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    CUI Changfan, WU Guohe, JIN Yanji, SUN Lijuan, XUAN Shouxue, JIN Ailan, GAO Chong, JIN Hongshi, FANG Dongguo, JIN Shiying, JIN Zhengyi. Breeding and Selection of New Flue-cured Tobacco Variety Jiyan 9 and its Characteristics[J]. CHINESE TOBACCO SCIENCE, 2009, 30(2): 7-14.
    Citation: CUI Changfan, WU Guohe, JIN Yanji, SUN Lijuan, XUAN Shouxue, JIN Ailan, GAO Chong, JIN Hongshi, FANG Dongguo, JIN Shiying, JIN Zhengyi. Breeding and Selection of New Flue-cured Tobacco Variety Jiyan 9 and its Characteristics[J]. CHINESE TOBACCO SCIENCE, 2009, 30(2): 7-14.

    Breeding and Selection of New Flue-cured Tobacco Variety Jiyan 9 and its Characteristics

    • Jiyan 9, a new flue-cured tobacco variety developed through pedigree selection by crossing 9501, a flue-cured tobacco line with good resistance to disease and stress, easy to cure and high yield, and Windel, an introduced variety from Canada, passed tobacco variety evaluation of Jilin Province and China respectvely in January, 2006 and October, 2007. The flue-cured leaves were mainly in orange or golden color, rich oil, appropriate thickness with loose structure. The contents of total sugar and nicotine were 26.59% and 1.78%, respectively, and the ratio of reducing sugar to nicotine reached 13.09. The content and ratio of major chemical components were suitable. The cured leaves featured neutral to faint scent with full aroma and flavor. The average yield and output value were 2 599.01 kg/hm2 and 19 221.69 yuan/hm2, respectively, which was 20.47% and 41.2% higher than that of the check NC89. Jiyan 9 showed immune to TMV, moderate resistance to root-knot nematode and PVY, low resistance to black shank, and similar resistance to other diseases with NC89. Jiyan 9 had the characteristics of favorable resistances to drought, waterlogging, chilling and early flowering, also good tolerance to high fertilizer rate and curing, and the leaves were easy to cure.
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