |
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| 引用本文： | 向旭,张展微.糯米糍荔枝坐果与内源激素的关系[J].园艺学报,1994,21(1):1-6. |
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| 作者姓名： | 向旭 张展微 |
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| 作者单位： | 广东省农业科学院果树研究所 |
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| 摘 要： | 授 粉爱精是糯米糍荔枝花后子房正常坐果的刺激因子，授粉后子房ＡＢＡ从开花当天的最高水平急剧下降，而ＩＡＡ、ＧＡａ和ＣＴＫ水平都升高，并在花后１２天达最。地果期内源ＡＢＡ水平有３次明显高峰，分别出现在３次生理落果高峰前１周左右；内源１ＡＡ和ＧＡｓ则有２次明显较高水平，分别与果皮和假种皮的迅速生长有关；而ＣＴＫ在胚败育前 保持高水平，胚败育后才降至较低水平。荔枝果实中ＧＡｓ类有ＧＡ３、ＧＡ４＋７、ＧＡ
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| 关 键 词： | 糯米糍荔枝 坐果 内源激素 荔枝 |
A Study of Fruit-set Physiology in Relation to Endogenous Hormones in Litchi(Litchi Chinensis Sonn. Nuomici) Fruits |
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| Xiang Xu, Zhang Zhanwei, Qiu Yanping, Yuan Peiyuan and Wang Biqing.A Study of Fruit-set Physiology in Relation to Endogenous Hormones in Litchi(Litchi Chinensis Sonn. Nuomici) Fruits[J].Acta Horticulturae Sinica,1994,21(1):1-6. |
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| Authors: | Xiang Xu Zhang Zhanwei Qiu Yanping Yuan Peiyuan and Wang Biqing |
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| Abstract: | Contents of endogenous hormones in Litchi (Litchi chinensis Sonn. cv. Nuomici) fruits were determined during fruit development. The results revealed that pollination and fertillization stimulated the increase of CTK. IAA and GAs levels and decrease of ABA level in ovary after anthesis, which were the basis for fruit-setting. There were three peaks of ABA level which preceded separately the second to the fourth peak of physiological fruit drop, and two higher levels of IAA and GAs which were correlated with the rapid growth of pericarp and aril respectively during fruit development. The CTK level maintained higher before embryo abortion, after which it decreased.GA3, GA(4 7), GA5, GA9, ZT, ZR, diHZ, and diHZR.were also determined in litchi fruits, which changed greatly during fruit-setting period. The intense changes of Gas and CTK composition and contents, which was coincident with the endosperm disintegration and embryo abortion, seemed to be related to the continuous physiological fruit drop. |
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| Keywords: | Nuomici Litchi Fruit-set physiology Endogenous hormone |
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