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Cold pretreatment enhances microspore embryogenesis in oilseed rape (<Emphasis Type="Italic">Brassica napus</Emphasis> L.).[J].H.H. Gu;P. Hagberg;W.J. Zhou.Plant Growth Regulation.2004, 2
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High frequency spontaneous production of doubled haploid plants in microspore cultures of <Emphasis Type="Italic">Brassica rapa</Emphasis> ssp. <Emphasis Type="Italic">chinensis</Emphasis>.[J].H.H. Gu;W.J. Zhou;P. Hagberg.Euphytica.2003, 3