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月季对北方根结线虫病抗性分级标准研究 被引量:1

Classification Standard of Rose Resistance to Meloidogyne hapla
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摘要 实验结果表明 ,月季对北方根结线虫抗性分级标准为 :抗病 :根结指数为 0 0~ 1 0 ,即有根结根数少于整个根的 5 % ;中等抗病 :根结指数为 1 0~ 2 0 ,即有根结根数占整个根的 5 %~ 2 0 % ;轻度感病 :根结指数为 2 0~ 3 0 ,即有根结根数占整个根的 2 0 %~ 5 0 % ;中度感病 :根结指数为 3 0~ 4 0 ,即有根结根数占整个根的 5 0 %~ 80 % ;感病 :根结指数为 4 0以上 ,即有根结根数占整个根的 80 Scoring standard of rose resistance to Meloidogyne hapla was evaluated by statistic analysis: gall index=0 1~1 0, which is equal to 5% root infected by M.hapla ; moderately resistance: gall index=1 0~2 0, 5%~20% root knot; lightly susceptible: gall index=2 0~3 0, 20%~50% root knot; moderately susceptible: gall index=3 0~4 0, 50%~80% root knot; susceptible: gall index>4.0, more than 80% root knot.
出处 《云南农业大学学报》 CAS CSCD 2002年第4期347-351,共5页 Journal of Yunnan Agricultural University
关键词 月季 北方根结线虫病 抗性分级标准 Meloidogyne hapla classification standard resistance rose
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