Papaya is one of the most important fruit crops worldwide and its production depends on the availability of varieties that meet the consumer market demands. This study aimed to evaluate papaya inbred lines and select the best lines for fruit quality. A population of 97 lines of F₅ generation, that was conducted via Single Seed Descent method from the F₂ generation and derived from the crossing between Sekati and JS-12 genotypes of the heterotic group Formosa, were evaluated for nine morphoagronomic traits related to fruit quality. The data set was submitted to GT biplot and Pearson’s correlation analyzes using the R software. According to the results, the lines 96, 61, 39, 1 and 88 were indicated as favorable allele sources for the traits of average fruit weight, pulp volume, fruit firmness, pulp yield, and soluble solids, respectively. Lines 107, 19, 61 and 63 were indicated as ideotypes for per se use. Effectively, the application of the multivariate graphical approach GT biplot provides a practical and efficient new way to identify superior genotypes in papaya breeding programs.

木瓜是世界上最重要的水果作物之一，其生产取决于满足消费者市场需求的品种的可用性。本研究旨在评估木瓜自交系并选择最佳果实品质系。F ₅代的 97 个品系，通过单种子下降法从 F ₂对来自 Sekati 和 JS-12 基因型杂种优势群 Formosa 的杂交产生的 9 个与果实品质相关的形态农艺性状进行了评估。使用 R 软件将数据集提交给 GT biplot 和 Pearson 相关分析。结果表明，96、61、39、1和88品系分别为平均单果重、果肉体积、果实硬度、果肉产量和可溶性固形物等性状的有利等位基因来源。第 107、19、61 和 63 行表示为本身使用的意识形态。有效地，多变量图形方法 GT biplot 的应用提供了一种实用且有效的新方法来识别木瓜育种计划中的优良基因型。