日本作物学会紀事
Online ISSN : 1349-0990
Print ISSN : 0011-1848
ISSN-L : 0011-1848
水稲直播栽培における出芽に関する研究 : 第2報 出芽に及ぼす冠水の影響
井之上 準穴山 彊片山 佃
著者情報
ジャーナル フリー

1967 年 36 巻 1 号 p. 25-31

詳細
抄録
1) The rate of emergence of plumule decreased with the extension of the period of submer-sion treatment. Under all temperature conditions (20°, 25°and 30°C), the rate of emergence of plumule decreased, with the depth of seeding. 2) The growth of plumule was affected by submersion treatment. This submersion injury was distinct at the treatments, 2 to 5 days after seeding at 30°C. In these cases, the lengths of plumules were about 0.03 to 2.0 cm long. 3) Respiratory activity of plumule was reduced by submersion treatment. In the case of 3 cm-depth seeding at 30°C, the longer the period of submersion, the more was the decrease of the respiratory activity of plumule. 4) The submersion injury to respiration of plumule was strong at the treatments 2 to 5 days after seeding at 30°C, the lengths of the plumules were about 0.05 to 2.0 cm long. The reasons of the bad effects of submersion treatment on the emergence of plumules are as follows: (i) decrease of amount of oxygen in soil, (ii) reduction of respiratory activity, (iii) decrease of energy obtained from respiration, (iv) reduction of growth of plumule, and (v) decrease of the rate of emergence of plumule.
著者関連情報
© 日本作物学会
前の記事 次の記事
feedback
Top