黄萎病菌侵害对陆地棉品种主要性状的影响.pdfVIP

中国农学通报2000年第16卷第6期 黄萎病菌侵害对陆地棉品种主要性状的影响+ 张桂寅 马峙英 (河北农业大学 保定071001) 提要从品种资源角度研究了棉花黄萎病菌侵害对陆地棉品种主要性状的影响。在黄萎病菌侵 害下，单株结铃数、果枝数大幅度减少，单株结铃数分布明显发生变化。黄萎病菌侵害改变了一 些性状的相关关系。由非侵害状态下单株结铃数与衣分的正相关、与籽指的负相关改变为侵害状 态下与衣分的相关不显著，与籽指呈显著正相关；在黄萎病菌侵害与非侵害状态下果枝数、单株 结铃数及衣分相关不显著，而单铃重、籽指及纤维长度呈极显著正相关。 关键词陆地拂黄萎病品种侵害相关 m Charactersof CottonInfectedVet位／／V．umDahliae am鸣∞ofMajor Upland by Ma 2lmngGuiyinZhiying ’ (蚴d卵∞hdUniters妙Baoding071001) were Abstract1k of charaetesstudiedfor cottoninfectedvertieilliumdahliae．ne changesmajor upland by nUlXltbeTofbolls andfruitbranchesinfectedwiltdisease thanthat theconditionI|O perplant by weIeless on of bolls of —infectionandtherewereobvious fh distribution eorrelations啦Ilecharacters changes perplant．T11e w／m bolls werea correlationwithlint anda dljm耐．11leperplant significantp06itive percent negative correlationwi￡hseedindexOr／出econditionofno—infection删eit wit}llint we砖not correlation si删ifieant and correlationwithseedindexunderinfectedcondition．Whetherinfectionorno—infection． percentpositive therewereFiocorreLationwithfi-uit andlint branches、bolls perplant percent，however，asi印ificandYpositive boll correlationisexistedbetween indexandfiber weight、seed length． words cottonVenicilliumwiltVarieties Correlation