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    廣東省煙草種質資源特征分析

    Characteristic Analysis of Tobacco Germplasm Resources in Guangdong

    • 摘要: 為更好地了解和利用所保存的煙草種質資源,，2007 年對86 份烤煙種質資源的主要性狀進行了研究，試驗設兩次重復,，每小區(qū)種植22 株,，各小區(qū)隨機調查5 株。結果表明,，主要性狀差異表現在株高,、莖圍、節(jié)距,、葉數,、葉長、葉寬等性狀,，其變幅分別為110.4～326.2 cm,、6.3～12.9 cm、2.5～8.8 cm,、15.2～59.0 片,、42.3～77.2 cm、16.0～38.0cm,，變異系數分別為13.5%, 9.4%, 21.2%, 17.1%, 10.3%, 13.6%,，Shannon 指數分別達到2.090, 2.133, 2.167, 1.916, 2.172 和2.189。說明廣東省烤煙種質資源在主要性狀方面具有豐富的遺傳多樣性,，大部分資源的主要性狀可供育種工作者選擇利用,。

       

      Abstract: In order to well understand and utilize the conserved tobacco germplasm resources, the main characters of 86 flue-cured tobacco germplasms were studied in 2007. The results showed that the main characteristic difference occurred in plant height, stem, leaf number, pitch, leaf length and leaf width, ranging in 110.4-326.2 cm, 6.3-12.9 cm, 2.5-8.8 cm, 15.2-59.0 leaves, 42.3-77.2 cm, 16.0-38.0 cm, respectively, and the coefficients of variation were 13.5 %, 9.4%, 21.2%, 17.1%, 10.3%, 13.6%, respectively. The Shannon index reached 2.090, 2.133, 2.167, 1.916, 2.172 and 2.189, respectively. It is concluded that the resources in the main characters of flue-cured tobacco have high level genetic diversity, and the main characters of most resources are available for breeders.

       

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