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	Provedor de dados Trop. Plant Pathol. (2) AGRIAMBI (1) Autor Bortoluzzi,Mateus P. (1) CRUSIUS,LUCIANO U. (1) Del Ponte,Emerson M. (1) FERNANDES,JOSÉ M.C. (1) FORCELINI,CARLOS A. (1) Fernandes,José Maurício C. (1) Heldwein,Arno B. (1) Loose,Luis H. (1) Lucas,Dionéia D. P. (1) Maldaner,Ivan C. (1) Pavan,Willingthon (1) SANHUEZA,ROSA M.V. (1) Silva,Jocélia R. da (1) Mais... Palavra-chave Disease forecast (3) Alternaria helianthi (1) Colletotrichum (1) Disease management (1) Fusarium graminearum (1) Helianthus annuus L. (1) Plant disease modeling (1) Septoria helianthi (1) Sowing date (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2015 (1) 2005 (1) 2002 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última A risk infection simulation model for fusarium head blight of wheat Trop. Plant Pathol. Del Ponte,Emerson M.; Fernandes,José Maurício C.; Pavan,Willingthon. Fusarium Head Blight (FHB) is a disease of great concern in wheat (Triticum aestivum). Due to its relatively narrow susceptible phase and environmental dependence, the pathosystem is suitable for modeling. In the present work, a mechanistic model for estimating an infection index of FHB was developed. The model is process-based driven by rates, rules and coefficients for estimating the dynamics of flowering, airborne inoculum density and infection frequency. The latter is a function of temperature during an infection event (IE), which is defined based on a combination of daily records of precipitation and mean relative humidity. The daily infection index is the product of the daily proportion of susceptible tissue available, infection frequency and spore... Tipo: Info:eu-repo/semantics/article Palavras-chave: Fusarium graminearum; Plant disease modeling; Disease forecast. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582005000600011 Epidemiology of apple leaf spot Trop. Plant Pathol. CRUSIUS,LUCIANO U.; FORCELINI,CARLOS A.; SANHUEZA,ROSA M.V.; FERNANDES,JOSÉ M.C.. Apple leaf spot (ALS) caused by Colletotrichum spp. is a major disease of apple (Malus domestica) in Southern Brazil. The epidemiology of this disease was studied in experiments carried out in the counties of Passo Fundo and Vacaria, State of Rio Grande do Sul, from February 1998 to October 2000. The disease was found in all the six apple orchards sampled in the growing seasons of 1997/98 and 1998/99. The fungus isolates associated with ALS fit the characteristics of C. gloeosporioides (75%), C. acutatum (8%), and Colletotrichum sp. (17%). The pathogen overwintered in dormant buds and twigs but not in dropped leaves or fruit mummies. Two sprays of copper oxychloride (at 0.3%) reduced the fungus initial inoculum by 65-84.6% in buds and 85.6-93.7% in twigs,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Colletotrichum; Disease forecast; Disease management. Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582002000100010 Irrigation and fungicide application on disease occurrence and yield of early and late sown sunflower AGRIAMBI Maldaner,Ivan C.; Heldwein,Arno B.; Bortoluzzi,Mateus P.; Loose,Luis H.; Lucas,Dionéia D. P.; Silva,Jocélia R. da. The objective of this study was to evaluate the effect of irrigation and fungicide application on the occurrence of diseases and cypsela yield of two genotypes of sunflower. The experiments were carried out in Santa Maria-RS, during the regular season in 2007 and the late season, in 2008. Plants were sown on 04/09/2007 and 21/01/2008, in a completely randomized design, with four replicates. A 2 x 6 factorial scheme was used, with the sunflower genotypes Aguará 03 and Hélio 358 and six fungicide application schemes, which were determined by the FAST forecasting system, as follows: FAST 16, FAST 22 and FAST 28, without irrigation, FAST 16 IRR under irrigated condition, in addition to irrigated control (CONTROL IRR) and control (CONTROL). Disease progress was... Tipo: Info:eu-repo/semantics/article Palavras-chave: Helianthus annuus L.; Alternaria helianthi; Septoria helianthi; Disease forecast; Sowing date. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662015000700630 Registros recuperados: 3 Primeira ... 1 ... Última

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