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首页> 外文期刊>Plant and Soil >Stomatal control of water use in olive tree leaves.
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Stomatal control of water use in olive tree leaves.

机译：气孔控制水在橄榄树上的叶子。

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In 1995 in an orchard at Coria del Rio, Spain, 26-year-old olive cv. Manzanillo trees were given full irrigation, one third of full irrigation or were not irrigated. Under conditions of high vapour pressure deficit of the air (Da), the olive trees prevented excessive water loss by closing their stomata. Current-year leaves showed better stomatal control than did 1-year-old leaves. Highest values for stomatal conductance of H2O (g) were observed at relatively low photon flux densities (Ip), from about 500 鎚ol m-2 s-1, and there was also a proportional decrease in g with increasing Da, at least for values of up to approximately 3.5 kPa. Values of g were higher in the morning than in the afternoon for similar values of Ip and Da. Unirrigated olive trees recovered quickly after the dry season, showing values for leaf water potential and g similar to those of irrigated trees after just two days.
机译：1995年，在西班牙Coria del Rio的一个果园里，有26岁的橄榄简历。曼萨尼约（Manzanillo）树得到了充分灌溉，是完全灌溉的三分之一，或者没有灌溉。在空气中蒸气压亏空（Da）的条件下，橄榄树通过关闭气孔来防止过多的水分流失。本年度叶片显示出比1年龄叶片更好的气孔控制。在相对较低的光子通量密度（Ip）下，从大约500锤酚m-2 s-1处观察到H2O的气孔电导率的最高值（g），并且随着Da的增加，g也成比例地降低，至少对于最大约为3.5 kPa。对于类似的Ip和Da值，早上的g值比下午的高。干旱季节后，未经灌溉的橄榄树很快恢复了生长，显示出叶水势和g的值与仅经过两天的灌溉树相似。

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