Indirect estimation of leaf area in genotypes of 'Conilon' coffee (Coffea canephora Pierre ex A. Froehner).
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , |
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/1100949 |
Resumo: | Leaf area is an important parameter in agronomic and physiological studies; thereby, the techniques used for its determination should be simple, fast and accurate. The objective of this study was to evaluate the efficiency of an equation for the indirect determination of leaf area in 'Conilon' (Coffea canephora) genotypes cultivated in the Western Amazon. The experiment was carried out in Porto Velho, Rondônia, in August and September 2011. It was arranged in a completely randomized 2 × 15 factorial design combining two methods of determining leaf area (estimated and actual) and fifteen 'Conilon' coffee genotypes, with 64 replicates. The estimated leaf area was determined by the equation LA = 0.3064 × Age-0.0556× LMR-2.0133(R2=0.98), developed by Partelli et al. (2006), while the actual leaf area was obtained from images of leaves scanned into digital format using an image scanner. The genotypes belong to the Coffee Breeding Program at Embrapa Rondônia. The efficiency of the equation for determining leaf area of 'Conilon' coffee varies according to the genotype evaluated; therefore, the equation must not be used without prior calibration. As the species is a perennial crop and the number of commercial genotypes widely accepted by farmers is restricted, the validation of the equation or the development of new equations capable of estimating the leaf area of the cultivated genotypes can help in the management of coffee plantationsn. |
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Indirect estimation of leaf area in genotypes of 'Conilon' coffee (Coffea canephora Pierre ex A. Froehner).Lâmina de folhaCoffea CanephoraÁrea FoliarCaféGenótipoLeaf area is an important parameter in agronomic and physiological studies; thereby, the techniques used for its determination should be simple, fast and accurate. The objective of this study was to evaluate the efficiency of an equation for the indirect determination of leaf area in 'Conilon' (Coffea canephora) genotypes cultivated in the Western Amazon. The experiment was carried out in Porto Velho, Rondônia, in August and September 2011. It was arranged in a completely randomized 2 × 15 factorial design combining two methods of determining leaf area (estimated and actual) and fifteen 'Conilon' coffee genotypes, with 64 replicates. The estimated leaf area was determined by the equation LA = 0.3064 × Age-0.0556× LMR-2.0133(R2=0.98), developed by Partelli et al. (2006), while the actual leaf area was obtained from images of leaves scanned into digital format using an image scanner. The genotypes belong to the Coffee Breeding Program at Embrapa Rondônia. The efficiency of the equation for determining leaf area of 'Conilon' coffee varies according to the genotype evaluated; therefore, the equation must not be used without prior calibration. As the species is a perennial crop and the number of commercial genotypes widely accepted by farmers is restricted, the validation of the equation or the development of new equations capable of estimating the leaf area of the cultivated genotypes can help in the management of coffee plantationsn.MARCELO CURITIBA ESPINDULA, CPAF-RO; ALEXANDRE MARTINS ABDAO DOS PASSOS, CNPMS; Larissa Fatarelli Bento Araújo, Bolsista; ALAERTO LUIZ MARCOLAN, CPAF-RO; Fábio Luiz Partelli, Universidade Federal do Espírito Santo; ANDRE ROSTAND RAMALHO, CPAF-RO.ESPINDULA, M. C.PASSOS, A. M. A. dosARAUJO, L. F. B.MARCOLAN, A. L.PARTELLI, F. L.RAMALHO, A. R.2018-12-07T23:47:57Z2018-12-07T23:47:57Z2018-12-0720182018-12-07T23:47:57Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleAustralian Journal of Crop Science, v. 12, n. 6, p. 990-994, 2018.http://www.alice.cnptia.embrapa.br/alice/handle/doc/110094910.21475/ajcs.18.12.06.PNE1090enginfo: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:EMBRAPA2018-12-07T23:48:05Zoai:www.alice.cnptia.embrapa.br:doc/1100949Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542018-12-07T23:48:05falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542018-12-07T23:48:05Repositório 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 |
