نتایج جستجو برای: off of rhizoctonia solani ag

تعداد نتایج: 21182777  

Journal: : 2022

In August 2021, we surveyed diseases of wild vegetables grown in Taebaek, Gangwon Province, Korea. During the disease survey, observed severe damping-off symptoms young edible aster (<i>Aster scaber</i>) plants a vinyl greenhouse investigated. The incidence ranged from 5% to 20%. Diseased were collected greenhouse, and fungi isolated petiole lesions diseased plants. <i>Rhizoct...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم کشاورزی و منابع طبیعی ساری - دانشکده علوم کشاورزی 1392

پکتین ساختار هتروپلی ساکاریدی موجود در دیواره سلولی گیاهان است که دارای نقش های متنوعی در فیزیولوژی ، رشد ، چسبندگی و جدا شدن سلول ها دارد. آنزیم ها پروتئین هایی در نقش کاتالیزور هستند که توسط منابع میکروبی مانند قارچ ها ، باکتری ها ، نماتدها و غیره تولید شده که در مراحل آلوده سازی میزبان گیاهی ترشح آنزیم ها ضروری می باشد. پکتینازها نیز جزئی از آنزیم های خارج سلولی اولیه توسط پاتوژن های گیاهی ا...

2017
Nguyen Van Minh E-Eum Woo Gang-Seon Lee Dae-Won Ki In-Kyoung Lee Sang-Yeob Lee Kyeonghun Park Jaekyeong Song Jae Eul Choi Bong-Sik Yun

Ginseng damping-off, caused by the fungal pathogens Rhizoctonia solani and Pythium sp., is a critical disease in ginseng seedling. In a continuing effort to find microorganisms with the potential of acting as a biocontrol agent against Rhizoctonia damping-off, we found that a Streptomyces sp. A501 showed significant antifungal activity against Rhizoctonia solani. In field experiment to test the...

2015

Rhizoctonia stem canker and black scurf. Rhizoctonia diseases of potato are caused.Black scurf on a potato tuber caused by Rhizoctonia solani. Rhizoctonia potato disease is an important constraint to potato production. The disease.ISBN 978-952-10-5475-4 PDF http:ethesis.helsinki.fi. 2 Variation of biological traits in Rhizoctonia solani isolated from potato. Abstract Rhizoctonia solani is an im...

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...

Journal: :Phytopathology 2011
Jolien D'aes Gia Khuong Hoang Hua Katrien De Maeyer Joke Pannecoucque Ilse Forrez Marc Ongena Lars E P Dietrich Linda S Thomashow Dmitri V Mavrodi Monica Höfte

Pseudomonas CMR12a was previously selected as an efficient biocontrol strain producing phenazines and cyclic lipopeptides (CLPs). In this study, biocontrol capacity of Pseudomonas CMR12a against Rhizoctonia root rot of bean and the involvement of phenazines and CLPs in this ability were tested. Two different anastomosis groups (AGs) of Rhizoctonia solani, the intermediately aggressive AG 2-2 an...

Journal: :Annual Report of The Kansai Plant Protection Society 2004

2015
Suli Sun Changjian Xia Jiqing Zhang Canxing Duan Xiaoming Wang Xiaofei Wu Suk-Ha Lee Zhendong Zhu

During late August and early September 2011, stem rot symptoms were observed on adzuki bean plants (Vigna angularis) growing in fields located in Beijing and Hebei Province, China, respectively. In this study, four isolates were obtained from infected stems of adzuki bean plants. Based on their morphology, and sequence and polymerase chain reaction-restriction fragment length polymorphism (PCR-...

2015
Md. Aktaruzzaman Joon-Young Kim Tania Afroz Byung-Sup Kim

Herein, we report the first occurrence of web blight of rosemary caused by Rhizoctonia solani AG-1-IB in Gangneung, Gangwon Province, Korea, in August 2014. The leaf tissues of infected rosemary plants were blighted and white mycelial growth was seen on the stems. The fungus was isolated from diseased leaf tissue and cultured on potato dextrose agar for identification. The young hyphae had acut...

Journal: :journal of agricultural science and technology 2011
s. samavat s. samavat h. besharati k. behboudi

biotic as well as abiotic factors may influence the biocontrol activity and population density of pseudomonas fluorescens. however, limited studies have been carried out on the effects of extracellular metabolites of other competitor bacteria, especially on the biocontrol efficiency of p. fluorescens. a greenhouse experiment was conducted to evaluate the potential of the two p. fluorescens isol...

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