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荔枝三种结实类型内源激素的平衡与坐果机理

果树科学 1998年第1期15卷 39-43页

作者：邱燕萍向旭王碧青张展薇袁沛元广东省农业科学院果树研究所广州510640

首次引入内源激素平衡[(1AA+GAs+CTK)/ABA]概念,比较分析了荔枝三种类型果实(大核、小核、无核)内源激素平衡的动态变化;揭示了无核果在花后3d相对高水平的生长促进类激素(IAA+GAs+CTK)及花后ABA水平的持续下降是其具有单性结实能力的... 详细信息

首次引入内源激素平衡[(1AA+GAs+CTK)/ABA]概念,比较分析了荔枝三种类型果实(大核、小核、无核)内源激素平衡的动态变化;揭示了无核果在花后3d相对高水平的生长促进类激素(IAA+GAs+CTK)及花后ABA水平的持续下降是其具有单性结实能力的主要原因;同时,揭示了坐果期低水平的IAA、GAs及相对较低的(IAA+GAs+CTK)/ABA值是小核品种严重生理落果的主要原因;并比较了荔枝果实各组成部分(果皮、假种皮、种子)内源激素平衡的差异,认为胚的正常发育对维持荔枝果实后期的生长发育有重要意义,是大核品种后期生理落果较少的内部生理基础。

关键词：荔枝结实类型内源激素平衡坐果机理

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玉米秃顶成因的研究进展

贵州农业科学 2011年第2期39卷 23-26页

作者：田恩阔陈长艳周凌田飞朱峰王仙屏邵明波贵州省油菜研究所贵州贵阳550008

为进一步控制玉米秃顶,实现玉米生产丰产稳产,根据现有研究成果,就玉米果穗秃顶形成的遗传生理特性及环境胁迫与秃顶形成的关系进行了综述,并对玉米秃顶形成的原因进行了分析。

关键词：玉米秃顶结实类型基因型环境胁迫

Annual changes of iron, manganese, zinc and copper concentrations in both types of citrus fruit

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广西植物 2008年第2期28卷 237-241页

作者： XIAO Jia-Xin PENG Shu-An Anhui Provincial Key Lab of the Conservation and Exploitation of Biological Resources Institute of Horticulture ResearchCollege of Life Sciences Anhui Normal University Wuhu 241000 Key Laboratory of HorticulturalPlant Biology Ministry of Education Huazhong Agricultural University Wuhan 430070 China ）

Annual changes in concentrations of iron（Fe）, manganese（Mn）, zinc（Zn）and copper（Cu）were measured in whole fruits from parthenocarpic Kamei satsuma mandarin（Citrus unshiu）and self-pollinated Egan 1 tangerine（C. reticulata）trees. The results were showed as follows：（1）Zn and Cu concentrations in the ovary of Kamei were relatively high before flowering and at full bloom, and decreased after flowering, whereas those of Egan 1 decreased obviously and were relatively low at full bloom,thereafter significant increases were observed. There were no significant differences in changes of Fe and Mn concentrations in the ovaries（fruitlets）between the two cultivars,which presented similarly decreasing trends after flowering. （2）Fe,Mn,Zn and Cu concentrations were relatively high in whole fruits of both cultivars during young fruit development, and decreased remarkably during early fruit enlargement（drought spell） ,whereas increased dramatically at the middle stage of fruit enlargement, thereafter decreased gradually. Dynamics of micronutrients concentrations in developing fruit and their possible relation with fruits development is discussed herein.

关键词：柑橘果实铁锰锌铜含量测定年周期变化结实类型

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广东荔枝开发品种简介

世界热带农业信息 2004年第1期 25-26页