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Development, survival and reproduction of Spodoptera frugiperda (Lepidoptera: Noctuidae) fed an artificial diet or on cotton, castor bean and corn leaves. Author(s): RAMOS, R. da S.; SILVA, C. A. D. da; LIMA, T. de A.; ALBUQUERQUE JÚNIOR, P. de S.; CASTELLANI, M. A.; SERRÃO, J. E.; ZANUNCIO, J. C. The polyphagy of Spodoptera frugiperda (Lepidoptera: Noctuidae) renders its control difficult because variations in the phenology of host plants grown in different seasons of the year and near each ot... ... Repository: BDPA Publication year: 2022
Estimation of nitrogen and phosphorus content in cotton leaves from medium-resolution satellite images. Author(s): BRANDÃO, Z. N.; GREGO, C. R.; GONDIM, T. M. de S.; RODRIGUES, H. M. Satellite images are valuable tools to assess the nutritional status of plants and, thus, understand the variability of cotton yield in farmers' fields. By identifying soil variability and nutritional... ... Repository: BDPA Publication year: 2024
Soluble sugars and starch accumulation on cotton plant leaves affected by cotton leafroll dwarf virus. Author(s): HOFFMAN, L. V.; BATISTA, C. E. de A.; ALMEIDA, V. C. de; BARROSO, P. A. V. The cotton blue disease, a main cotton pest in Brazil, is caused by a luteovirus, named Cotton leafroll dwarf virus (CLRDV) or Cotton vein mosaic virus (CVMV). Symptoms include shortening of internode... ... Repository: BDPA Publication year: 2007
Identificação de elementos específicos das folhas do algodoeiro em imagens com fundos complexos. Author(s): BARBEDO, J. G. A. Resumo: O uso de técnicas de processamento digital de imagens e visão computacional na análise foliar frequentemente depende de uma separação prévia das folhas das plantas do restante da cena. Essa se... ... Repository: BDPA Publication year: 2014
Bt cotton and the predator Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) in the management of Spodoptera frugiperda ( J.E. Smith) (Lepidoptera: Noctuidae) resistance to lambda-cyhalothrin. Author(s): MALAQUIAS, J. B.; OMOTO, C.; RAMALHO, F. de S.; GODOY, W. A. C.; SILVEIRA, R. F. This study sought to provide relevant information for developing effective programs to manage Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) resistance to insecticides by quantifying and... ... Repository: BDPA Publication year: 2015
Spatial and temporal distribution of cotton squares and small cotton bolls fallen on ground after damage by boll weevil and the effciency of the equipment used to collect them. Author(s): SILVA, C. A. D. da; DUARTE, M. de M. F.; GONÇALVES, S. G.; VASCONCELOS, E. D. In this study, we determined the spatial and temporal distribution of fallen cotton squares and small cotton bolls fallen damaged by boll weevil and the efficiency and time interval of the equipment u... ... Repository: BDPA Publication year: 2017
Prevalence of race 18 of Xanthomonas citri subsp. malvacearum on cotton in Brazil. Author(s): BRAGA, W. de S.; CUNHA, R. W. S. da; SUASSUNA, N. D.; COUTINHO, W. M. Cotton bacterial blight caused by Xanthomonas citri subsp. malvacearum (Xcm) is one of the most widely distributed and devastating diseases of cotton (Gossypium spp.) worldwide. Twelve Xcm races have... ... Repository: BDPA Publication year: 2016
Hemispherical photography to estimate biophysical variables of cotton. Author(s): BRANDAO, Z. N.; ZONTA, J. H. The Leaf Area Index (LAI) is a key parameter to evaluate the vegetation spectral response, estimating plant nutrition and water requirements. However, in large fields is difficult to obtain accurate d... ... Repository: BDPA Publication year: 2016
Expression of NCED gene in colored cotton genotypes subjected to water stress. Author(s): SOUZA, A. M. S. de; BATISTA, V. G. L.; PINHEIRO, M. P. N.; SUASSUNA, J. F.; LIMA, L. M. de; FERNANDES, P. D. Considering that the NCED gene acts on the biosynthetic cascade of ABA, a hormone involved in the functioning of stomata and consequently in the regulation of transpiration, the aim of this research w... ... Repository: BDPA Publication year: 2016
Physiological aspects in cotton cultivars in response to application leaf gibberellic acid. Author(s): COSTA, J. C. F. da; SILVA, D. J. da; SOUTO, A. G. de L.; SOFIATTI, V.; ROSADO, L. D. S.; LIMA NETO, A. J. de; SANTOS, C. E. M. dos The cotton plant is a species of the Malvaceae family and is relevant to the Brazilian and world economy, mainly because of the textile fiber. However, there was an increase in cotton production becau... ... Repository: BDPA Publication year: 2017

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