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	Provedor de dados Bragantia (1) Ciência e Agrotecnologia (1) Ciência Rural (1) Autor Pimentel,Guilherme Vieira (3) Barbosa,Márcio Henrique Pereira (2) Peternelli,Luiz Alexandre (2) Tomaz,Adriano Cirino (2) Brasileiro,Bruno Portela (1) Fernandes,Felipe Augusto (1) Fernandes,Tales Jesus (1) Jane,Sérgio Alberto (1) Muniz,Joel Augusto (1) Silva,Edilson Marcelino (1) Soares,Bruno Oliveira (1) Valverde,Alejandro Hipólito Pabón (1) Mais... Palavra-chave Diatraea saccharalis (1) Gompertz model (1) Growth rates (1) Host-plant resistance. (1) Logistic model (1) Nymph damage (1) Plant-insect interaction (1) Saccharum sp (1) Saccharum spp. (1) Spittlebug (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2020 (1) 2018 (1) 2017 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última A new methodology for large-scale screening sugarcane resistance to Mahanarva Fimbriolata (Hemiptera: Cercopidae) Bragantia Valverde,Alejandro Hipólito Pabón; Soares,Bruno Oliveira; Tomaz,Adriano Cirino; Pimentel,Guilherme Vieira; Peternelli,Luiz Alexandre; Barbosa,Márcio Henrique Pereira. ABSTRACT The sugarcane spittlebug, Mahanarva fimbriolata (Walker) (Hemiptera: Cercopidae) is an economically important pest of sugarcane in Brazil. The purpose of this study was to develop and validate a greenhouse methodology to screen large sugarcane populations for resistance to spittlebug Mahanarva fimbriolata. A resistant and a susceptible genotype (H. Kawandang and SP81-3250) were first used to determine adequate days after infestation and levels of infestation (number of nymphs per plant) for comparing the resistance of genotypes. Then, 74 sugarcane genotypes including three susceptible and three resistant controls were screened for resistance. The screening method consists in infesting single-tiller plants supported in a small plant growth unit and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Saccharum sp; Spittlebug; Plant-insect interaction; Nymph damage. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000400599 Adjusting the growth curve of sugarcane varieties using nonlinear models Ciência Rural Jane,Sérgio Alberto; Fernandes,Felipe Augusto; Silva,Edilson Marcelino; Muniz,Joel Augusto; Fernandes,Tales Jesus; Pimentel,Guilherme Vieira. ABSTRACT: Assessing sugarcane (Saccharum spp.) stalk growth helps to adequately manage the phenological stages of the crop. The aim of this study was to describe the height-growth curve of four sugarcane varieties (RB92579, RB93509, RB931530 and SP79-1011), in irrigated plant-cane and ratoon cane plantations, using the Logistic and Gompertz nonlinear models, while considering all deviations from assumptions. The model parameters were estimated based on the least squares method using the Gauss-Newton algorithm. To select the most suitable model, nonlinear measures, adjusted coefficient of determination (R2 adj), residual standard deviation (RSD), and corrected Akaike information criterion (AICc) were used. Based on the best models, stalk height growth rates... Tipo: Info:eu-repo/semantics/article Palavras-chave: Logistic model; Gompertz model; Growth rates. Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000300204 Oviposition preference and larval performance of sugarcane borer in eight sugarcane genotypes Ciência e Agrotecnologia Pimentel,Guilherme Vieira; Tomaz,Adriano Cirino; Brasileiro,Bruno Portela; Peternelli,Luiz Alexandre; Barbosa,Márcio Henrique Pereira. ABSTRACT The sugarcane borer Diatraea saccharalis Fabr. (Lepidoptera: Crambidae) is one of the most important pests of sugarcane in the Americas. The purpose of this study was to assess multiple resistance traits in eight sugarcane genotypes against D. saccharalis, including five commercial cultivars and three exotic germplasm with potential to serve as resistance sources against this pest. The oviposition preference was assessed by using both free-choice and non-choice tests. The performance of both early stage larvae feeding on the leaves and late stages larvae feeding within the stalks were also assessed. There were differences among genotypes for number of both eggs and egg cluster in the free-choice test while no differences in non-choice test were... Tipo: Info:eu-repo/semantics/article Palavras-chave: Saccharum spp.; Diatraea saccharalis; Host-plant resistance.. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000400439 Registros recuperados: 3 Primeira ... 1 ... Última

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