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English: tar spot; tar spot of maize; Spanish: mancha de asfalto; mancha negra; mancha negra del maiz; French: tache noire du mais. El “complejo mancha de asfalto” del maíz, su distribución geográfica, requisitos Etiología y manejo de la mancha de asfalto (Phyllachora maydis Maubl.). mancha de asfalto del maiz []. Malaguti, G. Subero, L.J.. Access the full text: NOT AVAILABLE. Lookup the document at: google-logo. mancha de asfalto del.

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Tar spot lesions containing C. The accuracy of each evaluator was determined through the T test applied to the intercept of the linear regression b 0to verify the H 0: Control Cultural Control and Sanitary Measures Measures to reduce asfaltk initial inoculum for a new crop would depend on the source of that inoculum and cultivation practices.

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Control of tar spot of maize and its effect on yield. Development and validation of diagrammatic key for Cercospora asfaalto spot of sweet pepper. The distribution in this summary table is based on all the information available. Especes nouvelles de champignons inferieurs. The authors express their appreciation to all evaluators of the Colegio de Postgraduados that participated in the validation stages of the logarithmic scale.

The International Seed-Testing Association. Datasheet Phyllachora maydis black spot of maize.

Lista de Hongos Fitopatogenos de Cuba [English title not available]. The value of the b 0 intercept was positive in almost all cases, which indicates that there is a tendency to overestimate the severity of the disease; this tendency was greater for the evaluators without experience.

Tests of standard diagrams for field use in assessing the tarspot disease complex of maize Zea mays. One or more of the features that are needed to show you the maps functionality are not available in the web browser that you are using. Requisitos ambientales para el desarrollo del “complejo mancha de asfalto” que ataca al mais en Mexico.


Aefalto Maps Top of page You can pan and zoom the map. The source of initial inoculum for both fungi is not determined. Tropical and subtropical maize cropping patterns may allow the pathogen to persist and multiply. Subsequently, a necrotic diameter is formed around each one of the lesions of P.

Additions and corrections to part V. More information about modern web browsers can be found at http: According to the only monograph of the genus Parbery, ;the morphologically similar species of Phyllachora cause tar spot on BoutetouaCynodonand Chloris. Title Symptoms Caption Blight developing between ‘fisheye’ spots on Zea mays.

Arrasa la “Mancha de Asfalto” con siembra de maíz | El Veraz

For additional descriptions see DalbyOrtonParberyand Liu Despite the increasing importance of TSC in maize and the resulting need to carry out epidemiological or control studies, there is no standardized quantification method of the disease that provides easily reproducible results among investigators or institutions; therefore, the objective of this investigation was to design and validate a diagrammatic logarithmic severity scale for the maize – Phyllachora maydis and Monographella maydis – pathosystem that allows the evaluation of the damage caused by the disease in fields, analyzing the accuracy, precision and asfaalto values generated with its use.

Sequential development of pathogens in the maize tarspot disease complex. Design of the diagrammatic logarithmic scale. Parbery a mai rain splash as a dispersing agent for Phyllachora on grasses in Australia. Invasion of the host and development of the fungus. Not known to be seedborne or to infect other species, P. Summa Phytopathologica 32 3: Foliar fungal diseases http: Ascospores uniseriate in ascus, hyaline, aseptate, broadly ellipsoid, 5.


Editorial Cientifico-Tecnica, pp. Organizations Top of page Mexico: Plants located up to feet away from a source of inoculum were infected in Puerto Rico Liu, The higher optimum for the second pathogen may be a factor in its later appearance, following P.

The values of the b 0 intercept were closer to zero for the first group.

Further details may be available for individual references in mamcha Distribution Table Details section which can be selected by going to Generate Report. Description Top of page Clypeus amphigenous, developing in epidermis, generally circular, 0. Australian Journal of Botany, 2 2: Cryptogamic Botany, 2 Journal macha Agriculture of the University of Puerto Rico, 42 3: Validation of the diagrammatic scale. Symptoms Top of page Initial symptoms are small, yellow-brown spots on either side of the leaf.

The means of persistence and sources of initial inoculum other than maize [ Zea mays ] need to be determined. The accuracy and precision of each evaluator was determined through a simple analysis of linear regression as described by Nutter et al.

The precision values observed in the evaluators without experience are acceptable; prior training could have a positive influence on the quality of the evaluations. Title Asci Caption Asci of Phyllachora maydis. Development and validation of diagrammatic key for Cercospora leaf spot of sweet pepper Summa Phytopathologica,