Collection of hevea materials from Rondonia territory in Brazil a preliminary study

Detalhes bibliográficos
Autor(a) principal: Gonçalves, Paulo de Souza
Data de Publicação: 2014
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/15757
Resumo: Seven characteristics were studied in 27 selected wild mother trees at Ouro Preto, Rondônia Territory: yield, circumference, bark thickness, total number of latex vessels, density of latex vessels per 5 mm per ring, and average distance between consecutive latex vessel rings. All the trees were also evaluated for the degree of incidence of South American Leaf Blight (SALB). Great variability was observed among the individual selected rubber trees growing under similar environmental conditions. Linear correlations among the quantitative characteristics were estimated. Positive correlations were found between yield and circumference, bark thickness, total number of latex vessel rings and density of latex vessels per 5 mm per ring. Low relationship was found between yield and diameter of the latex vessels and between yield and average distance between consecutive latex vessel rings. Regression analysis of yield and the values of the quantitative characters showed the regression coefficient to be highly significant to circumference, bark thickness, total number of latex vessel rings and density of latex vessels per 5 mm per ring.
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spelling Collection of hevea materials from Rondonia territory in Brazil a preliminary studyColeção de material de seringueira selecionado no território de Rondônia. Estudo preliminarHevea spp.; rubber tree; linear correlation; regression coefficient; genetic variation; selectionHevea spp.; correlação linear; coeficiente de regressão; variação genética; seleçãoSeven characteristics were studied in 27 selected wild mother trees at Ouro Preto, Rondônia Territory: yield, circumference, bark thickness, total number of latex vessels, density of latex vessels per 5 mm per ring, and average distance between consecutive latex vessel rings. All the trees were also evaluated for the degree of incidence of South American Leaf Blight (SALB). Great variability was observed among the individual selected rubber trees growing under similar environmental conditions. Linear correlations among the quantitative characteristics were estimated. Positive correlations were found between yield and circumference, bark thickness, total number of latex vessel rings and density of latex vessels per 5 mm per ring. Low relationship was found between yield and diameter of the latex vessels and between yield and average distance between consecutive latex vessel rings. Regression analysis of yield and the values of the quantitative characters showed the regression coefficient to be highly significant to circumference, bark thickness, total number of latex vessel rings and density of latex vessels per 5 mm per ring. Foram estudadas sete características de 27 matrizes selecionadas em Ouro Preto, no Território Federal de Rondônia. Nas seleções, foram determinadas a produção, a circunferência, a espessura de casca, o número total de vasos laticíferos, a densidade de vasos laticíferos em 5 mm do anel e a distância média entre os anéis consecutivos de vasos laticíferos. Todas as árvores foram avaliadas também quanto ao grau de incidência do mal sul-americano das folhas. Grande viabilidade foi observada entre os indivíduos selecionados vegetando sob as mesmas condições ambientais. Foram estimadas as correlações lineares entre as características quantitativas. Foram encontradas correlações positivas entre a produção e a circunferência do tronco, a espessura de casca, o número total de anéis de vasos laticíferos, e a densidade dos vasos laticíferos em 5 mm do anel. Foi encontrada baixa correlação da produção com o diâmetro dos vasos laticíferos e da produção com a distância média entre os anéis consecutivos de vasos laticíferos. A análise de regressão de produção e os valores dos caracteres quantitativos estudados mostraram coeficientes de regressão altamente significativos para circunferência, espessura da casca, número total de anéis de vasos laticíferos e densidade de vasos laticíferos em 5 mm do anel.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraGonçalves, Paulo de Souza2014-04-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/15757Pesquisa Agropecuaria Brasileira; v.17, n.4, abr. 1982; 575-582Pesquisa Agropecuária Brasileira; v.17, n.4, abr. 1982; 575-5821678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAenghttps://seer.sct.embrapa.br/index.php/pab/article/view/15757/9810info:eu-repo/semantics/openAccess2014-04-16T13:24:07Zoai:ojs.seer.sct.embrapa.br:article/15757Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-16T13:24:07Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Collection of hevea materials from Rondonia territory in Brazil a preliminary study
Coleção de material de seringueira selecionado no território de Rondônia. Estudo preliminar
title Collection of hevea materials from Rondonia territory in Brazil a preliminary study
spellingShingle Collection of hevea materials from Rondonia territory in Brazil a preliminary study
Gonçalves, Paulo de Souza
Hevea spp.; rubber tree; linear correlation; regression coefficient; genetic variation; selection
Hevea spp.; correlação linear; coeficiente de regressão; variação genética; seleção
title_short Collection of hevea materials from Rondonia territory in Brazil a preliminary study
title_full Collection of hevea materials from Rondonia territory in Brazil a preliminary study
title_fullStr Collection of hevea materials from Rondonia territory in Brazil a preliminary study
title_full_unstemmed Collection of hevea materials from Rondonia territory in Brazil a preliminary study
title_sort Collection of hevea materials from Rondonia territory in Brazil a preliminary study
author Gonçalves, Paulo de Souza
author_facet Gonçalves, Paulo de Souza
author_role author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Gonçalves, Paulo de Souza
dc.subject.por.fl_str_mv Hevea spp.; rubber tree; linear correlation; regression coefficient; genetic variation; selection
Hevea spp.; correlação linear; coeficiente de regressão; variação genética; seleção
topic Hevea spp.; rubber tree; linear correlation; regression coefficient; genetic variation; selection
Hevea spp.; correlação linear; coeficiente de regressão; variação genética; seleção
description Seven characteristics were studied in 27 selected wild mother trees at Ouro Preto, Rondônia Territory: yield, circumference, bark thickness, total number of latex vessels, density of latex vessels per 5 mm per ring, and average distance between consecutive latex vessel rings. All the trees were also evaluated for the degree of incidence of South American Leaf Blight (SALB). Great variability was observed among the individual selected rubber trees growing under similar environmental conditions. Linear correlations among the quantitative characteristics were estimated. Positive correlations were found between yield and circumference, bark thickness, total number of latex vessel rings and density of latex vessels per 5 mm per ring. Low relationship was found between yield and diameter of the latex vessels and between yield and average distance between consecutive latex vessel rings. Regression analysis of yield and the values of the quantitative characters showed the regression coefficient to be highly significant to circumference, bark thickness, total number of latex vessel rings and density of latex vessels per 5 mm per ring.
publishDate 2014
dc.date.none.fl_str_mv 2014-04-16
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/15757
url https://seer.sct.embrapa.br/index.php/pab/article/view/15757
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/15757/9810
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.17, n.4, abr. 1982; 575-582
Pesquisa Agropecuária Brasileira; v.17, n.4, abr. 1982; 575-582
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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