Association among stability measurements in rubber tree traits

Autor: Paulo de Souza Gonçalves, Lígia Regina Lima Gouvêa, Rogério Soares de Freitas, Mario Luis Teixeira de Moraes, Erivaldo José Scaloppi-Junior, Guilherme Augusto Peres Silva
Přispěvatelé: Inst Agron Estado Sao Paulo, Universidade Estadual Paulista (Unesp), Inst Agron IAC
Rok vydání: 2016
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Zdroj: Web of Science
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
ISSN: 0926-6690
Popis: Made available in DSpace on 2018-11-26T15:28:42Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-03-01 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) The simultaneous use of different methods of stability analysis is becoming more widely used in the selection of genotypes in breeding programs. Knowing how these different methods are associated can contribute to a more efficient selection. The objective of the present study was to assess association among different methods of stability analysis in the rubber tree [Hevea brasiliensis (Willd. ex Adr. de Juss.) Muell.-Arg.], using different traits and different groups of genotypes for the same trait. Two open pollinated progeny populations (POP1 and POP2) and a group of clones (Group 1) were analyzed. POP1 contained 22 progeny, assessed in the municipalities of Pindorama, Votuporanga and jab, Sao Paulo state, Brazil. POP2 included 30 progeny assessed in Selviria, Mato Grosso do Sul state, Votuporanga and Colina, Sao Paulo state, Brazil. Group 1 consisted of 25 clones assessed in Votuporanga. The following traits were assessed in POP1: girth, rubber yield, bark thickness and number of latex vessel rings. Rubber yield was assessed in POP2 and Group 1 clones. The following methods of stability analysis were used: Wricke; Eberhart and Russell; Lin and Binns; AMMI (Principal Additive Effect and Multiplicative Interaction) and HMRPGV (Harmonic Mean of the Relative Performance of the Genetic Values) predicted by Blup (Best Linear Unbiased Prediction). The Spearman correlation was used to verify the association between the stability parameters. Three scenarios were observed; in the first, some parameters did not show significant association in any of the analyses: Eberhart and Russell with Lin and Binns; Eberhart and Russell with HMRPGV; Wricke with HMRPGV; AMMI with Lin and Binns and AMMI with HMRPGV. In the second, some parameters showed significant associations in all the analyses such as: Wricke with AMMI, Lin and Binns with HMRPGV. Finally, in the third, the significance of association varied according to the analysis: Eberhart and Russell with Wricke, Eberhart and Russell with AMMI and Wricke with Lin and Binns. Therefore, the association among some stability parameters varies according to the trait and/or the group of genotypes analyzed. The association observed in one analysis cannot be applied to another analysis. In this data analysis is possible to observe that the AMMI method can be used with HMRPGV or Lin and Binns. In addition, Eberhart and Russell can be used with HMRPGV or Lin and Binns, since they offer differentiation and provide additional approaches to the study of stability. (C) 2015 Elsevier B.V. All rights reserved. Inst Agron Estado Sao Paulo, Programa Seringueira, Caixa Postal 28, BR-13012970 Campinas, SP, Brazil Univ Estadual Paulista, Ilha Solteira, SP, Brazil Inst Agron IAC, Ctr Seringueira & Sistemas Agroflorestais, BR-15500970 Em Votuporanga, SP, Brazil Univ Estadual Paulista, Ilha Solteira, SP, Brazil FAPESP: 2012/15530-2 FAPESP: 2010/50049-8 FAPESP: 2010/09097-9 CNPq: 562,979/2010-7 CNPq: 473,256/2012-6
Databáze: OpenAIRE
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