タイトル |
根深ネギの晩夏〜初秋まき4〜5月どり栽培における抽台回避及び多収技術 |
担当機関 |
鹿児島農試 |
研究期間 |
2001~2002 |
研究担当者 |
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発行年度 |
2003 |
要約 |
晩抽性品種を用いた根深ネギ栽培において、8月下旬~9月中旬まきでPOフィルムをトンネル被覆すると抽台が抑制され、4月下旬~5月に良品が得られる。また、チェーンポットを利用した場合の播種粒数は2・3粒交互まき、育苗日数は40日がL規格収量や上品収量が多く適する。
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キーワード |
ネギ、トンネル被覆栽培、チェーンポット、播種粒数、育苗日数
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背景・ねらい |
夏まき春どり根深ネギの作型は冬期の低温によって花芽分化し、収穫期の4月以降に抽台する危険性が高く、収量、品質が不安定である。そこで、抽台が遅く、収量、品質の優れる晩抽性品種として選定した「春扇」の播種期別抽台の発生特性を把握し、抽台回避及び良質苗生産による多収技術を確立する。
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成果の内容・特徴 |
- 「春扇」は8月下旬~9月中旬播種の無被覆栽培では、収穫適期の4月下旬から5月にかけて抽台が急激に増加し、上品収量が極端に少なくなる(図1、図2)。
- 4月下旬~5月に上品収量(3~4トン/10a)を得るためには、8月下旬~9月中旬まきでPOフィルムを12月~2月まで被覆する(図3)。
- チェーンポットへの播種粒数は、L規格収量が多く、上品収量の多い2・3粒交互まきが適する(図4)。育苗日数は、短いほど生育が促進されるが、定植時の苗が小さいことから欠株が生じやすい。単位面積当たりの上品収量が多い40日育苗が適する(表1)。
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成果の活用面・留意点 |
- 無被覆栽培では、抽台の発生を抑えるために、播種期を7月下旬~8月中旬に厳守する。但し、収穫期は4月上中旬となる。
- POフィルムのトンネル被覆は、地域での平均気温摂氏13度以下、葉鞘径6~7mm以上の大きさを目安に開始する。
- 本試験はチェーンポットCP303を用いた結果である。
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図表1 |
![222495-1.jpg](https://s3-agre-content.s3.ap-northeast-1.amazonaws.com/assets/images/seika_chart/222495-1.jpg?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEJz%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaDmFwLW5vcnRoZWFzdC0xIkYwRAIgexKtZIjL%2FjgMogO2RQNLobfUOvlzG%2BlHwPq2jUYxwHkCIFXm8qPfzcPwfa25%2BaY8bWoY8aMbNGIm8tn3xTPqJ0iMKpAECEUQAhoMNTMyMzMxMDcyMDQxIgxgmjxSHCFRjPH59XEq7QP8WyIHtDta%2BkQQmUv9P3fbHJvH%2B08dc%2F5Z1QJppkpwAaoRyZx7imlavfc1KJiyEnKnV4mrKV%2BGD5vviAXGa%2FSXZ%2FQFbgCpyHC9bMjj6apN2CHTerEYtUbtG9zW%2FmITJow3LAubJl%2FZ7AYqPMckDxmad8JdNcyw0WA1z1sSvcgJagbW%2Fc34svoO4EdgOg2J2ofptKgaTUFkpNIW60X7rDq%2F3o033giz9Q4qBlmLuTS8ga4b3Fl7VK9rMiZmVprSH88UaspGCNFziocrjO56rV4ve8rOvAeVsx6%2F0Fvwm2%2BJMAdB78VFUcNZYKgizyPMj1KiWEtyeDLXEsDYm7lK74es66CrLBWSaMHsKzYsH383bsI8r5nw%2BzERE4I6rJN5t1c2mrcXN6CORdhJ6KY0wYpwsz%2FMF5RWUkeNpFYjzdsE2w5lVMEA97TAPJHUotTGdO89GdroXL75%2FHIpukRVMT%2B5Zqk8Shar8dUVYFP2w5F7E8lLOUh2kt5kjRHFZ10tUU0lDO56vzjoT8CAC%2BxrYhj8%2Be6keZJYdwNrZDIYiGH4IiHqTCyFq%2FmO84N49TIZGY6nFnBBp9BAQ0CmDQNKgu0MJKRj%2FU85cjFKGlH5%2B7HqHRFvKwMioAKhLun%2Bc51G0obvPfaH5k7MKiI2NjsRMKG00LMGOqcBLP%2BQeZy%2FhNikX%2FOM7egw%2F%2Ft9IirOaeWWR6SESa5gRDuGpk7tz