In situ evaluation of fruit yield and estimation of repeatability coefficient for major fruit traits of umbu tree [Spondias tuberosa (Anacardiaceae)] in the semi-arid region of Brazil.
Autor(a) principal: | |
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Data de Publicação: | 1999 |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/133779 |
Resumo: | The umbu tree (Spondias tuberosa) is a xerophytic wood species endemic to the Northeast of Brazil. The present work reports a three-year in situ evaluation of major yield components in a random set of trees in Petrolina city, Pernambuco State, Brazil and the application of repeatability coefficient in the context of genetic resources utilization. Five traits were assessed: total fruit yield per plant (FY); total number of fruits per plant (NF); average fruit weight (FW); average pulp weight (PW); and average fruit diameter (FD). The values observed for FY ranged from 4.2-184kg with mean of 61.5kg. The values for NF ranged from 257 to 12,981 fruits/tree with mean 3,993 fruits. For FW, the range was from 10.82-23.36g with mean of 16.03g. The values for PW ranged from 7 to 17g with mean of 11.2g, while FD values varied from 2.5 to 3.5 cm with mean of 3.0 cm. Six methods were employed to estimate repeatability coefficient (r) for all parameters. The r ranged from 0.68-0.76 for NF; 0.87-0.89 for FW; 0.65-0.75 for FY; 0.64-0.78 for PW and 0.70-0.84 for FD. Narrower ranges across methods were observed to r-values greater than 0.80, as observed for FW and FD. Three to four years of measurements will be necessary for FY, NF, and PW and one year for FW to obtain a precision of 90% to provide a reliable identification of individuals for in situ or situ conservation. |
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In situ evaluation of fruit yield and estimation of repeatability coefficient for major fruit traits of umbu tree [Spondias tuberosa (Anacardiaceae)] in the semi-arid region of Brazil.AvaliacaoRegiao semi-aridaEvaluationSizeSemi-arid regionUmbuFrutaProdutividadeTamanhoSpondias TuberosafruitsyieldsThe umbu tree (Spondias tuberosa) is a xerophytic wood species endemic to the Northeast of Brazil. The present work reports a three-year in situ evaluation of major yield components in a random set of trees in Petrolina city, Pernambuco State, Brazil and the application of repeatability coefficient in the context of genetic resources utilization. Five traits were assessed: total fruit yield per plant (FY); total number of fruits per plant (NF); average fruit weight (FW); average pulp weight (PW); and average fruit diameter (FD). The values observed for FY ranged from 4.2-184kg with mean of 61.5kg. The values for NF ranged from 257 to 12,981 fruits/tree with mean 3,993 fruits. For FW, the range was from 10.82-23.36g with mean of 16.03g. The values for PW ranged from 7 to 17g with mean of 11.2g, while FD values varied from 2.5 to 3.5 cm with mean of 3.0 cm. Six methods were employed to estimate repeatability coefficient (r) for all parameters. The r ranged from 0.68-0.76 for NF; 0.87-0.89 for FW; 0.65-0.75 for FY; 0.64-0.78 for PW and 0.70-0.84 for FD. Narrower ranges across methods were observed to r-values greater than 0.80, as observed for FW and FD. Three to four years of measurements will be necessary for FY, NF, and PW and one year for FW to obtain a precision of 90% to provide a reliable identification of individuals for in situ or situ conservation.CARLOS ANTONIO FERNANDES SANTOS, CPATSA.SANTOS, C. A. F.2017-11-13T23:15:46Z2017-11-13T23:15:46Z1999-12-2119992017-11-13T23:15:46Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleGenetic Resources and Crop Evolution, v. 46, p. 455-460, 1999.http://www.alice.cnptia.embrapa.br/alice/handle/doc/133779enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-11-13T23:15:53Zoai:www.alice.cnptia.embrapa.br:doc/133779Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542017-11-13T23:15:53falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-11-13T23:15:53Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
