| 沙棘不落果原因探讨 |
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| 引用本文： | 张微,张锐.沙棘不落果原因探讨[J].林业科学,1992,28(1):76-79,T001. |
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| 作者姓名： | 张微 张锐 |
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| 作者单位： | 甘肃省科学院生物研究所，甘肃省科学院生物研究所，甘肃省科学院生物研究所 |
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| 基金项目： | 本文为国家自然科学基金 |
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| 摘 要： | 沙棘果实成熟与衰老时均不脱落,甚至干缩在果枝上,为了研究沙棘不落果原因,寻求促进落果的有效方法,我们进行了下列实验。一、材料与方法 (一)外施乙烯与ABA于果实完熟前期(9月中下旬)剪取中国沙棘(Hippophaerhamnoides L.Subsp.Sinesis)、西藏沙棘(H.thibetana Schlechtend)带叶果枝,将下端分别浸于装有500、1000ppm乙烯利,50、100ppm ABA与50、100ppm6-康基氨基腺
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| 关 键 词： | 沙棘 果实 脱落 脱落酸 乙烯 |
APPROACH TO THE NON-ABSCISSION CAUSE OF SEABUCKTHORN FRUITS |
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| Zhang Wei, Zhang Rui, Zhang Hui,.APPROACH TO THE NON-ABSCISSION CAUSE OF SEABUCKTHORN FRUITS[J].Scientia Silvae Sinicae,1992,28(1):76-79,T001. |
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| Authors: | Zhang Wei Zhang Rui Zhang Hui |
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| Abstract: | ABA, ethylene and other abscisic accelerator were permeated into the sta- lks attaching with fruits and leaves by a hypobaric method. Although the leaf abscission was promoted, the fruit abscission could not be fulfilled. The results observed by microphotography and slanning electron microscopy indicated that the treatments promoted inducing the formation of absciss layer for leaf stalks, but not for fruit stalks, suggesting that seabuckthorn fruits belong to non-abs- cission type on anatomy, which similar to the needle structure of non-abscission type. In addition, during the full ripening of seabuckthorn fruits, there were very high levels of endogenous plant hormones (IAA, GA_3, iPA and Zeatin) retarding senescence and resisting abscission in fruit stalks, and much higher con- tants of total acid, Vitamine C, V_E, which related to resisting senescence. After winter, the levels of zeatin, GA_3 in fruit stalks markedly increased. The non-abscission of seabuckthorn fruits may be associated with them |
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| Keywords: | Seabuckthorn fruits Abscission ABA Ethylene |
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