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本实验在法国波尔多的生态条件下,从叶幕光照微区气候和植物水分关系的角度,设计比较了四种植株芽眼负载量(修剪水平)和不同的修剪方式后指出,轻修剪水平(重负荷)的葡萄植株,由于生长的“自动调节”,整个叶幕水平上光照微区气候没有出现恶化现象。但是果际的郁蔽也许是造成物质代谢不良的重要原因之一。在水分关系方面,轻修剪水平植株整个叶幕前半天的蒸腾作用较强,但是以较剧烈的“午间低谷”和整个下午的低水平作为代价;伴随着这个现象的是午后叶幕气孔导性和叶面水势的较低水平。轻修剪水平对植株叶幕光照微区气候和水分关系影响的机理以及对葡萄果实品质形成的作用在本文中作了讨论。
Under the ecological conditions of Bordeaux, France, the effects of leaf pruning on the relationship between the micro-climate and water content in plants were compared. The results showed that the buds of four plants (budding level) and different pruning methods Load) grape plants, due to the growth of the “automatic adjustment”, the entire leaf level light micro-climate does not appear to worsen the phenomenon. However, the decadent result may be one of the important causes of material metabolism. At the moisture level, transpiration was stronger in the first half days of light pruning horizontal plants, but at the more drastic “midday trough” and the low level of the afternoon as a whole; the accompanying afternoon leaf stomatal conductance And foliar water potential of the lower level. The mechanism of the effect of light pruning on the relationship between the climate and the moisture of plant leaf light and the effect on the quality of grape fruit are discussed in this article.