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Exudate coloring test suitability for assessing the viability of coffee seeds (Coffea arabica L.)

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dc.contributor.author Hilst, Paulo César
dc.contributor.author Dias, Denise Cunha Fernandes dos Santos
dc.contributor.author Gama, Guilherme Fontes Valory
dc.contributor.author Araújo, Joyce de Oliveira
dc.date.accessioned 2022-02-08T13:37:46Z
dc.date.available 2022-02-08T13:37:46Z
dc.date.issued 2016
dc.identifier.citation HILST, P. C. et al. Exudate coloring test suitability for assessing the viability of coffee seeds (Coffea arabica L.). Journal of Seed Science, Londrina, v. 38, n. 3, p. 212-218, jul./set. 2016. pt_BR
dc.identifier.issn 2317-1545
dc.identifier.uri http://dx.doi.org/10.1590/2317-1545v38n3162923 pt_BR
dc.identifier.uri http://www.sbicafe.ufv.br/handle/123456789/13294
dc.description.abstract The exudate coloring test has been promising in order to quickly evaluate the quality of coffee seeds. The objective of the research was to adjust the coloring exudate test for coffee seeds and to evaluate the influence of the water content of seeds and of the imbibition period on the test results. Seeds from five lots of ‘Catuaí 44’ were used, with the following water contents: 30%, 20% and 12%. For the exudate coloring test, the parchment and silver skin (spermoderm) from the seeds were removed. Then, the seeds were distributed on a paper towel, moistened with water, and kept in a germinator at 25 °C for 24, 48, 72, 96 and 120 h. Four classes of coloring intensity were established: absence of color (A), light (L), medium (M) and strong (S) intensities, assigning the values 0, 3, 5 and 10 for each class, respectively. The Viability Index (VI) was calculated by the equation VI=100-(0xA)-(3xL)-(5xM)-(10xS). The exudate coloring test may be recommended to estimate the viability of coffee seeds, providing results correlated to the germination test. The best results were obtained for the seeds with 12% moisture content imbibed for 72, 96 and 120 h and seeds with 30% moisture content after 72 and 120 h of imbibition. pt_BR
dc.format pdf pt_BR
dc.language.iso en pt_BR
dc.publisher Associação Brasileira de Tecnologia de Sementes - ABRATES pt_BR
dc.relation.ispartofseries Journal of Seed Science;v.38, n.3, 2016
dc.rights Open Access pt_BR
dc.subject Lixiviado pt_BR
dc.subject Cor pt_BR
dc.subject Qualidade fisiológica pt_BR
dc.subject Coffea arabica L. pt_BR
dc.subject.classification Cafeicultura::Sementes e mudas pt_BR
dc.title Exudate coloring test suitability for assessing the viability of coffee seeds (Coffea arabica L.) pt_BR
dc.type Artigo pt_BR

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