@article{oai:iwate-u.repo.nii.ac.jp:00015392,
 author = {及川, 聡子 and 鈴木, 健策 and 西, 政佳 and 由比, 進 and 松波, 麻耶 and 下野, 裕之},
 issue = {1},
 journal = {日本作物学会紀事},
 month = {Jan},
 note = {寒冷地において，雪解け後の作業制約や春作業の競合がない初冬直播き栽培は，規模拡大やコスト低減を実現する有効な手段の1つである．本研究では，初冬直播き栽培での越冬後の出芽率に与える種子への薬剤処理の効果と採種年の影響を評価した．コーティング資材を含め全26種の薬剤処理の効果を検討した結果，最も効果の高い薬剤はチウラム水和剤（キヒゲンR-2フロアブル．以下，KG）であり，対照（無コーティング，当年産種子，休眠打破なし）での越冬後の出芽率3～9％より17ポイント向上させた．また，前年産と当年産の種子では前年産の出芽率が低下すること，また種子の休眠打破処理によって出芽率が大幅に低下することを明らかにした．すなわち，初冬直播きにおいてKGが有効な種子薬剤であることを見出すとともに，種子休眠の維持が初冬直播き栽培の出芽率の向上に重要であることを示した．, In cool climates, direct-sowing in early winter is an effective technique to improve rice productivity. We evaluated the effect of chemical treatment of rice seeds and harvest year on the seedling establishments. The most effective chemical was Thiuram (“Kihigen-R2-Furoable”; KG) among 26 combinations of chemical and material applications, which improved the seedling establishment approximately 17 points compared to the percent seedling establishment of non-treated control seeds (3～9%). In addition, harvest year strongly affected the seedling establishment; that is, the seeds sown in the year they were harvested gave better establishment than the seeds harvested in the previous year. The seeds sown in the year they were harvested showed greater dormancy than the seeds harvested in the previous year. An artificial dormancy-break treatment severely reduced the seedling establishment. These results showed that “KG” improved rice-seedling establishment, and that seed dormancy was important to attain high seedling establishment in direct sowing in early winter.},
 pages = {1--9},
 title = {水稲の初冬直播き栽培における出芽率に及ぼす種子への薬剤処理と採種年の効果},
 volume = {90},
 year = {2021}
}