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oai:repository.naro.go.jp:00001721 2023-05-15T23:19:13Z 87:647:648:57:365

難裂莢性を導入した大豆新品種「フクユタカA1 号」の育成 Development of a New Soybean Cultivar, “Fukuyutaka A1 gou,” with Pod Dehiscence Resistance 羽鹿, 牧太 ハジカ, マキタ HAJIKA, Makita 船附, 秀行 フナツキ, ヒデユキ FUNATSUKI, Hideyuki 山田, 哲也 ヤマダ, テツヤ YAMADA, Tetsuya 髙橋, 浩司 タカハシ, コウジ TAKAHASHI, Koji 平田, 香里 ヒラタ, カオリ HIRATA, Kaori 菱沼, 亜衣 ヒシヌマ, アイ HISHINUMA, Ai 大木, 信彦 オオキ, ノブヒコ OKI, Nobuhiko 山田, 直弘 ヤマダ, ナオヒロ YAMADA , Naohiro 小巻, 克巳 コマキ, カツミ KOMAKI, Katsumi 松永, 亮一 マツナガ, リョウイチ MATSUNAGA, Ryoichi ダイズ 難裂莢 DNA マーカー pdh1 戻し交配 soybean pod dehiscence DNA marker pdh1 backcross 「フクユタカA1 号」は、「フクユタカ」の裂莢性改善を目標として、DNA マーカーによる難裂莢遺伝子導入個体の選抜と「フクユタカ」への5 回の戻し交配を組み合わせて育成した品種である。 　裂莢性以外の成熟期、耐倒伏性、タンパク質含量などの主要な形質は「フクユタカ」とほぼ同等である。難裂莢性を備えているため、刈り遅れ時の自然裂莢が少なく、コンバイン収穫時の実質的な収量増が期待できることから、2014 年に「フクユタカA1号」と命名し、品種登録出願を行った。 The yield of soybean production in Japan is significantly lower than the world average. Two of the causes are natural pod dehiscence and loss during combine harvesting. Of the land in Japan cultivated with soybean, “Fukuyutaka” occupies the largest area, and this cultivar is especially widely grown in the southwest of the country. Since its release in 1980, it has shown a high yield potential and good suitability for tofu processing; therefore, it is in high demand. However, “Fukuyutaka” is susceptible to pod dehiscence at maturity, and losses occur through a combination of a high level of natural pod dehiscence and combine harvesting. Our aim was to improve “Fukuyutaka,” and we developed “Fukuyutaka A1 gou” by DNA marker assisted selection using markers related to pod dehiscence (pdh1) and backcrossing five times with “Fukuyutaka.” Except for pod dehiscence susceptibility, other major agronomic traits of “Fukuyutaka A1 gou,” such as flowering time, maturation time, lodging resistance, unit yield, and protein content, are almost the same as “Fukuyutaka.” Further, the suitability for tofu processing is similar to that of “Fukuyutaka.” In field trials, the total yield of “Fukuyutaka A1 gou,” including harvesting losses, was equivalent to that of “Fukuyutaka,” but the yield from combine harvesting was clearly higher than “Fukuyutaka.” For this reason, by replacing “Fukuyutaka” with “Fukuyutaka A1 gou,” it is expected that the soybean yield in southwest Japan would be improved for the benefit of farmers, and we have applied for cultivar registration as “Fukuyutaka A1 gou.” 国立研究開発法人 農業・食品産業技術総合研究機構 National Agriculture and Food Research Organization (NARO) 2019-03-31 jpn departmental bulletin paper https://doi.org/10.24514/00001679 https://repository.naro.go.jp/records/1721 10.24514/00001679 10.24514/00001679 2432-8065 農研機構研究報告　次世代作物開発研究センター BULLETIN OF THE NARO, CROP SCIENCE 2 1 34 https://repository.naro.go.jp/record/1721/files/CS_2_1.pdf application/pdf 3.6 MB 2019-03-18