水稲品種「コシヒカリ」の高温登熟回避を目的とした 晩植条件下における密植栽培の評価

日本作物学会紀事

山口 琢也¹  守田 和弘¹  松島 知昭²  古畑 昌巳⁴  齋藤 綾乃³ 

[1] 富山県農林水産総合技術センター;新川農林振興センター;富山県農業技術課;中央農業総合研究センター北陸研究センター

关键词: Grain quality;    品質;    High temperature;    高温;    Koshihikari;    コシヒカリ;    Planting density;    栽植密度;    Rice;    水稲;    Yield;    収量;   

DOI  :  10.1626/jcs.81.349

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

The effects of dense planting on the growth, yield and grain quality of rice (Oryza sativa L. cv. Koshihikari) late transplanted to avoid a high temperature during the ripening period were investigated for two years. Dense planting, 21.2 and 24.2 hills/m2, increased the number of panicles resulting in higher yield compared with normal planting, 18.2 hills/m2. In addition, it increased the yield in 2008 with slightly solar radiation during the ripening period. Late transplanting with dense planting increased the grain quality in both years, and in addition, improved grain quality in 2007 with much solar radiation during the ripening period. These results suggest that the dense planting in late transplanting is effective in improving yield and grain quality, and also in securing solar radiation while avoiding high temperature during the ripening period.

【 授权许可】

Unknown