Collection of hevea materials from Rondonia territory in Brazil a preliminary study
Autor(a) principal: | |
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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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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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1793416664097751040 |