Pre and Post Emergencies Damping off in Cotton
نویسندگان
چکیده
منابع مشابه
Effect of Seed Quality and Combination Fungicide-Trichoderma spp. Seed Treatments on Pre- and Postemergence Damping-Off in Cotton.
ABSTRACT Good quality seeds of cotton cultivars often escaped pre-emergence damping-off incited by Pythium spp. and Rhizopus oryzae, and they were resistant to postemergence damping-off incited by Rhizoctonia solani. Poor quality seeds, however, were highly susceptible to both phases of seedling disease and required seed treatment in order to survive. Pre-emergence damping-off incited by Pythiu...
متن کاملeffects of two systemic insecticides on damping-off pathogens of cotton
in vitro and greenhouse studies were conducted to investigate the possibility of an interaction between two systemic insecticides of: thiodicarb (larvin df 80) and imidacloprid (guacho sw 70), and seedling disease organisms of: rhizoctonia solani, fusarium moniliforme and pythium ultimum. when in vitro concentrations of imidacloprid and thiodicarb were applied, a fungistatic activity occurred. ...
متن کاملdefense responses of cotton to trichoderma spp. and its influence in control of seedling damping-off by rhizoctonia solani
damping-off of seedling is a major disease of cotton in iran. disease may become epidemic in soil with low temperature and high moisture if seed treatment isn’t done. recently, trichoderma spp. are considered as one of the biological control methods of seedling damping-off. one proposed mechanism for biocontrol in trichoderma spp. is stimulation of host defense responses and induction of resist...
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In mammals, X chromosome expression is balanced in females and males by shutting off one of the two X chromosomes in each cell of a female [1]. This process of X inactivation involves epigenetic regulation, characterised by repressive modifications to DNA and chromatin, late replication of the inactive X and the expression of an untranslated RNA, Xist, which coats one of the X chromosomes in ci...
متن کاملA comparison between acid seed delinting and fungicide seed treatment in controlling cotton seedling damping-off disease*
Seed decay (rot) and seedling damping-off caused by Rhizoctonia solani are among the most important diseases of cotton which result in the significant yield reduction, application of expensive and harmful chemical fungicides and most importantly contamination of soil and agricultural environment. This study was conducted to investigate the possible efficacy of cotton seed delinting in the reduc...
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ژورنال
عنوان ژورنال: Plant Pathology Journal
سال: 2006
ISSN: 1812-5387
DOI: 10.3923/ppj.2006.51.53