نتایج جستجو برای: off disease of cucumber caused by soil

تعداد نتایج: 21809472  

Journal: :کنترل بیولوژیک آفات و بیماری های گیاهی 0
حلیه حسینی دانشجوی سابق کارشناسی ارشد، گروه گیاه پزشکی، دانشکده کشاورزی، دانشگاه زابل ناصر پنجه که دانشیار، گروه گیاه پزشکی، دانشکده کشاورزی، دانشگاه زابل حسین علایی استادیار، گروه گیاه پزشکی، دانشکده کشاورزی، دانشگاه ولی عصر(عج)، رفسنجان

salinity stress is one of the most important abiotic factors that restrict the growth and yield of many plants. salinity can increasingly influence the host susceptibility, occurrence and development of plant diseases due to its negative effects on the host plants. mycorrhizal fungi are able to increase the tolerance of some plants to salinity. in this study, the biological effects of glomus mo...

Journal: :کنترل بیولوژیک آفات و بیماری های گیاهی 0
سید کاظم صباغ دانشیار گروه زیست شناسی، دانشکدۀ علوم، دانشگاه یزد شاهو ولی زاده دانشجوی سابق کارشناسی ارشد بیماری شناسی گیاهی، گروه گیاه پزشکی، دانشگاه زابل

damping-off disease of cucumber caused by soil-born fungi pythium aphanidermatum is one of the most destructive diseases of cucumber. in this research, the effect of three bio-fertilizers including; nitroxin, mycorrhiza and vermicompost in single and combined form on induced resistance and yield components in greenhouse cucumber (es-2862) infected with damping-off disease was investigated. thes...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1392

gol-e-gohar iron ore mine of sirjan in southern part of iran is a large open pit that operates below the groundwater table and during mining operation, dewatering is required to prevent operation processes from flooding. current operation is going on by digging wells in or out of the pit and pumping to prevent flooding. as a result of the former dewatering operation a vast deep cone of depressi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی شیمی 1391

there is no doubt that human being needs to become integrated with industry and industry needs to be progressed, daily. on the other hand, serious events in industrial units specially in oil industries has been shown that such damages and events are industry related ones. the consequence of such events and damages which resulted in chemical and poisoned explosions and loss of life and property ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی عمران 1392

abstract in aggregate, active forms of reactive silica with mineral names are sometimes associated with sand and gravel in concrete mixture. alkali hydroxides originated from alkalis in the cement or other resources form an alkaline silica gel with this reactive silica which becomes swallowed and expanded during time causing damage to concrete. there have been growing researches on alkaline r...

Journal: :International journal of economic plants 2021

Cucumber (Cucumis sativus L.) wilt is an important disease caused by Fusarium oxysporum. The prevalent in most of the countries world with yield losses ranging from 40–70%. Characteristic symptoms include pre and post-emergence damping-off, stunting, chlorosis, necrosis finally wilting older leaves brown vascular discoloration. Two formae speciales F. oxysporum have been described cucumber. fun...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده ادبیات و علوم انسانی 1393

abstract target-oriented approaches to translation studies are regarded as recent theories of translation. one of the most famous theories among these approaches is descriptive translation studies presented by toury (1995). this theory gives a new dimension to translation studies and gives importance to the descriptive rather than prescriptive studies. it also identifies three sets of transla...

Journal: :caspian journal of environmental sciences 2005
m. montazeri h. hamdollah-zadeh

damping off caused by rhizoctonia solani (isolate ag4) constrains growing soybean in the north iranian province of golestan. the pathogen was grown on malt agar containing 0, 50, 100 or 200 ppm trifluralin then its vegetative growth and virulence were evaluated. the response of soybean cv. williams seedlings grown in soil containing 0, 0.5, 1 and 2 ?g ai g-1 trifluralin was investigated. on mal...

2017
Jun Zhao Zhong Mei Xu Zhang Chao Xue Chenzhi Zhang Tengfei Ma Shusheng Zhang

Cucumber plants subjected to consecutive monoculture for 9 years were found to suffer from severe Fusarium wilt disease, caused by the soil-borne fungus Fusarium oxysporum f. sp. Cucumerinum J. H. Owen. In the present study, greenhouse experiments were performed to evaluate the influence of ammonia gas fumigation on Fusarium wilt suppression, fungal abundance and fungal community composition. R...

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