多年生雑草クログワイの防除に関する基礎的研究 : 第1報繁殖の生理生態学的特性について

概要

論文の詳細を見る
In this paper, the formation of tubers of Kuroguwai (Eleocharis kuroguwai) and the germination from tuber were studied in order to obtain some fundamental informations for controling this weed. The results obtained were as follows: (1) The thickening apex rhizome develops as a grobular tuber having 4〜6 buds at the top. The primordium of root and stem is located in the middle of the bud. The negative-geotropism of the rhizome found in the lower part of the bud is one of the characteristic properties of Kuroguwai. (2) The mature tubers keep dormancy during winter. But, the buds are able to develop if the prepuce covering the buds is removed. Moreover, the buds cut off from the tuber can develop without the tuber. (3) It seems that the development of tubers is promoted by short-day, but inhibited by the cutting of the stems at the primary stage of the development. (4) The elongation of the negative-geotropic rhizome is promoted under low O_2-concentration and dark condition, whereas the differentiation of stem and root is promoted under high O_2-concentration and light condition.
日本雑草学会の論文
1969-08-30