@article{oai:kagawa-u.repo.nii.ac.jp:00003052,
 author = {浅沼, 興一郎 and Asanuma, Koh-ichiro and 中, 潤三郎 and Naka, Junzaburo and 木暮, 秩 and Kogure, Kiyoshi},
 journal = {香川大学農学部学術報告, Technical bulletin of Faculty of Agriculture, Kagawa University},
 month = {Mar},
 note = {The present experiment was carried out to obtain some information about the yield-determining process in soybean plants concerning with dry matter production under three plant densities, using the autumn type variety "Akiyoshi" as material. The three plant densities conducted were 'low'(3.3/㎡), 'medium'(6.6/㎡), and 'high'(13.2/㎡) under field conditions. With increase in plant density, dry weight of each organ, numbers of branches, total nodes, leaves, pods and seeds per plant decreased, but the results per sq. meter were generally contrary to the results per plant. Though the productive structures in three plant densities showed the type of broad leaf plants, vertical distribution of photosynthetic system was restricted in upper portion with progress in growth stage and with increase in plant density, showing a close relation to the light distribution within canopies. Of the various yield components, the number of total pods and the ratio of fertile/total pods might be dependent on dry matter production at the vegetative growing stage and the early maturing stage, respectively. Judging from these results, it appears that 'high' density in this experiment may be a limit beyond which further increase in plant density will not increase the seed yield., 秋ダイズの収量成立過程を群落における乾物生産の面から解明するため、「アキヨシ」を供試して、栽植密度を疎(3.3個体/㎡)、中(6.6個体/㎡)、密(13.2個体/㎡)とした3区について実験した。 作物体の生育状況をみると、個体あたりでは密植になるほど主茎長は大となったのに反し、分枝数、総節数、総葉数、総莢数、子実数、各器官の乾物重は小となったが、単位土地面積あたりでは概して相反する様相を呈した。 乾物生産構造は各区とも広葉型の特色を呈し、光合成系は生育が進むに従い、一方では密植になるほど下層位での分布が少なくなる傾向が認められ、群落内相対照度の分布と密接な関連を示していた。 収量構成要素のうち、総莢数は栄養生長期の、また稔実莢歩合は登熟初期の乾物生産とそれぞれ密接な関連を有していると考えられた。 以上の諸点より、本実験における密植区は子実収量からみた栽植密度の限界に近いことがうかがわれた。},
 pages = {11--18},
 title = {秋ダイズにおける乾物生産と栽植密度との関係},
 volume = {28},
 year = {1977},
 yomi = {アサヌマ, コウイチロウ and ナカ, ジュンザブロウ and コグレ, キヨシ}
}