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2.The Origin of Nicotiana tabacum
工業(yè)科技

        The origin of N. tabacum has been a challenging problem for manyplant scientists. Although it is now the most commonly grown commercialtobacco species,N. tabacum does not occur naturally in the wild state.One hypothesis is that N. tabacum arose from an in......(本文共 834 字)     [閱讀本文] >>

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