Key message

The dioecious Idesia polycarpa all that males and females do not invest in the same way in growth and branching in quantity, type of axes and in time (annual growth and sequence of these events over time).

Abstract

The annual growth of plants is an important indicator for growth and development, especially for younger trees. The aim of this study was to decide the physiological basis for vegetative growth effects on the trunk and crown development in Idesia polycarpa by assessing the effects on variations in bud growth, leaf, and canopy size. This study focused on the annual vegetative growth of young (3-year old) female and male I. polycarpa Maxim trees and their functions are separate. The phenology provides a challenge in the production of resources (seed, oil) and to investigate the effect of sexual specialization. Here we describe the variations between two sexes in terms of vegetative growth in our field studies. The study began in the sprouting season with observations of the gradual growth of the newly sprouting buds. The length of expansion, diameter growth, and leaf production from the terminal bud (TB), lateral terminal bud (LTB) of the first tier of branches (1Y), second tier of branches (2Y), and third tier of branches (3Y) of the trees were measured. The results showed growth differences between female and male groups in the growing year. The length of shoot expansion, diameter, and leaf production were higher for female trees than for male trees. Male trees grew more long and short branches (SB) than the female trees, with large numbers of short branches on the 1Y and 2Y of the male trees. Further investigation needed to analyze factors of annual fluctuation of the shoot expansion of the tree, with more studies investigating complex branching phenomenon, flowering, and fruit production in I. polycarpa Maxim.

中文翻译：

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poly实雌雄异株幼树营养生长模式的研究

关键信息

在雌雄异株 山桐子 所有的男性和女性不以同样的方式投资于成长型和分支数量，轴的类型和时间（随着时间的推移年增长率序列这些事件）。

抽象

植物的年生长量是生长和发育的重要指标，尤其是对于幼树而言。这项研究的目的是决定在树干和树冠发育营养生长效应的生理基础，山桐子通过评估在萌芽生长，叶片，和树冠的大小变化的影响。这项研究侧重于年轻（3岁）雌雄I. polycarpa的年度营养生长。Maxim树及其功能是独立的。物候学对资源（种子，石油）的生产和调查性专业化的影响提出了挑战。在这里，我们在野外研究中描述了两种植物在营养生长方面的差异。该研究始于发芽季节，观察到新发芽的芽逐渐生长。第一层树枝（1Y），第二层树枝（2Y）和第三层树枝（3Y）的顶芽（TB），侧顶芽（LTB）的扩张长度，直径增长和叶片产量）的树木被测量。结果显示，在成长的一年中，男性和女性之间的增长差异。雌性树的芽扩展长度，直径和叶片产量高于雄性树。雄树比雌树生长出更多的长枝和短枝（SB），在雄树的1Y和2Y上有大量的短枝。需要进行进一步的调查以分析树木的枝条膨胀的年度波动因素，并进行更多的研究以调查该树的复杂分枝现象，开花和果实产量。一叶poly。