北海道北部地域における春まきコムギ「春よ恋」に対する開花期以降の尿素葉面散布が子実タンパク質含有率と収量に及ぼす効果およびその変動要因

日本作物学会紀事

奥村 正敏¹  五十嵐 俊成³  佐藤 三佳子¹  鈴木 和織¹  柳原 哲司¹  櫻井 道彦² 

[1] 北海道立上川農業試験場;北海道立中央農業試験場;北海道立道南農業試験場

关键词: Grain Protein Content;    タンパク含有率;    Spring Wheat;    春まきコムギ;    Haruyokoi;    春よ恋;    Foliar application;    葉面散布;   

DOI  :  10.1626/jcs.78.9

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

Spring wheat variety “Haruyokoi” was cultivated with different basal nitrogen applications at three locations in northern Hokkaido. Foliar spray of nitrogen as urea was conducted three times (0.92 g m-2/time per application) at the anthesis time, 7 days later, and 14 days later, and the grain protein content (GPC) and yield were investigated. These three applications resulted in a significant increase in GPC. Yield and 1000-grain weight were also increased. In lodged plants or younger plants with yellow leaves, the effect was not strong. The relationship between GPC with foliar application (y) and GPC without foliar application (x) was shown by the regression formula; y=0.790x+3.6 (9.6 < x < 13.9, n=25, r=0.973, p < 0.01). Because the nitrogen content varied with the amount of basal nitrogen applied, we suppose that the effect of foliar application is influenced by the nitrogen fertilization condition.

【 授权许可】

Unknown