作者：彭良志,何绍兰,淳长品,雷霆
作者单位：中国农业科学院柑桔研究所
摘要：朋娜和纽荷尔脐橙在第二次生理落果末期，初生果内源ＧＡ４＋７浓度高于次生果，但二者浓度均在脐黄初发期出现低谷，在脐黄主要发生期（７月），初生果和次生果内源ＧＡ４＋７浓度都较大幅度升高，且次生果内源ＧＡ４＋７浓度明显高于初生果。果枝环剥人为诱导朋娜“脐黄”过程中，初生果和次生果内源ＧＡ４＋７浓度则明显低于对照果。推测自然发生脐黄与果枝环剥诱导脐黄的生理不同，并对这两种脐黄现象进行了分析。
关键词：脐橙；脐黄；内源GA_（4＋7）
Title: The Changes of Endogenous GA 4+7 in Navel Orange Fruits During Secondary fruit Yellowing
Authors: Peng Liang-zhi,He Shao-lan,Chun chang-pin,Lei Ting
Abstract: During the end of June fruit drop,the endogenous GA 4+7 concentration in the primary fruit was higher than that in secondary fruit for both Skaggs Bonanza and New Hall navel orange(Citrus sinensis). Both the endogenous GA 4+7 concentration in primary fruit and secondary fruit dropped sharply before the early stage of secondary fruit yellowing(SFY). In July,the main period of SFY,the endogenous GA 4+7 concentration in both the primary and secondary fruit increased sharply. However,its concentration was higher in secondary fruit than that in the primary fruit. Girdling fruit shoots induced SFY,but the induced SFY fruit had lower endogenous GA 4+7 concentration in both the primary and secondary fruit as compared with control fruit. It is supposed that the physiological process for natural SFY and girdling induced SFY is different. The mechanism of the two kinds of SFY is discussed.
Key words: Navel orange(Citrus sinensis)； Secondary fruit yellowing； Endogenous GA 4+7；
文献注录：彭良志,何绍兰,淳长品,雷霆. 脐橙果实脐部黄化过程中内源GA_(4+7)变化动态 [J]. 中国南方果树. 1999, 01: 3-6.
基金: 国家自然科学基金
报/刊名：《中国南方果树》，发表于1999 / 第 01 期。
文献类型： [J] （文献级别：核心刊物）
页码：第 3-6 页 / 共4 页