نتایج جستجو برای: erysiphe betae

تعداد نتایج: 893  

ژورنال: چغندرقند 2007

به منظور بررسی گسترش آلودگی ویروس رگبرگ زردی نکروتیک چغندرقند و ناقل آنPolymyxa  betae Keskin  در منطقه مرودشت در استان فارس، تعداد 353 نمونه تصادفی و 124 نمونه از گیاهان دارای علائم رایزومانیا در تابستان سال 1383 جمع‌آوری گردید. به وسیله آزمون‌های سرولوژیکی ساندویچ سه طرفه الیزا و با استفاده‏از پادتن تک‏سویه ویروس، وجود ویروس به ترتیب در 2/48درصد و 81درصد از نمونه‌های تصادفی و علائم‏دار ردیابی...

Journal: :Applied and environmental microbiology 1997
I Grondona R Hermosa M Tejada M D Gomis P F Mateos P D Bridge E Monte I Garcia-Acha

Monoconidial cultures of 15 isolates of Trichoderma harzianum were characterized on the basis of 82 morphological, physiological, and biochemical features and 99 isoenzyme bands from seven enzyme systems. The results were subjected to numerical analysis which revealed four distinct groups. Representative sequences of the internal transcribed spacer 1 (ITS 1)-ITS 2 region in the ribosomal DNA ge...

Journal: :International journal of systematic and evolutionary microbiology 2009
Kristina Lindström J P W Young

Minute 3. New taxa. New taxa described since the last meeting on 4 July 2001 are Bradyrhizobium yuanmingense Yao et al. [Int J Syst Evol Microbiol 52 (2002), 2219–2230], Bradyrhizobium betae Rivas et al. [Int J Syst Evol Microbiol 54 (2004), 1271–1275], Rhizobium indigoferae Wei et al. [Int J Syst Evol Microbiol 52 (2002), 2231–2239], Rhizobium loessense Wei et al. [Int J Syst Evol Microbiol 53...

Journal: :Plant physiology 1981
G M Williams P G Ayres

Net photosynthesis is stimulated in third seedling leaves of barley plants whose lower two leaves are heavily infected by Erysiphe graminis f.sp. hordei Marchal. Stimulation is greater in water-stressed than in well-watered plants. In stressed, but not in well-watered plants, stimulation is associated with the maintenance of high leaf water potential and high leaf conductance. A small part of t...

ژورنال: :چغندرقند 2005
مهیار شیخ الاسلامی سید محمود اخوت قربانعلی حجارود عباس شریفی تهرانی مارتین زایدل

در این مطالعه 105 جدایه قارچ عامل سفیدک سطحی چغندرقند از مناطق مختلف کشور جمعﺁوری و مورد بررسی قرار گرفت.استخراج dna از آسکوکارپﻫا با استفاده از محلول پنج درصد  chelex100 انجام شد.نواحی فاصلهﺳاز بین ژنﻫای ریبوزومی به همراه قطعه  s 8/5 توسط آغازگرهایits1وits4 از طریق واکنش زنجیره ای پلیمراز تکثیر شده و روی آگارز 5/1 درصد ارزیابی گردیدند.محصول pcrتمام جدایهﻫا شامل یک قطعه با بزرگی  645 جفت بازی ب...

Journal: :journal of agricultural science and technology 2010
t. anand a. chandrasekaran s. kuttalam t. raguchander r. samiyappan

the compatibility studies of pseudomonas fluorescens (pf1) with azoxystrobin at differ-ent concentrations viz., 100, 150, 200, 250 and 300 ppm revealed that it was compatible with all the concentrations of azoxystrobin tested and the growth of the bacterium was unaffected even at the maximum concentration of 300 ppm. the field experiment revealed a foliar application of pf1 (2.5 kg ha-1) and az...

2007
P. K. Mishra B. K. Sarma P. K. Singhai U. P. Singh

Antifungal activity of 2-hydroxy 4,4'6'trimethoxy chalcone individually was tested against spore germination of ten fungi of different genera. Efficacy of the chemical was also tested against conidial germination and other growth parameters of Erysiphe pisi on excised pea leaves. 2-Hydroxy 4,4'6'trimethoxy chalcone inhibited spore germination at all the concentrations. Maximum inhibition was ob...

Journal: :New Disease Reports 2021

Lagerstroemia indica is a widely grown ornamental shrub or small tree that has become naturalised and invasive in many tropical subtropical regions of the world. often used to provide shade around parking areas, for median strip plantings along roads, also planted domestic gardens (CABI, 2019). The was introduced 2007 improve landscaping Tashkent, Uzbekistan. Between August October 2020, powder...

2007
S. Ameer Basha R. N. Jha V. B. Pandey U. P. Singh

1-Corydalmine,an alkaloid isolated from roots of Corydalis chaerophylla inhibited spore germination of some plant pathogenic as well as saprophytic fungi e.g. Alternaria brassicae, A. brassicicola, A. solani, Curvularia lunata, C. maculans, C. sp., C. pallscens, Erysiphe pisi, Fusarium udum, Helminthosporium species,H. penniseti and a Heterosporium species. 1-Corydalmine significantly inhibited...

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