Effect of Sowing Time and Planting Density on the Protein Content of the Seeds on the Main Stem and Branches of Soybean Grown in Upland Field under Paddy-upland Rotation

UCHIKAWA Osamu, FUKUSHIMA Yusuke, MATSUE Yuji

doi:10.1626/jcs.73.287

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水田転換畑作ダイズの主茎と分枝に着きょうした子実タンパク質含有率と播種時期，栽植密度との関係
水田転換畑作ダイズの主茎と分枝に着莢した子実タンパク質含有率と播種時期,栽植密度との関係
スイデンテンカンハタサクダイズノシュケイトブンシニチャクキョウシタシジツタンパクシツガンユウリツトハシュジキサイショクミツドトノカンケイ

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Abstract

Effects of sowing time and planting density on the protein content of the seeds collected from main stems and branches were investigated to establish the cultivation technique for improving the protein content of soybean seeds grown in upland fields under paddy-upland rotation. In both main stems and branches, the protein content of the seeds was increased by late sowing and higher sowing density. Seeds on the main stem also had a irrespective of higher protein content than those on branches irrespective of sowing time and sowing density. The average protein content of seeds was negatively and significantly correlated with the number of branches per plant and cumulative temperature during the ripening period (CTRP). The correlation of the protein content with the branch number per plant was higher than that with CTRP, suggesting that the protein content of the seeds was more influenced by the branch number than CTRP. In addition, the protein content of the seeds was more affected by sowing time than sowing density in both main stems and branches.

Journal

Japanese Journal of Crop Science

Japanese Journal of Crop Science 73 (3), 287-292, 2004

CROP SCIENCE SOCIETY OF JAPAN

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