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	Provedor de dados 75 (2) Autor Erlacher,Wellington A (2) Oliveira,Fábio L (2) Silva,Diego MN (2) Carvalho,Arnaldo HO (1) Dalvi,Leandro P (1) Fialho,Gustavo S (1) Pratissoli,Dirceu (1) Quaresma,Mateus AL (1) Mais... Palavra-chave Smallanthus sonchifolius (2) Damage (1) Leaf size (1) Mathematical modeling. (1) Pest management (1) Tipo do documento Info:eu-repo/semantics/article (2) Ano 2016 (1) 2015 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Models for estimating yacon leaf area 75 Erlacher,Wellington A; Oliveira,Fábio L; Fialho,Gustavo S; Silva,Diego MN; Carvalho,Arnaldo HO. ABSTRACT The recent exploration of yacon demands scientific information for improving the crop production technology. This study aimed to set a leaf area estimate model for yacon plants, using non-destructive measurements of leaf length (L) and/or width (W). Sixty-four representative yacon plants were randomly selected in an experimental field during the full vegetative growth. One thousand leaves of various sizes were taken from those plants for setting and validating a model. The logarithmic model best fitted this purpose, the result of multiplying length by width being used as independent variable. Yacon leaf area can be determined with high precision and accuracy by LALW = (-27.7418 + (3.9812LW / ln LW ) , disregarding the leaf size. Tipo: Info:eu-repo/semantics/article Palavras-chave: Smallanthus sonchifolius; Leaf size; Mathematical modeling.. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362016000300422 Occurrence of insects causing injuries to the yacon crop 75 Silva,Diego MN; Oliveira,Fábio L; Dalvi,Leandro P; Pratissoli,Dirceu; Erlacher,Wellington A; Quaresma,Mateus AL. This research aimed to catalog insects that cause injury to the yacon (Smallanthus sonchifolius, família Asteraceae) crop, in order to identify those who may cause damage. The study was carried out in Alegre, Espírito Santo State, Brazil. Cultivation began in May 2013 and the harvest was done 180 days later. Three species from the Coleoptera order: Lagria villosa (Coleoptera: Lagriidae); Cerotoma arcuata and Diabrotica speciosa (Coleoptera: Chrysomelidae) and two species from the Lepidoptera order: Spodoptera eridania (Lepidoptera: Noctuidae) and Chlosyne lacinia saundersii (Lepidoptera: Nymphalidae) were observed causing damage to the yacon crop. The caterpillar C. lacinia saundersii, known as sunflower caterpillar, was the most important species, being... Tipo: Info:eu-repo/semantics/article Palavras-chave: Smallanthus sonchifolius; Damage; Pest management. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362015000300394 Registros recuperados: 2 Primeira ... 1 ... Última

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