Agricultural Sciences, 2019, 10, 1032-1038 http://www.scirp.org/journal/as ISSN Online: 2156-8561 ISSN Print: 2156-8553 DOI: 10.4236/as.2019.108078 Aug. 12, 2019 1032 Agricultural Sciences Sample Dimension for Evaluating Characters of Yellow Mombin Omar Schmildt 1 , Vinicius de Souza Oliveira 1 , Renan Garcia Malikouski 1 , Adriel Lima Nascimento 1 , Karina Tiemi Hassuda dos Santos 1 , Hérica Chisté 1 , Gleyce Pereira Santos 1 , Marcio Paulo Czepak 2 , Rodrigo Sobreira Alexandre 3 , Edilson Romais Schmildt 2 1 Postgraduate Program in Tropical Agriculture, Federal University of Espírito Santo, São Mateus, ES, Brazil 2 Departament of Agrarian and Biological Sciences, Federal University of Espírito Santo, São Mateus, ES, Brazil 3 Departament of Forest and Wood Science, Federal University of Espírito Santo, Jerônimo Monteiro, ES, Brazil Abstract The objective of this study was to determine the sample size needed to eva- luate characters of mature fruits of yellow mombin (Spondias mombin L.). 100 fruits were evaluated from plants grown under a shading system. In the laboratory, these fruits were measured by the characters: longitudinal length (mm); equatorial diameter (mm); fruit mass (g); yield of pulp (%); total so- luble solids—TSS (˚Brix); titratable acidity—TA (% citric acid) and ratio (TSS/TA), being calculated the measures of central tendency and dispersion, and verified normality. Next, the sample size for each character was deter- mined. For experimental evaluation of cajámirim fruits, considering an accuracy of 10% around the mean, 40 fruits per treatment should be eva- luated, considering a completely randomized experiment. Keywords Spondias mombin L., Error of Estimation, Sampling 1. Introduction Among the fruit species of economic importance for Brazil, the most important are those belonging to the genus Spondias, represented by red mombin, otaheite apple, Brazil plum and yellow mombin, with relevance to mombin, due to their multiplicity of use and agroindustrial potential [1]. In Brazil, mombin plants are found mainly in the North and Northeast States, where their fruits receive dif- ferent denominations, such as cajá, cajá true, cajá-mirim or taperebá. participa- How to cite this paper: Schmildt, O., de Souza Oliveira, V., Malikouski, R.G., Nas- cimento, A.L., dos Santos, K.T.H., Chisté, H., Santos, G.P., Czepak, M.P., Alexandre, R.S. and Schmildt, E.R. (2019) Sample Dimension for Evaluating Characters of Yellow Mombin. Agricultural Sciences, 10, 1032-1038. https://doi.org/10.4236/as.2019.108078 Received: July 6, 2019 Accepted: August 9, 2019 Published: August 12, 2019 Copyright © 2019 by author(s) and Scientific Research Publishing Inc. This work is licensed under the Creative Commons Attribution International License (CC BY 4.0). http://creativecommons.org/licenses/by/4.0/ Open Access