クヌギ1年生苗・ブナ2年生苗の乾物および"可溶性"炭水化物収支

概要

論文の詳細を見る
The growth process during the growing season of 1-year-old Q.acutissima and 2-year-old F.crenata seedlings was analyzed. Based on seasonal changes in the distribution of dry weight increment and of the "soluble" carbohydrate increment to the photosynthetic and non-photosynthetic systems, the growing season of Q.acutissima was divided into the following five periods : (1) the first period of constructing new organs with consumption mainly of "soluble" carbohydrate reserved in old organs ; (2) the second period of the expanding photosynthetic system due to photosynthetic activity ; (3) the third period of the expanding non-photosynthetic system due to photosynthetic activity ; (4) the fourth period of accumulation of "soluble" carbohydrate ; and (5) the fifth period of leaf fall during which the soluble substances in the leaves were withdrawn and/or consumed by respiration before leaf fall. Of these periods, th second and third periods could not be observed in the F.crenata seedlings. In bath species, the major part or the "soluble" carbohydrate consisted of crude starch fraction. Both species, appeared to use about 80% of the net production for net growth, and the remaining 20% were shed as leaf fall.
日本生態学会の論文
1981-06-30