广东甘蔗根结线虫病的病原鉴定及致病性研究
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IDENTIFICATION OF THE PATHOGEN OF THE ROOT-KNOT NEMATODE DISEASE IN SUGARCANE IN GUANGDONG PROVINCE
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    摘要:

    广东甘蔗主产区湛江、番禺等地根结线虫病的主要病原线虫是南方根结线虫,此线虫以二龄幼虫侵染甘蔗的幼嫩新根,在中柱形成5 ̄6个巨型细胞,并引起细胞过度分裂形成大小不等的根瘤。患病植株根部容易腐烂,地上部生长衰弱,在中等病田,施用杀线剂防治此病可增产10.7%。

    Abstract:

    The Meloidogyne incognita has become the most important pathogen of theroot-knot nematode disease of sugarcane in Zhanjiang and Panyu ofGuangdong.Second-stage of the species infected the roots of young shoot ofsugarcane.Five or six giant cells formed in the stele.Adjacent cells were stimulatedto divide resulting in forming either big or small root-knots.Root systems ofsugarcane plant infested by the disease were easily decay;stalks were thin and short;the foliages became yellowish in color that resembled the plant with deficient in ap-plied at 4.5kg(ai)/hm2 increased 10.7 percent in yield.

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黎少梅 冯志新.广东甘蔗根结线虫病的病原鉴定及致病性研究[J].华南农业大学学报,1995,(1):54-57

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