197 resultados para Broca gigante
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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The objective was to evaluate the oviposition preference and attractiveness of squash genotypes (Cucurbita spp.) to Bemisia tabaci biotype B. For bioassays, B. tabaci rearing biotype B was kept under greenhouse conditions. Twenty genotypes of Cucurbita spp. ('Alicia AF 9354', 'Aline AF 9353', 'Golden Delight', 'Nova Caravela', 'Menina Morena', 'Novita', 'AF-6741', 'Atlas', 'Barbara 305', 'Menina Brasileira', 'Caserta', 'Itapua 301', 'Tamara', 'Samira', 'Canhao Seca Gigante', 'Exposicao', 'Novita Plus', 'Daiane', 'Formosa', 'Sandy') were evaluated in trials (attractiveness and oviposition choice), under laboratory and greenhouse. The attractiveness (adults/cm(2)) was assessed et 12, 24, 48 and 72 hours after release. After 72 hours leaves were collected for counting the number of eggs (free choice). The area of the sheets were measured to obtain the number of eggs/cm(2) number of adults and / cm(2). The attractiveness index s (AI) and oviposition preference index (OPI) were calculated, and the genotype 'Novita' was adopted as the standard susceptible. The genotype 'Golden Delight' was the most attractive to adults of B. tabaci biotype B. 'Sandy' 'Daiane' and 'Formosa' showed low attractiveness and 'Golden Delight' was the most atractive to B. tabaci biotype B adults. 'Sandy', 'Exposicao', 'Daiane', 'Atlas', 'Tamara' and 'Formosa' expressed no preference for free choise assay. According to the attractiveness index (AI) the genotype 'Golden Delight' was the most attractive to adults of B. tabaci biotype B, and between repellents stood out 'Sandy', 'Daiane', 'Formosa', 'Novita Plus', 'Atlas', 'Barbara 305', 'Canhao Seca Gigante' and 'Menina Brasileira'. The genotypes 'Nova Caravela', 'Golden Delight', 'Aline AF 9353' and 'Samira' are considered by stimulating oviposition preference index (OPI), while the genotypes 'Sandy', 'Exposicao', 'Daiane', 'Atlas', 'Tamara', 'Formosa', 'Menina Morena' and 'Itapua 301' were considered deterrents.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Pós-graduação em Agronomia (Horticultura) - FCA
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Pós-graduação em Odontologia - FOAR
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Pós-graduação em Odontologia Restauradora - ICT
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Pós-graduação em Agronomia (Proteção de Plantas) - FCA
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Pós-graduação em Agronomia (Entomologia Agrícola) - FCAV
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Pós-graduação em Agronomia (Entomologia Agrícola) - FCAV
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Pós-graduação em Ciência e Tecnologia Animal - FEIS
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Microparticles with high protein content can be used as diets to mimic the proximate composition of Artemia nauplii. After production, the particles were characterized with respect to their proximate composition, mean size, morphology, and rehydration behavior after drying. The protein content, lipid content and the particle moisture were similar to Artemia nauplii, with mean values of 50, 23, and 85%, respectively. Additionally, the particles were used in a pacu (Piaractus mesopotamicus) larval growth experiment. Also, the probiotic Lactobacillus acidophilus was added to one of the diets, and the effects of the diets were evaluated on larvae growth and stress resistance. Larvae fed the experimental diets had lower growth than larvae fed with Artemia nauplii or a commercial diet. All of the evaluated diets, including the experimental ones, showed high ingestion rates (>90%). In the stress test by air exposure, larvae fed with the microparticle without probiotic exhibited a significantly higher mortality than those fed the commercial diet or those fed with Artemia nauplii. The low growth rates may have been due to a potential nutritional inadequacy with respect to the low mineral/vitamin content of the experimental diets. (C) 2014 Elsevier Ltd. All rights reserved.