Data/hora: 01/06/2024 18:14:48

Biblioteca(s): | Embrapa Unidades Centrais.
Data corrente: | 19/10/1998
Data da última atualização: | 30/07/2019
Autoria: | GONCALVES, P. de S.; GALLO, P. B.; SEGNINI JUNIOR, I.; ORTOLANI, A. A.; BRIOSCHI, A. P.; LANDELL, M. G.; SOUZA, S. R. de.
Afiliação: | PAULO DE SOUZA GONCALVES, PI-SP; PAULO BOLLER GALLO, E.E. de Mococa; IVO SEGNINI JUNIOR, Cambuhy Empreendimentos Agropecuários Ltda.; ALTINO ALDO ORTOLANI, Instituto Agronômico de Campinas - UNICAMP/Centro de Solos e Recursos Ambientais. Bolsista do CNPq; AFONSO PEDRO BRIOSCHI, Coordenadoria de Assitência Técnica Integral - CATI/Escritório de Desenvolvimento Rural; MARCOS GUIMARÃES LANDELL, Núcleo Regional de Alta Mogiana; SÉRGIO RICARDO DE SOUZA, Instituto Agronômico de Campinas - IAC/Centro Café e Plantas Tropicais.
Título: | Components of variance and interaction between genotype and environment for annual girth increment in rubber tree.
Ano de publicação: | 1998
Fonte/Imprenta: | Pesquisa Agropecuária Brasileira, Brasília, DF, v. 33, n. 8, p. 1329-37, ago. 1998
Idioma: | Inglês
Notas: | Título em português: Componentes de variância e interação entre genótipo e ambiente no incremento anual do caule em seringueira.
Conteúdo: | To determine the nature and extent of genetical and environmental control of vigour through annual girth increment in rubber trees [Hevea brasiliensis (Willd.ex Adr. de Juss.) Muell.Arg.], seven clones were studied in a replicated trial in Sao Paulo State at four different locations. The clones represented a range of imported germplasm while the locations were selected to represent a range of rubber growing areas. Trees were studied for annual girth increment over five years before the initiation of tapping for latex. The results of the analyses show a consistent decrease in genetic component over the five years from 10 per cent to 0,5 per cent with a corresponding increase in the effect of environment (19,0 per cent to 93,0 per cent). The genotype x environment effects from combined analysis were significant for three factor analysis of variance. Genetic correlation between locations for annual girth increment revealed a consistent positive and significant correlation between Mococa and Matao in the fifth year (r.=0,7128) Ribeirao Preto and Matao in the fifth year (r.=0,7113) and Ribeirao Preto and Presidente Prudente in the fourth year (r.=0,9367). The implications of these findings in selection of rubber for annual girth increment trait are discussed.
Palavras-Chave: | Correlacao genetica; Genetic correlations.
Thesagro: | Hevea Brasiliensis.
Thesaurus Nal: | clones.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/92312/1/pab105-96.pdf
Registro original: | Embrapa Unidades Centrais (AI-SEDE)
Exemplares: | AI-SEDE - (4265-1) - UPE - AP - PP - 630.72081 - P474 -  - DIS