日本陸稲在来種の若干形質の品種間変異について

抄録

1. To study the phylogenetic differentiation of upland rice cultivated i:n Japan, morethan one hundred and thirty varieties were picked out from numerous 'varieties collected from various districts by Experimental Station of Agriculture, Department of Agriculture and Forestry, and investigated with respect to varietal variation of some characters . 2. Most of the varieties of upland rice of Japan showed positive phenol reaction, while.lowland rice showed negative. Some characters, i. e., the degree of destruction of endosperm by KOH solution, the length of mesocotyle grown in a dark place, and the length-width ratio of unhulled grain showed continuous varietal variation. It seemed that upland rice of Japan was composed of varieties of different nature as compared with lowland rice of Japan.