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Conilon coffee outturn index: a precise alternative for estimating grain yield

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dc.contributor.author Fialho, Gustavo Sessa
dc.contributor.author Fonseca, Aymbiré Francisco Almeida da
dc.contributor.author Ferrão, Maria Amélia Gava
dc.contributor.author Ferrão, Romário Gava
dc.contributor.author Olivoto, Tiago
dc.contributor.author Nardino, Maicon
dc.contributor.author Reis, Edvaldo Fialho dos
dc.contributor.author Sakiyama, Ney Sussumu
dc.date.accessioned 2022-11-03T11:23:30Z
dc.date.available 2022-11-03T11:23:30Z
dc.date.issued 2022-03-09
dc.identifier.citation FIALHO, Gustavo Sessa; FONSECA, Aymbiré Francisco Almeida da; FERRÃO, Maria Amélia Gava; FERRÃO, Romário Gava; OLIVOTO, Tiago; NARDINO, Maicon; REIS, Edvaldo Fialho dos; SAKIYAMA, Ney Sussumu. Conilon coffee outturn index: a precise alternative for estimating grain yield. Acta Scientiarum. Agronomy, Maringá, v. 44, n.1, p. 1-8, 2022. Available from: https://doi.org/10.4025/actasciagron.v44i1.54249. Accessed: 1 nov. 2022. pt_BR
dc.identifier.issn 1807-8621
dc.identifier.uri https://doi.org/10.4025/actasciagron.v44i1.54249 pt_BR
dc.identifier.uri http://www.sbicafe.ufv.br/handle/123456789/13618
dc.description.abstract Coffee outturn can be defined as the ratio between the harvested coffee and its respective processed grains. This character is greatly influenced by genotypic and environmental effects, and in breeding programs your analysis is costly and time-consuming. In this sense, the use of an outturn index to estimate coffee yield on experimental plots is a desirable measure aiming at reducing resources and time in postharvest evaluations. Thus, the present study aimed to evaluate the accuracy of the use of an outturn index equal to 4.0, in the estimation of Conilon coffee grains production. This index indicates that four kilograms of harvested fruit would be needed to obtain one kilogram of processed grains. Based on the average of 157 genotypes conducted in three trials and four harvests, we evaluated the relationship between harvested fruits and processed grains (FcBe), the observed (OGY), and the estimated grain yield per plant (EGY) based on FcBe equal to 4.0 (an outturn index). Descriptive statistics, adequation test for EGY, and the coincidence of occurrence of genotypes observations relating to the top 20% of all observations of OGY and EGY. In the estimation of grain yield in Conilon, the use of FcBe equal to 4.0 showed high precision in the average of the analyzed trials. However, further studies should be conducted to elucidate the effects of climate variables on the yield of Conilon coffee, especially in atypical crop years. Thus, the use of an outturn index becomes interesting in cases where the number of genotypes to be evaluated is very large and a screening of the promising ones is desirable. pt_BR
dc.format pdf pt_BR
dc.language.iso en pt_BR
dc.publisher Editora da Universidade Estadual de Maringá - EDUEM pt_BR
dc.relation.ispartofseries Acta Scientiarum. Agronomy;v. 44, n. 1, 2022;
dc.rights Open Access pt_BR
dc.subject Coffea canephora pt_BR
dc.subject Biometry pt_BR
dc.subject Desirable measure pt_BR
dc.subject.classification Cafeicultura::Colheita, pós-colheita e armazenamento pt_BR
dc.title Conilon coffee outturn index: a precise alternative for estimating grain yield pt_BR
dc.type Artigo pt_BR

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