Indirect estimation of leaf area in genotypes of 'Conilon' coffee (Coffea canephora Pierre ex A. Froehner). |
title |
Indirect estimation of leaf area in genotypes of 'Conilon' coffee (Coffea canephora Pierre ex A. Froehner). |
spellingShingle |
Indirect estimation of leaf area in genotypes of 'Conilon' coffee (Coffea canephora Pierre ex A. Froehner). ESPINDULA, M. C. Lâmina de folha Coffea Canephora Área Foliar Café Genótipo |
title_short |
Indirect estimation of leaf area in genotypes of 'Conilon' coffee (Coffea canephora Pierre ex A. Froehner). |
title_full |
Indirect estimation of leaf area in genotypes of 'Conilon' coffee (Coffea canephora Pierre ex A. Froehner). |
title_fullStr |
Indirect estimation of leaf area in genotypes of 'Conilon' coffee (Coffea canephora Pierre ex A. Froehner). |
title_full_unstemmed |
Indirect estimation of leaf area in genotypes of 'Conilon' coffee (Coffea canephora Pierre ex A. Froehner). |
title_sort |
Indirect estimation of leaf area in genotypes of 'Conilon' coffee (Coffea canephora Pierre ex A. Froehner). |
author |
ESPINDULA, M. C. |
author_facet |
ESPINDULA, M. C. PASSOS, A. M. A. dos ARAUJO, L. F. B. MARCOLAN, A. L. PARTELLI, F. L. RAMALHO, A. R. |
author_role |
author |
author2 |
PASSOS, A. M. A. dos ARAUJO, L. F. B. MARCOLAN, A. L. PARTELLI, F. L. RAMALHO, A. R. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
MARCELO CURITIBA ESPINDULA, CPAF-RO; ALEXANDRE MARTINS ABDAO DOS PASSOS, CNPMS; Larissa Fatarelli Bento Araújo, Bolsista; ALAERTO LUIZ MARCOLAN, CPAF-RO; Fábio Luiz Partelli, Universidade Federal do Espírito Santo; ANDRE ROSTAND RAMALHO, CPAF-RO. |
dc.contributor.author.fl_str_mv |
ESPINDULA, M. C. PASSOS, A. M. A. dos ARAUJO, L. F. B. MARCOLAN, A. L. PARTELLI, F. L. RAMALHO, A. R. |
dc.subject.por.fl_str_mv |
Lâmina de folha Coffea Canephora Área Foliar Café Genótipo |
topic |
Lâmina de folha Coffea Canephora Área Foliar Café Genótipo |
description |
Leaf area is an important parameter in agronomic and physiological studies; thereby, the techniques used for its determination should be simple, fast and accurate. The objective of this study was to evaluate the efficiency of an equation for the indirect determination of leaf area in 'Conilon' (Coffea canephora) genotypes cultivated in the Western Amazon. The experiment was carried out in Porto Velho, Rondônia, in August and September 2011. It was arranged in a completely randomized 2 × 15 factorial design combining two methods of determining leaf area (estimated and actual) and fifteen 'Conilon' coffee genotypes, with 64 replicates. The estimated leaf area was determined by the equation LA = 0.3064 × Age-0.0556× LMR-2.0133(R2=0.98), developed by Partelli et al. (2006), while the actual leaf area was obtained from images of leaves scanned into digital format using an image scanner. The genotypes belong to the Coffee Breeding Program at Embrapa Rondônia. The efficiency of the equation for determining leaf area of 'Conilon' coffee varies according to the genotype evaluated; therefore, the equation must not be used without prior calibration. As the species is a perennial crop and the number of commercial genotypes widely accepted by farmers is restricted, the validation of the equation or the development of new equations capable of estimating the leaf area of the cultivated genotypes can help in the management of coffee plantationsn. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-07T23:47:57Z 2018-12-07T23:47:57Z 2018-12-07 2018 2018-12-07T23:47:57Z |
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 |
Australian Journal of Crop Science, v. 12, n. 6, p. 990-994, 2018. http://www.alice.cnptia.embrapa.br/alice/handle/doc/1100949 10.21475/ajcs.18.12.06.PNE1090 |
identifier_str_mv |
Australian Journal of Crop Science, v. 12, n. 6, p. 990-994, 2018. 10.21475/ajcs.18.12.06.PNE1090 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1100949 |
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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1794503466322755584 |