%2BkpfkJaSFQihZ6ArF4gY85uFXlhLcJCrXUYlxmvhYTCnYoYSWsbdcy6yfuO4W74g4DBTezU1lWtgFef%2BxdzWUnULFXLvtVlYEKer2osEne8pMUqlAZU8XWtVazFTL%2FhmmFHqawgEcVblWORe0st5ISJyWkC21zC3Lxk5VD5di4P0Mo%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAXX4LHRIUVFSMFSTM%2F20240620%2Fap-northeast-1%2Fs3%2Faws4_request&X-Amz-Date=20240620T121021Z&X-Amz-SignedHeaders=host&X-Amz-Expires=1800&X-Amz-Signature=b0b40b1dd1748cc137d5e772bcce1d03145743c7262ed53dcb902f5c6f56d5cb) |
図表2 |
![222495-2.jpg](https://s3-agre-content.s3.ap-northeast-1.amazonaws.com/assets/images/seika_chart/222495-2.jpg?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEJz%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaDmFwLW5vcnRoZWFzdC0xIkYwRAIgexKtZIjL%2FjgMogO2RQNLobfUOvlzG%2BlHwPq2jUYxwHkCIFXm8qPfzcPwfa25%2BaY8bWoY8aMbNGIm8tn3xTPqJ0iMKpAECEUQAhoMNTMyMzMxMDcyMDQxIgxgmjxSHCFRjPH59XEq7QP8WyIHtDta%2BkQQmUv9P3fbHJvH%2B08dc%2F5Z1QJppkpwAaoRyZx7imlavfc1KJiyEnKnV4mrKV%2BGD5vviAXGa%2FSXZ%2FQFbgCpyHC9bMjj6apN2CHTerEYtUbtG9zW%2FmITJow3LAubJl%2FZ7AYqPMckDxmad8JdNcyw0WA1z1sSvcgJagbW%2Fc34svoO4EdgOg2J2ofptKgaTUFkpNIW60X7rDq%2F3o033giz9Q4qBlmLuTS8ga4b3Fl7VK9rMiZmVprSH88UaspGCNFziocrjO56rV4ve8rOvAeVsx6%2F0Fvwm2%2BJMAdB78VFUcNZYKgizyPMj1KiWEtyeDLXEsDYm7lK74es66CrLBWSaMHsKzYsH383bsI8r5nw%2BzERE4I6rJN5t1c2mrcXN6CORdhJ6KY0wYpwsz%2FMF5RWUkeNpFYjzdsE2w5lVMEA97TAPJHUotTGdO89GdroXL75%2FHIpukRVMT%2B5Zqk8Shar8dUVYFP2w5F7E8lLOUh2kt5kjRHFZ10tUU0lDO56vzjoT8CAC%2BxrYhj8%2Be6keZJYdwNrZDIYiGH4IiHqTCyFq%2FmO84N49TIZGY6nFnBBp9BAQ0CmDQNKgu0MJKRj%2FU85cjFKGlH5%2B7HqHRFvKwMioAKhLun%2Bc51G0obvPfaH5k7MKiI2NjsRMKG00LMGOqcBLP%2BQeZy%2FhNikX%2FOM7egw%2F%2Ft9IirOaeWWR6SESa5gRDuGpk7tz%2BkpfkJaSFQihZ6ArF4gY85uFXlhLcJCrXUYlxmvhYTCnYoYSWsbdcy6yfuO4W74g4DBTezU1lWtgFef%2BxdzWUnULFXLvtVlYEKer2osEne8pMUqlAZU8XWtVazFTL%2FhmmFHqawgEcVblWORe0st5ISJyWkC21zC3Lxk5VD5di4P0Mo%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAXX4LHRIUVFSMFSTM%2F20240620%2Fap-northeast-1%2Fs3%2Faws4_request&X-Amz-Date=20240620T121021Z&X-Amz-SignedHeaders=host&X-Amz-Expires=1800&X-Amz-Signature=2fbb0e30c7e4482af0cefa11b46ab47fee2466de725593a8269620140ad9fc6e) |
図表3 |
