"Fukuhibiki Kan 1" and " Eminoaki Kan 1" are new rice cultivars with extremely low absorption of cadmium for Tohoku region

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  • TSUDA Naoto
    Tohoku Agricultural Research Center, National Agriculture and Food Research Organization
  • OHTA Hisatoshi
    Tohoku Agricultural Research Center, National Agriculture and Food Research Organization
  • YOKOGAMI Narifumi
    Tohoku Agricultural Research Center, National Agriculture and Food Research Organization
  • FUJIMURA Kentaro
    Tohoku Agricultural Research Center, National Agriculture and Food Research Organization
  • ISHIKAWA Satoru
    Institute for Agro-Environmental Sciences, NARO Institute for Agro-Environmental Sciences, National Agriculture and 16 Food Research Organization
  • ABE Tadashi
    Institute for Agro-Environmental Sciences, NARO Institute for Agro-Environmental Sciences, National Agriculture and 16 Food Research Organization
  • FUKUSHIMA Akira
    Tohoku Agricultural Research Center, National Agriculture and Food Research Organization Central Region Agricultural Research 19 Center, National Agriculture and Food Research Organization
  • KAJI Ryota
    Tohoku Agricultural Research Center, National Agriculture and Food Research Organization Central Region Agricultural Research 19 Center, National Agriculture and Food Research Organization
  • KUROKI Makoto
    Institute of Crop Science, National Agriculture and Food Research Organization Kyushu Okinawa Agricultural Research Center, National Agriculture and Food Research Organization

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Other Title
  • カドミウム吸収性が極めて低い水稲新品種「ふくひびき環1号」・「えみのあき環1号」の育成
  • カドミウム キュウシュウセイ ガ キワメテ ヒクイ スイトウ シン ヒンシュ 「 フク ヒビキ カン 1ゴウ 」 ・ 「 エミ ノ アキ カン 1ゴウ 」 ノ イクセイ

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Abstract

<p>Two novel rice cultivars, ‘Fukuhibiki Kan 1’ and ‘Eminoaki Kan 1,’ were developed through backcrossing using ‘lcd-kmt2’ and ‘Fukuhibiki’ or ‘Eminoaki,’ started in 2012. In 2019 and 2020, the resultant lines, ‘OuuIL1’ and ‘OuuIL3,’ were evaluated to confirm their remarkably low cadmium absorption and high homogeneity. In 2021, the lines were officially registered as ‘Fukuhibiki Kan 1’ and ‘Eminoaki Kan 1’ by the Ministry of Agriculture, Forestry and Fisheries. ‘Fukuhibiki Kan 1’ and ‘Eminoaki Kan 1’ exhibit identical characteristics to ‘Fukuhibiki’ and ‘Eminoaki,’ respectively, including heading date, harvesting time, culm length, panicle length, panicle number, grain yield, eating quality, and disease resistance. Notably, the cadmium concentrations in the grain and straw of ‘Fukuhibiki Kan 1’ and ‘Eminoaki Kan 1’ were substantially lower than those of ‘Fukuhibiki’ and ‘Eminoaki’ respectively, and comparable to that of ‘Koshihikari Kan 1’ in field and pot tests. These cultivars are expected to contribute to the southern Tohoku region, where requiring cadmium mitigation countermeasures are needed.</p>

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