Another of the early studies (Eller & Reuss 1982) asked "what advantage a growth habit has, such as is found in the genus Lithops N. E. Br.5 in avoiding excessive water loss by the plant. They further note that: "The embedding of the large mantle surface into the soil is considered as an adaptation in order to reduce excessive water loss by transpiration. (Walter 1938, Nel 1947). To test this hypothesis "experiments on transpiration and water uptake were performed under controlled environmental conditions". Plants used for these experiments were Lithops lesliei N. E. Br. and L.karasmontana (Dint. et. SchwantNJE. Br.).
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机译：另一项早期研究（Eller＆Reuss 1982）问道：“生长习惯具有什么优势，例如在Lithops NE Br.5属植物中可以避免植物过度失水。他们进一步指出：“为了减少因蒸腾作用而造成的过多水分流失，进入土壤的大地幔表面被认为是一种适应措施。 （Walter 1938，Nel 1947）。为了检验该假设，“在受控环境条件下进行了蒸腾和吸水实验”。用于这些实验的植物是Lithops lesliei N. E. Br.。和L.karasmontana（Dint。等，SchwantNJE。Br。）。
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