【摘 要】
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The newly developed hybrid rice combination "Xieyou 9308" (Xieqingzao A/T9308) has been regarded as a super-high-yielding rice variety, of which the yield poten
【机 构】
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Institute of Nuclear Agricultural Sciences,China National Rice Research Institute
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The newly developed hybrid rice combination "Xieyou 9308" (Xieqingzao A/T9308) has been regarded as a super-high-yielding rice variety, of which the yield potential reached as high as 12 t/ha. However, its high shattering characteristic (as high as 60%) has limited its wider application. In the current experiment, a non-shattering mutant line, M9308, was developed from T9308 by gamma irradiation. Comparisons were made but no marked differences were found between T9308 and M9308 as well as between their F1 hybrids crossed to Xieqingzao A for major agronomic and grain quality characters as well as resistance to diseases. Genetic analysis indicated that the non-shattering character of M9308 was governed by a single recessive gene.
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