“Hoshiminori”, a new rice cultivar suitable for rice-wheat/barley double cropping

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  • 麦あと晩植栽培に適した早生・良食味の水稲新品種「ほしみのり」の育成
  • ムギ アト バンショクサイバイ ニ テキシタ ワセ ・ リョウ ショクミ ノ スイトウ シン ヒンシュ 「 ホシミノリ 」 ノ イクセイ

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Abstract

<p>“Hoshiminori”, which is a new rice cultivar with early maturing and good eating quality, was bred by the Institute of Crop Science, NARO (NICS) in 2015. This cultivar was selected from a population derived from the cross between “Kanto 209 (Satojiman)” and “Etsunan 171” conducted in 2002. The main characteristics as follows; The heading and maturing dates of “Hoshiminori” are slightly earlier than those of “Asanohikari”. The maturity is classified into “moderately early” in the Kanto region. The culm and panicle lengths are longer than “Asanohikari”, however, the number of panicles per area is less than that of “Asanohikari”. The yield of brown rice is 19% higher than “Asanohikari” in the late-transplanting yield trial tests of NICS. Its eating quality of cooked rice is equivalent to that of “Koshihikari” and is classified into “excellent”. “Hoshiminori” harbors the Summary Stvb-i gene, therefore, shows resistance to the rice stripe virus. “Hoshiminori” is expected to be suitable for late-transplanting in rice-wheat/barley double cropping areas such as the northern Kanto area.</p>

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