栃木県水稲の品質変動要因と地域間差異

日本作物学会紀事

吉田 智彦¹  大谷 和彦² 

[1] 宇都宮大学農学部;栃木県農業試験場

关键词: Regional difference;    現地調査;    Rice quality;    玄米外観品質;    Paddy rice;    水稲;    Regional trial;    地域間差異;   

DOI  :  10.1626/jcs.77.133

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

From the regional trials in Tochigi prefecture for dozens of years, we examined the factors causing variation of rice quality (appearance) and their regional difference in Tochigi prefecture. Sowing time, heading time, maturing time, basal dressing, culm length, lodging, panicle blast, brown rice weight, thousand-kernel weight and duration of sunshine hours were factors causing the regional difference. The factors causing a change in quality varied with the regions. In some regions, quality was improved when sowing time was delayed or maturing time was hastened. In some regions, normally stable and high quality cultivars became unstable. A certain range of lodging and brown rice weight, was necessary to obtain high quality rice, and the quality became unstable out of this range. We found similarity in rice quality in some adjacent regions.

【 授权许可】

Unknown