酸化鉄コーティング種子における種子予措が湛水直播水稲の出芽・苗立ちに及ぼす影響

日本作物学会紀事

帖佐 直¹  古畑 昌巳¹  大角 壮弘¹  松村 修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: Germination;    発芽;    Iron-coated seed;    鉄コーティング種子;    Rice;    イネ;    Seedling emergence;    出芽;    Seedling establishment;    苗立ち;    Seed pretreatment;    種子予措;    Submerged direct seeding;    湛水直播;   

DOI  :  10.1626/jcs.79.363

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

The emergence and establishment of germinated iron oxide-coated paddy rice seeds were examined in the field and in pots to establish a method for direct seeding culture of iron oxide-coated seeds using an air-assisted row seeder in a cold districts. In this study, we focused on the prewarming of coated seeds to shorten the time to seedling emergence and establishment of direct seeding of iron oxide-coated germinated seeds. The effect of seeder passage treatment after heat processing of coated seeds on seedling emergence and establishment and that of cold storage of coated seeds were examined. Direct seeding of iron-coated germinated seeds resulted in earlier seedling emergence and higher establishment rate and promoted early growth under low temperature conditions, suggesting that iron oxide-coated germinated seeds would perform well in cold areas such as Hokuriku region. However, iron oxide-coated germinated seeds, after prewarming were markedly damaged by seeder passage treatment and were rapidly deteriorated in germinability during low temperature storage. Overall, the introduction of prewarming of coated seeds into direct seeding culture of iron oxide-coated seeds was difficult.

【 授权许可】

Unknown