山形県庄内地域における登熟期間の気温がダイズの百粒重に及ぼす影響

日本作物学会紀事

柴田 康志²  森 静香¹  藤井 弘志¹  松田 裕之² 

[1] 山形大学農学部;山形県農業総合研究センター水田農業生産試験場

关键词: Cold climate region;    寒冷地;    Grain weight;    百粒重;    Ripening period;    登熟期間;    Soybean;    ダイズ;    Temperature;    気温;   

DOI  :  10.1626/jcs.80.43

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

The relationship between 100-grain weight of soybean and temperature during the ripening period was analyzed by using crop data of soybean cultivar “Tachiyutaka” from 1989 to 2008 in Shonai district of Yamagata prefecture. The grain yield was correlated with the number of pods per unit area when the average number of pods was below 772 m-2, and 100-grain weight when the average number of pods was over 772 m-2. In addition, there was a significantly negative correlation between temperature during ripening period (from flowering stage to maturing stage) and 100-grain weight. The dry matter production of soybean plants from Aug.1 to Sept.1 decreased with decreasing daily temperature range from Aug.1 to Sept.1 resulting in a decline of dry matter production per pod and 100-grain weight. From these results, we concluded that the decline of 100-grain weight was caused by the high temperature during the ripening period in Shonai district of Yamagata Prefecture situated in the cold climate region.

【 授权许可】

Unknown