نتایج جستجو برای: leaf spots

تعداد نتایج: 106027  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - پژوهشکده کشاورزی 1392

چکیده در تابستان 1390 و پاییز 1391، از گوجه فرنگی های دارای علایم پژمردگی و لکه های آبسوخته، کلروزه و یا نکروزه روی میوه و برگ در مناطق عمده کشت این محصول در استان خراسان رضوی، نمونه برداری به عمل آمد. نمونه ها ی مشکوک به آلودگی به آزمایشگاه منتقل، و باکتری ها از برگ، میوه و آوند گوجه فرنگی های آلوده جداسازی شدند. با توجه به نتایج حاصل از آزمون های بیماریزایی 47 استرین از 150 جدایه انتخاب شدند...

Journal: Mycologia Iranica 2017

Fungal spores are continuously deposited on the leaf surfaces by wind impaction, sedimentation and rain wash-out from the atmosphere and splash-dispersal. They reside and act as asymptomatic mutualists, benign commensals or latent pathogens. A slight imbalance in this relation can lead to pathogenic phase of the fungi, resulting in a variety of symptoms on leaves viz. discoloration, blight, soo...

Journal: :International Organization of Citrus Virologists Conference Proceedings (1957-2010) 1972

Journal: :Botanical Gazette 1921

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده علوم کشاورزی 1388

چکیده ندارد.

2014
GIREESH CHAND

Variation of Alternaria brassicicola leaf spot of Broccoli (Brassica oleracea var. italica L.) was evaluated based on morphological, cultural and molecular parameters during Rabi season 2010 and 2011. Six isolates of Alternaria were cultured in vitro using different growth medium and the growth pattern of the fungi was studied. Maximum 86 leaf spots were recorded from Naini followed by BHU (74)...

Journal: :Studies in Mycology 2006
Pedro W. Crous Gerard J.M. Verkley Johannes Z. Groenewald

A study of microfungi associated with living Eucalyptus leaves and leaf litter revealed several novel and interesting taxa. Cladoriella eucalypti gen. et sp. nov. is described as a Cladosporium-like genus associated with litter collected in South Africa, while Fulvoflamma eucalypti gen. et. sp. nov. is newly described from leaf litter collected in Spain. Beta-conidia are newly reported for spec...

1998
Nobuo Iwata Takeshi Omura Hikaru Satoh

Nine of the physiological leaf spot mutants were described and investigated linkage relation with marker genes. All of them were governed by single recessive genes respectively and the causal genes were designated as a series of spl (spotted leaves) as spl,, spl,......sf&. With eight of them except for sPZ~, the linkage groups were determined as follows: sj+-a linkage group corresponding to A t...

2015
Laura Ceballos-Laita Elain Gutierrez-Carbonell Giuseppe Lattanzio Saul Vázquez Bruno Contreras-Moreira Anunciación Abadía Javier Abadía Ana-Flor López-Millán

The fluid collected by direct leaf centrifugation has been used to study the proteome of the sugar beet apoplastic fluid as well as the changes induced by Fe deficiency and Fe resupply to Fe-deficient plants in the protein profile. Plants were grown in Fe-sufficient and Fe-deficient conditions, and Fe resupply was carried out with 45 μM Fe(III)-EDTA for 24 h. Protein extracts of leaf apoplastic...

2012
P.W. Crous B.A. Summerell A.C. Alfenas J. Edwards I.G. Pascoe I.J. Porter J.Z. Groenewald

Four different genera of diaporthalean coelomycetous fungi associated with leaf spots of tree hosts are morphologically treated and phylogenetically compared based on the DNA sequence data of the large subunit nuclear ribosomal DNA gene (LSU) and the internal transcribed spacers and 5.8S rRNA gene of the nrDNA operon. These include two new Australian genera, namely Auratiopycnidiella, proposed ...

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