In situ evaluation of fruit yield and estimation of repeatability coefficient for major fruit traits of umbu tree [Spondias tuberosa (Anacardiaceae)] in the semi-arid region of Brazil. |
title |
In situ evaluation of fruit yield and estimation of repeatability coefficient for major fruit traits of umbu tree [Spondias tuberosa (Anacardiaceae)] in the semi-arid region of Brazil. |
spellingShingle |
In situ evaluation of fruit yield and estimation of repeatability coefficient for major fruit traits of umbu tree [Spondias tuberosa (Anacardiaceae)] in the semi-arid region of Brazil. SANTOS, C. A. F. Avaliacao Regiao semi-arida Evaluation Size Semi-arid region Umbu Fruta Produtividade Tamanho Spondias Tuberosa fruits yields |
title_short |
In situ evaluation of fruit yield and estimation of repeatability coefficient for major fruit traits of umbu tree [Spondias tuberosa (Anacardiaceae)] in the semi-arid region of Brazil. |
title_full |
In situ evaluation of fruit yield and estimation of repeatability coefficient for major fruit traits of umbu tree [Spondias tuberosa (Anacardiaceae)] in the semi-arid region of Brazil. |
title_fullStr |
In situ evaluation of fruit yield and estimation of repeatability coefficient for major fruit traits of umbu tree [Spondias tuberosa (Anacardiaceae)] in the semi-arid region of Brazil. |
title_full_unstemmed |
In situ evaluation of fruit yield and estimation of repeatability coefficient for major fruit traits of umbu tree [Spondias tuberosa (Anacardiaceae)] in the semi-arid region of Brazil. |
title_sort |
In situ evaluation of fruit yield and estimation of repeatability coefficient for major fruit traits of umbu tree [Spondias tuberosa (Anacardiaceae)] in the semi-arid region of Brazil. |
author |
SANTOS, C. A. F. |
author_facet |
SANTOS, C. A. F. |
author_role |
author |
dc.contributor.none.fl_str_mv |
CARLOS ANTONIO FERNANDES SANTOS, CPATSA. |
dc.contributor.author.fl_str_mv |
SANTOS, C. A. F. |
dc.subject.por.fl_str_mv |
Avaliacao Regiao semi-arida Evaluation Size Semi-arid region Umbu Fruta Produtividade Tamanho Spondias Tuberosa fruits yields |
topic |
Avaliacao Regiao semi-arida Evaluation Size Semi-arid region Umbu Fruta Produtividade Tamanho Spondias Tuberosa fruits yields |
description |
The umbu tree (Spondias tuberosa) is a xerophytic wood species endemic to the Northeast of Brazil. The present work reports a three-year in situ evaluation of major yield components in a random set of trees in Petrolina city, Pernambuco State, Brazil and the application of repeatability coefficient in the context of genetic resources utilization. Five traits were assessed: total fruit yield per plant (FY); total number of fruits per plant (NF); average fruit weight (FW); average pulp weight (PW); and average fruit diameter (FD). The values observed for FY ranged from 4.2-184kg with mean of 61.5kg. The values for NF ranged from 257 to 12,981 fruits/tree with mean 3,993 fruits. For FW, the range was from 10.82-23.36g with mean of 16.03g. The values for PW ranged from 7 to 17g with mean of 11.2g, while FD values varied from 2.5 to 3.5 cm with mean of 3.0 cm. Six methods were employed to estimate repeatability coefficient (r) for all parameters. The r ranged from 0.68-0.76 for NF; 0.87-0.89 for FW; 0.65-0.75 for FY; 0.64-0.78 for PW and 0.70-0.84 for FD. Narrower ranges across methods were observed to r-values greater than 0.80, as observed for FW and FD. Three to four years of measurements will be necessary for FY, NF, and PW and one year for FW to obtain a precision of 90% to provide a reliable identification of individuals for in situ or situ conservation. |
publishDate |
1999 |
dc.date.none.fl_str_mv |
1999-12-21 1999 2017-11-13T23:15:46Z 2017-11-13T23:15:46Z 2017-11-13T23:15:46Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Genetic Resources and Crop Evolution, v. 46, p. 455-460, 1999. http://www.alice.cnptia.embrapa.br/alice/handle/doc/133779 |
identifier_str_mv |
Genetic Resources and Crop Evolution, v. 46, p. 455-460, 1999. |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/133779 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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1794503444598358016 |