湛水直播水稲の出芽・苗立ち向上に向けて

日本作物学会紀事

古畑 昌巳¹ 

[1] 中央農業総合研究センター北陸研究センター

关键词: Coleoptile length;    鞘葉長;    Direct seeding in flooded paddy field;    湛水直播;    Draining of flooded water;    落水;    Rice;    水稲;    Seedling emergence rate;    出芽速度;    Seedling establishment;    苗立ち;    Sugar metabolism of seed;    種子の糖代謝;    Variety;    品種;   

DOI  :  10.1626/jcs.78.153

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

In our country, the work of raising seedlings and transplantation occupies one-quarter of the working hours for growing rice. Introduction of direct seeding culture is expected to reduce the cost and labor for rice farming. However, direct seeding culture is not widespread and is used for only about 1% of the land for rice cultivation. The main reason is thought to be the unstable seedling emergence after direct seeding. In this paper, studies on the factors related to seedling emergence and establishment including the effect of drainage after seeding, the field conditions required for efficient drainage after seeding, the effects of calcium-peroxide and iron-coating of seeds and seed pretreatment, the meteorological conditions after seeding, the characteristics necessary for excellent seedling emergence and its use for breeding, and the sugar metabolism in the seed related to seedling emergence are reviewed. The direction of future research is also discussed.

【 授权许可】

Unknown