群馬県における秋播性早生コムギ品種さとのそらの生育・収量特性

日本作物学会紀事

高橋 利和¹  大澤 実¹  菅谷 隆幸¹ 

[1] 群馬県農業技術センター

关键词: Logistics;    ロジスティック回帰;    Satonosora;    さとのそら;    Varietal difference;    品種間差異;    Wheat;    コムギ;    Winter habit;    秋播性;   

DOI  :  10.1626/jcs.81.343

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

The new winter wheat Satonosora was compared with the spring wheat Norin 61 in terms of growth and yield for three years to clarify the difference in their characteristics. Both cultivars were grown in Gunma Prefecture. Patterns of young ear elongation and increase in dry matter weight of kernels were described using a logistic equation. Tillers in Satonosora developed earlier than those in Norin 61. The maximum number of tillers per unit area in Satonosora was higher than that in Norin 61. Although the duration of the young ear formation stage in Satonosora was almost equal to that in Norin 61, heading and maturity of Satonosora occurred earlier than in Norin 61. Based on accumulated temperature, young ear elongation was faster in Satonosora than in Norin 61, leading to early heading of Satonosora according to our logistic equation analysis. The patterns of increase in dry matter weight of kernels did not differ markedly between the two cultivars. According to our logistic equation analysis, the cultivars would need an accumulated temperature of 737°C from heading to physiological maturity. Although spikelet number and grain number per ear of Satonosora was lower than those of Norin 61, grain yield of the former was larger than that of the latter, since mean grain weight and the number of ears per unit area were higher in the former than in the latter. Grain yield of Satonosora considerably correlated with the number of ears per unit area. This indicated that grain yield of Satonosora depends on the number of ears per unit area.

【 授权许可】

Unknown