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Author(s): MARCELINO, A. D. A. de L.; FERNANDES, P. D.; RAMOS, J. P. C.; DUTRA, W. F.; CAVALCANTI, J. J. V.; SANTOS, R. C. dos

ABSTRACT: Two multivariate methods were adopted to classify salt-tolerant cotton genotypes based on their growth and physiological traits. The genotypes were cultivated in a greenhouse and subjected t... ...

Repository: BDPA     Publication year: 2022

Author(s): NOVOTNY, E. H.; GARCIA, R. H. S.; AZEVEDO, E. R. de

Multivariate Curve Resolution (MCR) is a multivariate analysis procedure commonly used to analyze spectroscopic data providing the number of components coexisting in a chemical system, the pure spectr... ...

Repository: BDPA     Publication year: 2023

Author(s): VASQUES, G. de M.; DEMATTE, J. A. M.; LOPEZ, L. R.; TERRA, F. da S.

Abstract : Visible/near-infrared diffuse reflectance spectroscopy (VNIRS) offers an alternative to conventional analytical methods to estimate various soil attributes. However, the use of VNIRS in soi... ...

Repository: BDPA     Publication year: 2011

Author(s): FASIABEN, M. do C. R.; OLIVEIRA, A. de; MARIM, F.; MAIA, A.; ALMEIDA, M.; OLIVEIRA, O. de

This paper addresses the classification and characterization of the sugarcane producing municipalities in Brazil, using techniques of multivariate statistical analysis (factor and cluster analysis).

Repository: BDPA     Publication year: 2015

Author(s): HIDALGO CHÁVEZ, D. W.; SILVA, F. L. C. DA; PINTO, R. V.; CARVALHO, C. W. P. de; FREITAS-SILVA, O.

This article describes simple methods to group images including principal component analysis (PCA) and hierarchical clustering of principal components (HCPC). Images of expanded and low expanded extru... ...

Repository: BDPA     Publication year: 2023

Author(s): BAQUETA, M. R.; ALVES, E. A.; VALDERRAMA, P.; PALLONE, J. A. L.

High-quality Brazilian Canephora coffees are rising to the level of specialty coffees in the face of a new industry perception. In this framework, spectra from 527 coffees were analyzed in the near-in... ...

Repository: BDPA     Publication year: 2023

Author(s): SALVIANO, A. M.; OLSZEVSKI, N.; ARCOVERDE, S. N. S.; MELO, S. B. de; GIONGO, V.; CUNHA, T. J. F.; PEREIRA, J. S.

stract: The aim of this work is to define indices of soil chemical quality in intense agricultural activity area surrounding Sobradinho Lake, State of Bahia, Brazil, by means of multivariate statistic... ...

Repository: BDPA     Publication year: 2018

Author(s): ARANDAS, J. K. G.; ALVES, A. G. C.; FACO, O.; BELCHIOR, E. B.; SHIOTSUKI, L.; RIBEIRO, M. N.

Abstract: This study aimed to characterize the purebred Morada Nova sheep and crossbred farming systems in Ceará State, Brazil, through multivariate analysis. The study was carried out in the Morada N... ...

Repository: BDPA     Publication year: 2020

Author(s): PEREIRA, M. G.; VALLADARES, G. S.; ANJOS, L. H. C.; EBELING, A. G.; BENITES, V. de M.

Repository: BDPA     Publication year: 2006

Author(s): CASSARO, R.; FERREIRA, R. R. M.; FERREIRA, V. R. M.; RODRIGUES, V. G. S.

Abstract: When analyzing a database, summarize collected information is the analyst main challenge. In many cases, when you have a large number of data, it may be of interest to create groups. A clust... ...

Repository: BDPA     Publication year: 2021

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