ABSTRACT

Genetic parameters to fruit quality of mango hybrids were estimated using a mixed model REM/BLUP. Twenty-seven hybrids (Tommy Atkins cross with Haden, Palmer, Van Dyke, Kent and Coquinho) were evaluated, in two crop seasons. Physical and chemical traits analyzed were weight, longitudinal length, transverse diameter, fiber presence, pulp firmness, skin and pulp color, fibers presence titratable acidity, and soluble solids (SS). Repeatability varying from 0.53 (SS) to 0.89 (diameter). Selective Accuracy (A_cm) based on average harvests varying from 0.73 (SS) to 0.94 (weight, length, and diameter). According to selection gain and the new averages the most promising hybrids were selected.

摘要

使用混合模型 REM/BLUP 估计芒果杂种果实品质的遗传参数。在两个作物季节评估了 27 个杂交品种（Tommy Atkins 与 Haden、Palmer、Van Dyke、Kent 和 Coquinho 杂交）。分析的物理和化学特征是重量、纵向长度、横向直径、纤维存在、纸浆硬度、皮肤和纸浆颜色、纤维存在、可滴定酸度和可溶性固体 (SS)。重复性从 0.53（SS）到 0.89（直径）不等。基于从 0.73 (SS) 到 0.94（重量、长度和直径）变化的平均收获的选择性准确度 ( A _cm )。根据选择增益和新平均值，选择了最有希望的杂交种。