52 土壤含水量がスギおよびヒノキの稚苗の成育ならびに体内水分生理に及ぼす影響

概要

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Measurement of height increment on the one hand, and determinations of moisture content, osmotic concentration, and solute ratio on the other hand were made on seedlings of Sugi and Hinoki to obtain information on the behavior of these species under various soil moisture conditions.With soil moisture at 30 per cent, both species showed best increment, and when soil moisture was restored to 30 per cent after having been reduced to the wilting coefficient, their increment was slightly less. Sugi grew more with soil moisture at 60 per cent than with that at the wilting coefficent, while the contrary was seen in Hinoki.Solute ratio calculated from moisture content and osmotic value, was highen when soil moisture was suitable to seedlings of Sugi and Hinoki i. e when. 30 per cent. Further, solute ratio was signicicantly different in the two species.
日本森林学会の論文
1951-10-25