乾物生産様式からみたダイズの理想生育型に関するひとつの試論
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概要
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The local differences in growth and yield of soybean were investigated from the viewpoint of dry matter production involved in the hope that concerning the photosynthesis, the mode of utilization of locational conditions might be remarkably reflected on the mode of dry matter production. The present investigation was carried out in Sapporo, Ina, Kyoto, Okayama and Fukuoka at 1981 and 1982. Materials and method of investigation were fixed through this experiment. The typical evidences concerning the dry matter production are as follows: 1) In view of the quantity of dry matter production during the vegetative stage, there exists possitive correlation to the yield in the cooler area and in cultivars adapted to its place, but it is difficult to find correlation in the warmer place and in cultivars adapted to it. 2) The quantity of dry matter production at flowering stage is closely related to its yield independently of areas and varieties. 3) The sizes of dry matter production and leaf area index at the end of flowering stage have a great influence on the yield concerning "Tokachinagaha" and "Harosoy" suited in the cooler area, on the contrary those have little effect on "Shirotae" and "Tamanishiki" suited in the warmer area. 4) The dry matter production during the vegitative stage has effect on the development of lower and higher order cluster, and during the flowering stage the development of the higher order cluster is influened by the dry matter production. On the basis of the experimental results mentioned above which support the differentiation toward "Northern growth type" and "Southern growth type", we considered a few points about ideal growth type of soybean.
- 信州大学農学部の論文
- 1984-12-25