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Biblioteca(s):  Embrapa Café.
Data corrente:  10/01/2023
Data da última atualização:  10/01/2023
Tipo da produção científica:  Artigo em Periódico Indexado
Autoria:  BARTH, E.; RESENDE, J. T. V. de; MARIGUELE, K. H.; RESENDE, M. D. V. de; SILVA, A. L. B. R. da; RU, S.
Afiliação:  ENEIDE BARTH, EMPRESA DE PESQUISA AGROPECUÁRIA E EXTENSÃO RURAL DE SANTA CATARINA; JULIANO TADEU VILELA DE RESENDE, UNIVERSIDADE ESTADUAL DE LONDRINA; KENY HENRIQUE MARIGUELE, EMPRESA DE PESQUISA AGROPECUÁRIA E EXTENSÃO RURAL DE SANTA CATARINA; MARCOS DEON VILELA DE RESENDE, CNPCa; ANDRÉ LUIZ BISCAIA RIBEIRO DA SILVA, AUBURN UNIVERSITY; SUSHAN RU, AUBURN UNIVERSITY.
Título:  Multivariate analysis methods improve the selection of strawberry genotypes with low cold requirement.
Ano de publicação:  2022
Fonte/Imprenta:  Scientific Reports, v. 12, 11458, 2022.
Páginas:  12 p.
DOI:  https://doi.org/10.1038/s41598-022-15688-4
Idioma:  Inglês
Conteúdo:  Methods of multivariate analysis is a powerful approach to assist the initial stages of crops genetic improvement, particularly, because it allows many traits to be evaluated simultaneously. In this study, heat-tolerant genotypes have been selected by analyzing phenotypic diversity, direct and indirect relationships among traits were identified, and four selection indices compared. Diversity was estimated using K-means clustering with the number of clusters determined by the Elbow method, and the relationship among traits was quantified by path analysis. Parametric and non-parametric indices were applied to selected genotypes using the magnitude of genotypic variance, heritability, genotypic coefficient of variance, and assigned economic weight as selection criteria. The variability among materials led to the formation of two non-overlapping clusters containing 40 and 154 genotypes. Strong to moderate correlations were found between traits with direct effect of the number of commercial fruit on the mass of commercial fruit. The Smith and Hazel index showed the greatest total gains for all criteria; however, concerning the biochemical traits, the Mulamba and Mock index showed the highest magnitudes of predicted gains. Overall, the K-means clustering, correlation analysis, and path analysis complement the use of selection indices, allowing for selection of genotypes with better balance among the assessed traits.
Thesaurus Nal:  Genotype; Multivariate analysis; Plant selection guides; Strawberries.
Categoria do assunto:  --
URL:  https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1150840/1/Multivariate-analysis-methods.pdf
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Café (CNPCa)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status URL
CNPCa - SAPC1669 - 1UPCAP - DD
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Biblioteca(s):  Embrapa Semiárido.
Data corrente:  28/01/2022
Data da última atualização:  28/01/2022
Tipo da produção científica:  Artigo em Periódico Indexado
Circulação/Nível:  B - 1
Autoria:  LEAO, P. C. de S.; CUNHA, M. A. C. da; SOUZA, E. R. de.
Afiliação:  PATRICIA COELHO DE SOUZA LEAO, CPATSA; MARCOS ANDREI CUSTÓDIO DA CUNHA; EDIMARA RIBEIRO DE SOUZA.
Título:  Agronomic performance of rootstocks on the juice grape BRS Magna grown in a Brazilian semi-arid region.
Ano de publicação:  2022
Fonte/Imprenta:  Revista Brasileira de Fruticultura, v. 44, n. 1, e-832, 2022.
DOI:  http://dx.doi.org /10.1590/0100-29452022832
Idioma:  Inglês
Conteúdo:  Rootstocks are widely used in viticulture worldwide and can affect the yield components and quality of grapes and their juices and wines. The aim of the present study was to determine the effect of the rootstock on the yield performance and physical and physical-chemical traits of ?BRS Magna? juice grapes grown in the Submédio do Vale do São Francisco. The study was performed over six production cycles in the period from 2015 to 2019 in the Bebedouro experimental field of Embrapa Semiárido in Petrolina, PE, Brazil. The treatments consisted of seven grapevine rootstocks: IAC 572, IAC 766, IAC 313, Paulsen 1103, SO4, Harmony, and Freedom. The following variables were evaluated: estimated yield, number of grape bunches per plant, branch and leaf fresh matter, bunch weight, bunch length and width, berry weight, total soluble solids content (SS), titratable acidity (TA), and SS to TA ratio (SS:TA). Significant effects of the rootstock were observed in all the variables except for SS. The rootstock ?IAC 572? led to increases of up to 61% in the yield of ?BRS Magna? grapevines, or 32.78 ton.ha-1, with significant responses in the other yield components. Results of the scatterplot in relation to the first three principal components allowed separation of the rootstocks in accordance with production cycles. The mean values for SS and TA characterize this cultivar in the Vale do Submédio São Francisco, with high soluble solids content and low acidity resulting in high SS:TA, as having ... Mostrar Tudo
Palavras-Chave:  BRS Magna; Enxertia; Videira; Viticultura tropical.
Thesagro:  Porta Enxerto; Uva.
Thesaurus NAL:  Grafting (plants); Grapes; Rootstocks; Scions; Vines.
Categoria do assunto:  A Sistemas de Cultivo
URL:  https://ainfo.cnptia.embrapa.br/digital/bitstream/item/230692/1/Agronomic-performance-of-rootstocks-on-the-juice-grape-2022.pdf
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Semiárido (CPATSA)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status
CPATSA59754 - 1UPCAP - DD
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