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dc.contributor.authorPINHEIRO, K. M.pt_BR
dc.contributor.authorSILVA, T. G. F. dapt_BR
dc.contributor.authorDINIZ, W. J. da S.pt_BR
dc.contributor.authorCARVALHO, H. F. de S.pt_BR
dc.contributor.authorMOURA, M. S. B. dept_BR
dc.date.accessioned2015-05-07T11:11:11Zpt_BR
dc.date.available2015-05-07T11:11:11Zpt_BR
dc.date.created2015-05-07pt_BR
dc.date.issued2015pt_BR
dc.identifier.citationPesquisa Agropecuária Tropical, Goiânia, v. 45, n. 2, p. 163-171, abr./jun. 2015.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1014966pt_BR
dc.descriptionMethods for determining leaf area index have been applied to various agricultural crops. However, their uses are limited to broadleaf plants, with no record for forage cactus, whose radiation interception is performed by the cladode. This study aimed to evaluate the use of different indirect methods to estimate the area index of forage cactus cladode. Cladodes from clones of Nopalea cochenillifera Salm Dyck, Nopalea cochenillifera Salm Dyck and Opuntia stricta (Haw) Haw were used, being sampled sixty plants per clone, distributed in five sub-areas with 12 plants. Light interception methods with different measurement techniques were evaluated, as well as the planimetric, leaf discs and odeling methods. The estimate of area index of the forage cactus cladode by the modeling method was considered the most accurate one, for presenting precision coefficient values and accuracy above 0.90, as well as a performance varying from very good to excellent. However, its applicability depends on the use of estimated parameters or adjusted value equations. The methods of light interception and its derivations, leaf discs of medium cladodes and planimetry of medium cladodes are not recommended, due to their low precision and accuracy.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectIndice de área cladódiopt_BR
dc.subjectNopaleapt_BR
dc.subjectAnalisador de dosselpt_BR
dc.subjectMétodo destrutivopt_BR
dc.subjectCanopy analyzerpt_BR
dc.subjectDestructive methodpt_BR
dc.titleIndirect methods for determining the area index of forage cactus cladodes.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2016-03-29T11:11:11Zpt_BR
dc.subject.thesagroPalma forrageirapt_BR
dc.subject.nalthesaurusOpuntiapt_BR
riaa.ainfo.id1014966pt_BR
riaa.ainfo.lastupdate2016-03-29pt_BR
dc.identifier.doi10.1590/1983-40632015v4530617pt_BR
dc.contributor.institutionKARINA MENDES PINHEIRO, Universidade Federal Rural de Pernambuco, Unidade Acadêmica de Serra Talhada, Serra Talhada, PE; THIERES GEORGE FREIRE DA SILVA, Universidade Federal Rural de Pernambuco, Unidade Acadêmica de Serra Talhada, Serra Talhada, PE; WELLINGTON JAIRO DA SILVA DINIZ, Universidade Federal Rural de Pernambuco, Unidade Acadêmica de Serra Talhada, Serra Talhada, PE; HERICA FERNANDA DE SOUSA CARVALHO, Universidade Federal Rural de Pernambuco, Unidade Acadêmica de Serra Talhada, Serra Talhada, PE; MAGNA SOELMA BESERRA DE MOURA, CPATSA.pt_BR
Aparece nas coleções:Artigo em periódico indexado (CPATSA)

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