Blight Plant Disease
Mostrando 1-12 de 30 artigos, teses e dissertações.
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1. Heritability of resistance to potato late blight in an F1 population of elite potato cultivars
ABSTRACT Phytophthora infestans is the most important disease in potato crops. Its control is based on the use of chemical products that have developed pathogen resistance and high economic and environmental impacts. To reduce these effects, the use of plant varieties or cultivars resistant to this pathogen has been proposed. The aim of this study was to eva
Revista Ceres. Publicado em: 2022
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2. Incorporação de biomassa de fabáceas ao substrato de plantio para controle da podridão-de-escleródio (Sclerotium rolfsii) em cubiu (Solanum sessiliflorum)
RESUMO O cultivo do cubiu (Solanum sessiliflorum Dunal), no Amazonas, é limitado pela alta incidência da doença podridão-de-escleródio (Sclerotium rolfsii Sacc.) e a incorporação de material vegetal ao substrato de cultivo altera a microflora presente. O trabalho objetivou avaliar o potencial de controle da podridão-de-escleródio em cubiu por meio d
Summa phytopathol.. Publicado em: 17/01/2020
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3. Green propolis ethanolic extract in bean plant protection against bacterial diseases
RESUMO: Este trabalho teve como objetivo avaliar o extrato etanólico de própolis verde (EEP) na proteção de plantas de feijoeiro contra as duas principais bacterioses da cultura, crestamento bacteriano (Xanthomonas axonopodis pv. phaseoli) e fogo selvagem (Pseudomonas syringae pv. tabaci). Foram realizados experimentos sobre atividade antimicrobiana ind
Cienc. Rural. Publicado em: 16/05/2019
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4. Management of blight of bell pepper (Capsicum annuum var. grossum) caused by Drechslera bicolor
Abstract Sweet or bell pepper is a member of the Solanaceae family and is regarded as one of the most popular and nutritious vegetable. Blight, in the form of leaf and fruit blight, has been observed to infect bell pepper crops cultivated at the horticulture farm in Rajasthan College of Agriculture, Udaipur, India. Based on disease severity, we attempted to
Braz. J. Microbiol.. Publicado em: 2016-12
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5. Virulence and molecular characterization of Costa Rican isolates of Rhizoctonia solani from common bean
Web blight is one of the main diseases that affects bean (Phaseolus vulgaris) cultivation. It infects diverse organs at any growth stage of the plant and can be present at different altitudes in a humid tropical climate. The causal agent of this disease is Thanatephorus cucumeris in its sexual stage and Rhizoctonia solani in the anamorph. The objective of th
Trop. plant pathol.. Publicado em: 2013-12
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6. Activity of extracellular compounds of Pseudomonas sp. against Xanthomonas axonopodis in vitro and bacterial leaf blight in eucalyptus
Bacterial leaf blight caused by Xanthomonas axonopodis is a major problem in the production of eucalyptus seedlings. The pathogen causes leaf lesions that reduce the photosynthetic area and limit plant growth. The objective of this study was to evaluate the antibiotic activity of secondary metabolic compounds of a Pseudomonas sp. against X. axonopodis, follo
Tropical Plant Pathology. Publicado em: 2012-08
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7. Evidence that the Ceratobasidium-like white-thread blight and black rot fungal pathogens from persimmon and tea crops in the Brazilian Atlantic Forest agroecosystem are two distinct phylospecies
The white-thread blight and black rot (WTBR) caused by basidiomycetous fungi of the genus Ceratobasidium is emerging as an important plant disease in Brazil, particularly for crop species in the Ericales such as persimmon (Diospyros kaki) and tea (Camellia sinensis). However, the species identity of the fungal pathogen associated with either of these hosts i
Genetics and Molecular Biology. Publicado em: 17/05/2012
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8. Podridão floral dos citros: dinâmicas temporal e espacial, sensibilidade de Colletotrichum acutatum a fungicidas e controle da doença / Postbloom fruit drop: temporal and spatial dynamics, sensitivity of Colletotrichum acutatum to fungicide and disease control
A Podridão Floral dos Citros (PFC), causada por Colletotrichum acutatum, foi observada em 1956/57 em Belize e relatada posteriormente em 1979. Neste mesmo ano a PFC também foi relatada no Brasil e, desde então, tem causado prejuízos todas às vezes nas quais o período de florescimento coincide com a ocorrência de chuvas. O controle da PFC é realizado
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/08/2011
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9. Field and greenhouse inoculation methods for assessment of sheath blight resistance in rice.
Field and greenhouse inoculation methods were compared to determine the genetic variation for resistance to Rhizoctonia solani in 38 somaclones of rice cultivar Metica-1. Rice plants in pots were inoculated with isolate 4F1 at the age of sixty four days, with 2.0 g of the fungal culture, multiplied on rice grain and hull medium and placed on the soil surface
Crop Breeding and Applied Biotechnology. Publicado em: 2011
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10. Indução de resistência em feijoeiro (Phaseolus vulgaris) por acibenzolar-S-metil contra Xanthomonas axonopodis pv. phaseoli: parâmetros bioquímicos e da produção / Induced resistance in bean plants (Phaseolus vulgaris) by acibenzolar-S-methyl against Xanthomonas axonopodis pv. phaseoli: biochemical and production parameters
The common bacterial blight disease of bean caused by the bacterium Xanthomonnas axonopodis pv. phaseoli, occurs mainly in hot and humid regions of the globe. The induced resistance consists in the increase of the plant resistance by the use of external agents, without any change in its genome. The objectives of this study were: (i) to verify the induction o
Publicado em: 2010
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11. Conidia aerobiology and cercosporiosis management of soybean (Glycine max) / Aerobiologia de conídios e manejo das cercosporioses da soja (Glycine max)
The cercospora leaf blight and the frogeye leaf spot are two important diseases of soybean culture. Due to the high variability of both pathogens, the search for new sources of resistance and for efficient control methods is necessary. Therefore, this work, divided into five chapters, had as general objectives: (a) the evaluation of soybean genotypes reactio
Publicado em: 2009
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12. Produção de hidrolases pelo fungo Dicyma pulvinata, caracterização bioquímica de uma proteinase e purificação parcial desta enzima
The fungus Dicyma pulvinata (Deuteromycotina: Hyphomycete) shows strong biocontrol potential for plant diseases, and has been found in lesions caused in plants by Microcyclus ulei (Ascomycete), the agent of the South American Leaf Blight (SALB). This disease of the rubber tree (Hevea spp.), is a limiting factor for latex production and for expansion culture
Publicado em: 2007