糸瓜蔓割病耐病性品種の育種研究 : 第1報倍数体の育成及びその特性

概要

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( 1 ) The sponge gourd, Luffa, are cultivated in Japan for the purpcse of dried fibers of mature fruits, widely used for industrial purposes; for instance, to make oil-filters in certin machine, dish cleaners, certain summer hat etc. The region near Hamamatsu citv. , produced the greater part of these fibre in Japan. But recently, the sponge gourd cultivation is becoming ver.v unstable due to Fusarium wilt disease, and therefore we undertook the breeding works to induce certain wilt-resistant varieties, since several years ago. In the series of the breeding wark, we adapted polyplaidy breeding paralleled to many other methcds. Although the researches and the data are somewhat defective in certain points, as this wcrk was undertaken in the course of practical breeding work, we have attained some conclusion. This paper is offered to discuss this research of polyploidy breeding. ( 2 ) The tetraploids were induced by means of colchicin treatment in 1952. Their morphological charactor and fertility were investigated for two years in non-infected field at Shizuoka city, and the wilt resistance of them were examined in the second year in the infected field near Hamamatsu city where the Fusariun4 wilt was broken cut and about 50 percent of spange gourd were darnaged.
日本育種学会の論文
1955-07-05