マメ科の塊根形成種クズイモ(フィリピン系)の試作

概要

論文の詳細を見る
The seeds of a strain of yambean introduced from Philippines were sown in the field of Faculty-Farm, Nankoku, Kochi, Japan ( 33° 33'22''N, 133°41'14''E ), in mid June, 1985, and successful root tuber production was observed. Probably, this is the first instance of the cultivation of yambean, which is a traditional tropical edible tuber crop belongs to the Leguminosae, in temperate Japan. This paper describes briefly on the major agronomic characteristics, especially, on the tuber production. In early October, flowering has occurred and fairly good development of tubers was observed. In the harvest on November 12, 1985, a wide range of variation in tuber weight from 100 to over 800g, and the same variation in the tuber shape-index, ratio of length width, were recognized under different conditions, with or without mulching by colorless or black polyethylene film and spacings, with the same fertilizing level. Turnip-shaped tubers, which are more commonly observed in tropical countries, were rather rare in this trial. Single and spherical or spindle-shaped tuber was formed per a plant in direct seed-sown field conditions, but, mal-formed tubers, that is, multi-tubers, guoad-like constricted ones, and/or pencil-like or hard roots, were occurred frequently by trans-planting. It was appeared that a mechanical damage of tap root tip by trans-planting practice is a cause of this mal-formation of the tubers. Fresh tubers showed from 7 to 10 (mean 8.8) % in refracto-meter readings, from 1.4 to 4.2 (mean 2.7) % in starch content, and from 9.5 to 16.3 (mean 13.6) % in dry matter ratio, respectively. A possibility of fresh tuber yield, at least, 3〜4t/10a was expected in this trial and also from the yield of the farmer's trial, who had sold fresh tubers as vegetables to the markets.
日本作物学会の論文
1985-12-25

マメ科の塊根形成種クズイモ(フィリピン系)の試作

スポンサーリンク

概要

著者

関連論文

スポンサーリンク