نتایج جستجو برای: rhizoctonia solani ag 2 2

تعداد نتایج: 2558753  

2005
M. F. Cohen H. Yamasaki M. Mazzola

A low glucosinolate content (21.8 mmol g) Brassica napus seed meal (RSM) applied to orchard soils altered communities of both pathogenic and saprophytic soil micro-organisms. RSM amendment reduced infection by native and introduced isolates of Rhizoctonia spp. and recovery of Pratylenchus spp. from apple roots. Root infection by Rhizoctonia solani AG-5 was also suppressed in split-root assays w...

Journal: :Phytopathology 2003
Paulo C Ceresini H David Shew Rytas J Vilgalys Liane Rosewich Gale Marc A Cubeta

ABSTRACT The relative contribution of migration of Rhizoctonia solani anastomosis group 3 (AG-3) on infested potato seed tubers originating from production areas in Canada, Maine, and Wisconsin (source population) to the genetic diversity and structure of populations of R. solani AG-3 in North Carolina (NC) soil (recipient population) was examined. The frequency of alleles detected by multilocu...

Journal: :Communications in agricultural and applied biological sciences 2004
Parissa Taheri Sam Gnanamanickam Monica Höfte

Rhizoctonia sheath diseases of rice, comprising sheath blight, sheath spot and aggregate sheath spot, cause significant yield losses in many rice-growing regions of the world. The emergence of Rhizoctonia sheath diseases as economically important rice diseases is of recent date and has been attributed to the intensification of rice-cropping systems with the development of new short-stature, hig...

Journal: :چغندرقند 0
اکرم صادقی مربی پژوهشی پژوهشکده بیوتکنولوژی کشاورزی

biological control of sugar beet damping-off of rhizoctonia solani ag-4 by two native streptomyces isolates (s2 and c) was evaluated in green house and field conditions. in dual culture, two streptomyces isolates inhibited mycelial growth of r. solani ag-4. besides, volatile components of s2 and c inhibited r. solani mycelial growth for 72 and 74 percentages, respectively. soil treatment either...

2007
Phillip Wharton

Rhizoctonia stem canker and black scurf diseases of potato are caused by the fungus Rhizoctonia solani Kühn (teleomorph Thanatephorus cucumeris [A. B. Frank] Donk) and can be found on all underground parts of the plant at various times during the growing season. Rhizoctonia solani (Deuteromycetes, Mycelia Sterilia) is a species complex of 13 anastomosis groups (AGs), which are categorized accor...

2017
Yuanyuan Huang Zhansheng Wu Yanhui He Bang-Ce Ye Chun Li

This study aimed at evaluating the ability of SL-44 to control Rhizoctonia solani and promote pepper (Capsicum annuum) growth. Strain SL-44 was isolated from plant rhizosphere and the pot experiment results indicated that the dry and fresh weights of pepper in SL-44 and Rhizoctonia solani (S-R) treatment were 45.5% and 54.2% higher than those in Rhizoctonia solani (R) treatment and 18.2% and 31...

ژورنال: :گیاه پزشکی 0
الهام کریمی گروه بیماری شناسی گیاهی، دانشکده کشاورزی، دانشگاه تربیت مدرس ناصر صفایی هیات علمی دانشگاه تربیت مدرس مسعود شمس بخش گروه بیماری شناسی گیاهی، دانشکده کشاورزی، دانشگاه تربیت مدرس سیدباقر محمودی موسسه تحقیقات چغندر قند

بیماری مرگ گیاهچه چغندرقند ناشی از rhizoctonia solani یکی از مهم ترین بیماری های چغندرقند است که خسارت های اقتصادی زیادی به تولید کنندگان این محصول وارد می کند. در این تحقیق، توانایی بیوکنترلی 16 جدایه تریکودرما و یک جدایه piriformospora indica مقابل r. solani ag-2-2 در شرایط درون شیشه ای و گلخانه مورد بررسی قرار گرفت. از بین جدایه های مورد بررسی دو جدایه trichoderma harzianum 65 و trichoderma ...

2015
Craig J. Sturrock James Woodhall Matthew Brown Catherine Walker Sacha J. Mooney Rumiana V. Ray

Rhizoctonia solani is a plant pathogenic fungus that causes significant establishment and yield losses to several important food crops globally. This is the first application of high resolution X-ray micro Computed Tomography (X-ray μCT) and real-time PCR to study host-pathogen interactions in situ and elucidate the mechanism of Rhizoctonia damping-off disease over a 6-day period caused by R. s...

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