茶樹の裂傷型凍害抵抗性の早期検定 : 第1報 凍害の様相と抵抗性の品種間差異
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概要
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茶樹の裂傷型凍害は,おもに初霜期に発生し,幼木やさし木苗の幹の皮層に裂傷を生ずるのが特徴で,顕著な品種間差異があり,厳寒期の成葉の凍害とは区別して考えねばならない。特に緑茶用品種の中にきわめて抵抗性の弱い数品種があることがわかった。裂傷型凍害の発生しやすい気象条件は,秋の最高気温が高くて,最低気温の低下の著しいことで,また初霜前10日間の平均最低気温が高いことと,発生地の初霜時の地温が高いことが指摘された。
- 日本作物学会の論文
- 1973-04-25
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