![222495-3.jpg](https://s3-agre-content.s3.ap-northeast-1.amazonaws.com/assets/images/seika_chart/222495-3.jpg?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEJz%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaDmFwLW5vcnRoZWFzdC0xIkYwRAIgexKtZIjL%2FjgMogO2RQNLobfUOvlzG%2BlHwPq2jUYxwHkCIFXm8qPfzcPwfa25%2BaY8bWoY8aMbNGIm8tn3xTPqJ0iMKpAECEUQAhoMNTMyMzMxMDcyMDQxIgxgmjxSHCFRjPH59XEq7QP8WyIHtDta%2BkQQmUv9P3fbHJvH%2B08dc%2F5Z1QJppkpwAaoRyZx7imlavfc1KJiyEnKnV4mrKV%2BGD5vviAXGa%2FSXZ%2FQFbgCpyHC9bMjj6apN2CHTerEYtUbtG9zW%2FmITJow3LAubJl%2FZ7AYqPMckDxmad8JdNcyw0WA1z1sSvcgJagbW%2Fc34svoO4EdgOg2J2ofptKgaTUFkpNIW60X7rDq%2F3o033giz9Q4qBlmLuTS8ga4b3Fl7VK9rMiZmVprSH88UaspGCNFziocrjO56rV4ve8rOvAeVsx6%2F0Fvwm2%2BJMAdB78VFUcNZYKgizyPMj1KiWEtyeDLXEsDYm7lK74es66CrLBWSaMHsKzYsH383bsI8r5nw%2BzERE4I6rJN5t1c2mrcXN6CORdhJ6KY0wYpwsz%2FMF5RWUkeNpFYjzdsE2w5lVMEA97TAPJHUotTGdO89GdroXL75%2FHIpukRVMT%2B5Zqk8Shar8dUVYFP2w5F7E8lLOUh2kt5kjRHFZ10tUU0lDO56vzjoT8CAC%2BxrYhj8%2Be6keZJYdwNrZDIYiGH4IiHqTCyFq%2FmO84N49TIZGY6nFnBBp9BAQ0CmDQNKgu0MJKRj%2FU85cjFKGlH5%2B7HqHRFvKwMioAKhLun%2Bc51G0obvPfaH5k7MKiI2NjsRMKG00LMGOqcBLP%2BQeZy%2FhNikX%2FOM7egw%2F%2Ft9IirOaeWWR6SESa5gRDuGpk7tz%2BkpfkJaSFQihZ6ArF4gY85uFXlhLcJCrXUYlxmvhYTCnYoYSWsbdcy6yfuO4W74g4DBTezU1lWtgFef%2BxdzWUnULFXLvtVlYEKer2osEne8pMUqlAZU8XWtVazFTL%2FhmmFHqawgEcVblWORe0st5ISJyWkC21zC3Lxk5VD5di4P0Mo%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAXX4LHRIUVFSMFSTM%2F20240620%2Fap-northeast-1%2Fs3%2Faws4_request&X-Amz-Date=20240620T121021Z&X-Amz-SignedHeaders=host&X-Amz-Expires=1800&X-Amz-Signature=deab3fc4c860240554f557d02bca96bc8ba977497d31c589919e165ae375f7e2) |
図表4 |
![222495-4.jpg](https://s3-agre-content.s3.ap-northeast-1.amazonaws.com/assets/images/seika_chart/222495-4.jpg?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEJz%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaDmFwLW5vcnRoZWFzdC0xIkYwRAIgexKtZIjL%2FjgMogO2RQNLobfUOvlzG%2BlHwPq2jUYxwHkCIFXm8qPfzcPwfa25%2BaY8bWoY8aMbNGIm8tn3xTPqJ0iMKpAECEUQAhoMNTMyMzMxMDcyMDQxIgxgmjxSHCFRjPH59XEq7QP8WyIHtDta%2BkQQmUv9P3fbHJvH%2B08dc%2F5Z1QJppkpwAaoRyZx7imlavfc1KJiyEnKnV4mrKV%2BGD5vviAXGa%2FSXZ%2FQFbgCpyHC9bMjj6apN2CHTerEYtUbtG9zW%2FmITJow3LAubJl%2FZ7AYqPMckDxmad8JdNcyw0WA1z1sSvcgJagbW%2Fc34svoO4EdgOg2J2ofptKgaTUFkpNIW60X7rDq%2F3o033giz9Q4qBlmLuTS8ga4b3Fl7VK9rMiZmVprSH88UaspGCNFziocrjO56rV4ve8rOvAeVsx6%2F0Fvwm2%2BJMAdB78VFUcNZYKgizyPMj1KiWEtyeDLXEsDYm7lK74es66CrLBWSaMHsKzYsH383bsI8r5nw%2BzERE4I6rJN5t1c2mrcXN6CORdhJ6KY0wYpwsz%2FMF5RWUkeNpFYjzdsE2w5lVMEA97TAPJHUotTGdO89GdroXL75%2FHIpukRVMT%2B5Zqk8Shar8dUVYFP2w5F7E8lLOUh2kt5kjRHFZ10tUU0lDO56vzjoT8CAC%2BxrYhj8%2Be6keZJYdwNrZDIYiGH4IiHqTCyFq%2FmO84N49TIZGY6nFnBBp9BAQ0CmDQNKgu0MJKRj%2FU85cjFKGlH5%2B7HqHRFvKwMioAKhLun%2Bc51G0obvPfaH5k7MKiI2NjsRMKG00LMGOqcBLP%2BQeZy%2FhNikX%2FOM7egw%2F%2Ft9IirOaeWWR6SESa5gRDuGpk7tz%2BkpfkJaSFQihZ6ArF4gY85uFXlhLcJCrXUYlxmvhYTCnYoYSWsbdcy6yfuO4W74g4DBTezU1lWtgFef%2BxdzWUnULFXLvtVlYEKer2osEne8pMUqlAZU8XWtVazFTL%2FhmmFHqawgEcVblWORe0st5ISJyWkC21zC3Lxk5VD5di4P0Mo%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAXX4LHRIUVFSMFSTM%2F20240620%2Fap-northeast-1%2Fs3%2Faws4_request&X-Amz-Date=20240620T121021Z&X-Amz-SignedHeaders=host&X-Amz-Expires=1800&X-Amz-Signature=59d7f505c2d1b530263005cfb17df65d356480f1390d92ffa2fbf308d4c1e03d) |
図表5 |
![222495-5.jpg](https://s3-agre-content.s3.ap-northeast-1.amazonaws.com/assets/images/seika_chart/222495-5.jpg?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEJz%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaDmFwLW5vcnRoZWFzdC0xIkYwRAIgexKtZIjL%2FjgMogO2RQNLobfUOvlzG%2BlHwPq2jUYxwHkCIFXm8qPfzcPwfa25%2BaY8bWoY8aMbNGIm8tn3xTPqJ0iMKpAECEUQAhoMNTMyMzMxMDcyMDQxIgxgmjxSHCFRjPH59XEq7QP8WyIHtDta%2BkQQmUv9P3fbHJvH%2B08dc%2F5Z1QJppkpwAaoRyZx7imlavfc1KJiyEnKnV4mrKV%2BGD5vviAXGa%2FSXZ%2FQFbgCpyHC9bMjj6apN2CHTerEYtUbtG9zW%2FmITJow3LAubJl%2FZ7AYqPMckDxmad8JdNcyw0WA1z1sSvcgJagbW%2Fc34svoO4EdgOg2J2ofptKgaTUFkpNIW60X7rDq%2F3o033giz9Q4qBlmLuTS8ga4b3Fl7VK9rMiZmVprSH88UaspGCNFziocrjO56rV4ve8rOvAeVsx6%2F0Fvwm2%2BJMAdB78VFUcNZYKgizyPMj1KiWEtyeDLXEsDYm7lK74es66CrLBWSaMHsKzYsH383bsI8r5nw%2BzERE4I6rJN5t1c2mrcXN6CORdhJ6KY0wYpwsz%2FMF5RWUkeNpFYjzdsE2w5lVMEA97TAPJHUotTGdO89GdroXL75%2FHIpukRVMT%2B5Zqk8Shar8dUVYFP2w5F7E8lLOUh2kt5kjRHFZ10tUU0lDO56vzjoT8CAC%2BxrYhj8%2Be6keZJYdwNrZDIYiGH4IiHqTCyFq%2FmO84N49TIZGY6nFnBBp9BAQ0CmDQNKgu0MJKRj%2FU85cjFKGlH5%2B7HqHRFvKwMioAKhLun%2Bc51G0obvPfaH5k7MKiI2NjsRMKG00LMGOqcBLP%2BQeZy%2FhNikX%2FOM7egw%2F%2Ft9IirOaeWWR6SESa5gRDuGpk7tz%2BkpfkJaSFQihZ6ArF4gY85uFXlhLcJCrXUYlxmvhYTCnYoYSWsbdcy6yfuO4W74g4DBTezU1lWtgFef%2BxdzWUnULFXLvtVlYEKer2osEne8pMUqlAZU8XWtVazFTL%2FhmmFHqawgEcVblWORe0st5ISJyWkC21zC3Lxk5VD5di4P0Mo%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAXX4LHRIUVFSMFSTM%2F20240620%2Fap-northeast-1%2Fs3%2Faws4_request&X-Amz-Date=20240620T121021Z&X-Amz-SignedHeaders=host&X-Amz-Expires=1800&X-Amz-Signature=68cf79f6ae2aba3fee549fd02a80dd02cc5911faef5b755f3a3b479864461b56) |
カテゴリ |
育苗
栽培技術
ねぎ
播種
品種
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