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Improvement of Helminthosporium gramineum Rabenh f.sp.echinochloae with UV radiation
Author(s): 
Pages: 372-375
Year: Issue:  5
Journal: ACTA AGRICULTURAE ZHEJIANGENSIS

Keyword:  禾长蠕孢HGE紫外诱变突变菌株M3RAPD-PCR分析;
Abstract: 为进一步提高稗草生防潜力菌HGE的杀草活性,本文采用紫外诱变的方法对该菌种进行改良.结果表明:经筛选获得2株产孢量提高的突变菌株M3和M7.其中M3在培养14 d后的产孢量比出发菌株HGE提高了21.3%,对稗草株高、植株鲜重和干重的抑制率分别提高了20.9%,12.0%和24.7%.作物安全性试验发现M3对水稻等6种作物安全.RAPD-PCR结果显示,突变菌株M3的遗传物质已经发生了改变.
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