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Breakdown of resistance in cotton to cotton leaf curl disease in Pakistan

机译:巴基斯坦的棉花对棉卷叶病的抵抗力下降

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摘要

Cotton leaf curl disease (CLCuD),a devastating disorder of cottonin Pakistan,is caused by a whitefly-transmitted begomovirus (Cotton leaf curl virus;CLCuV)that requires a satellite DNA beta to cause disease symptoms (Mansoor et al.,1993;briddon et al.,2001).ClCuD-resistant cotton varieties,in which no virus can be detected,have been developed through conventional breeding (Rahmen et al.,2002).During the 2001 growing season,symptoms of CLCuD were obserdved on all hitherto resistant varieties at Burewala,district Vehari,Pakista,and by 2002 disease symptoms were seen throughout the district.
机译:棉叶卷曲病(CLCuD)是巴基斯坦的毁灭性棉花疾病,是由粉虱传播的bemomovirus(棉叶卷曲病毒; CLCuV)引起的,该病毒需要卫星DNA beta引起疾病症状(Mansoor等,1993; briddon)等人,2001)。通过常规育种已经开发出了不能检测到病毒的耐ClCuD的棉花品种(Rahmen等人,2002)。在2001年的生长期,迄今所有的CLCuD症状都被观察到。在Burewala,Vehari区,Pakista区有抗药性品种,到2002年,该地区出现了疾病症状。

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