@article{oai:repository.naro.go.jp:00001818, author = {上山, 泰史 and UEYAMA, Yasufumi and 桂, 真昭 and KATSURA, Masaaki and 松浦, 正宏 and MATSU-URA, Masahiro and 大山, 一夫 and OOYAMA, Kazuo and 佐藤, 信之助 and SATO, Shinnosuke}, journal = {九州沖縄農業研究センター報告, Bulletin of the NARO Kyushu Okinawa Agricultural Research Center}, month = {Dec}, note = {A new oat cultivar, "Haeibuki," was bred for silage or green fodder in Kyushu National Agricultural Experiment Station, registered as Norin No. 9 Oat, and released by the Ministry of Agriculture, Forestry and Fisheries in 1996. Haeibuki was developed from the progeny of a cross between Guelatao and Hayate bred in 1988. The breeding objective was to improve the productivity and advance the growth stage at harvest for fall cultivation sown in late summer and harvested in early winter. The main agronomic characteristics of Haeibuki are summarized as follows. The heading date of Haeibuki in fall is earlier than those of Akiwase and Hayate, which are the standand early varieties. The growth stage at harvest in early winter extends past the milky stage in the warm regions of Japan. The average yield of Haeibuki at the three fall culture locations where the adaptability trials were conducted was higher and more stable than that of Akiwase. The dry matter percentage at harvest is higher than Akiwase, and the stem and panicle lengths are shorter and there are more panicles than on Akiwase. The number of stems per m^2 is high and the leaves are erect. Haeibuki matures very early in winter cultivation, in which seed is sown in the fall and comes to heading in the spring. Therefore, it is possible to harvest the seed of Haeibuki before the early summer rainy season in the warm regions of Japan. Haeibuki can be cultivated in the fields at low altitudes for silage in fall cultivation in the Okinawa and Kyushu through the Kanto districts. Haeibuki must be sown and harvested at the optimum time in each district, which is limited by the climatic conditions of summer and early winter. For example, the optimum sowing dates in northern Kyushu are from August 25 to September 2, and in southern Kyushu from the 1 to 10 September. The harvesting time would then be the middle of December in northern Kyushu and that the middle of January in southern Kyushu. Haeibuki is cultivated in the Okinawa region from early in November to the end of February. The optimum seeding rate is between 60 and 100 kg/ha., 青刈り用エンバクの新品種「はえいぶき」は, 暖地, 温暖地で8月下旬~9月上旬に播種し年内収穫を育種目標に, 秋季に安定して出穂する「Guelatao」を種子親, 「ハヤテ」を花粉親として, 個体選抜及び系統選抜を行う集団育種法によって育成され, 1996年8月に「えん麦農林9号」として登録された。主な特性は次の通りである。秋の出穂日が「アキワセ」よりも3日, 「ハヤテ」よりも10日早い極早生で, 暖地では年内の収穫時までに乳熟期以降のステージに達する。収穫時の乾物率が高く, 九州中部以北では予乾なしで, 温暖な九州南部では乾物率の上昇が遅れるため若干の予乾処理で, ロールベールによる収穫・調製が可能である。乾物収量は「アキワセ」よりも高く, 収量の安定性にも優れている。草丈は「アキワセ」よりも低く, 茎数は多い。葉重割合が低く, 草型は立型である。採種栽培での春の出穂及び種子の成熟期は「アキワセ」「ハヤテ」よりも早く, 暖地で梅雨人り以前に採種できる。九州・沖縄から関東までの暖地・温暖地で利用でき, 各地における播種及び収穫適期は, 関束から瀬戸内海地域の暖地でそれぞれ8月下旬, 12月上旬, 九州北部で8月下旬, 12月中旬, 九州南部及び沿海部では9月上旬, 1月中旬, 沖縄で11月上旬, 2月下旬である。冠さび病抵抗性や耐倒伏性が高くないので, これらの陪害を避けるために適期播柿及び収穫を行うことが重要である。播種量は青刈りエンバクの標準的な0.6~1.0kg/aとする。}, pages = {1--13}, title = {青刈り川エンバク (Avena sativa L.) 新品種「はえいぶき」の育成}, volume = {39}, year = {2001}, yomi = {ウエヤマ, ヤスフミ and カツラ, マサアキ and マツウラ, マサヒロ and オオヤマ, カズオ and サトウ, シンノスケ} }