荷塘蕪菁根黑粉病的初步研究

    • 摘要: 一、前言广东新会县荷塘一带盛产蕪菁根用蔬菜,俗称冲菜,Brassica juncea(Linn.)Coss.,远銷国內和海外各地。蕪菁除受肿根病(Plasmodiophora brassicae Worn.)、軟腐病Erwinia carotovora(Jones)Burg.和花叶病Brassica virus 2(Turnip virusl),Hoggan and Johnson严重为害外,尚受

       

    /

    返回文章
    返回