水稲幼作物の分蘗原基及び分蘗芽に関する研究 : (第5報) 播種深度が分蘗原基及び分蘗芽の発育に及ぼす影響 I. 畑状態の場合

概要

論文の詳細を見る
1. This experiment was made to determine how seeding depth effects on the development of tillering primordium and bud under soil moisture as upland field condition. 2. Seeding depth is as follows 0.5, 1, 2, 3, and 5 cm. 3. The development of the each tilllering primordium and bud is generally good under shallow sowing depth and as the sowing becomes deeper their growth was retarded. a. The first tillering drimordium and bud grew to about 1 mm length in all plots, but then the growth was stopped. b. The second tillering primordium and bud grew well under seeding depth of 0.5, 1, and 2 cm, and appeared outside of the leaf-sheath. However, under 3 and 5 cm depth the growth was remarkably restrained. c. The third tillering primordium and bud grew well, not only undg 0.5, 1, and 2 cm but also 3 cm, But under 5 cm depth the growth was more or lees restrained. d. As to the fourth, fifth, sixth and seventh tillering primordium and bud, effeet of seeding-depth seemed to be comparatively small, and in all plots the tillering bud developed well and showed tendency to appear outside of the leaf-sheath.
日本作物学会の論文
1953-12-25