寒冷地で湛水土中に播種された水稲の初期生育に関連した品種特性の評価

日本作物学会紀事

帖佐 直¹  古畑 昌巳²  大角 壮弘²  松村 修² 

[1] 東京農工大学農学部;中央農業総合研究センター北陸研究センター

关键词: Coleoptile;    鞘葉;    Direct seeding in flooded paddy field;    湛水直播;    Germination;    発芽;    Rice;    水稲;    Seed;    種子;    Seedling emergence rate;    出芽速度;    Seedling establishment;    苗立ち;   

DOI  :  10.1626/jcs.81.10

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

To clarify the varietal variation of seedling emergence in direct seeding culture, and the characteristics that contribute to the emergence in a cold climate, we tested seedling emergence in the soil at a low temperature using a nursery box, We also examined the germination characteristics and coleoptile elongation under anaerobic conditions in relation to seedling emergence. The emergence rate of seedlings from the soil at a low temperature was positively correlated with early plant growth and with the coleoptile elongation rate at a low temperature in anaerobic conditions. The germination coefficient in a cold Petri dish was positively correlated with the seedling emergence rate and early plant growth in the soil at a low temperature. However, the factor responsible for this correlation could not be clarified.

【 授权许可】

Unknown