A pollinator’s efficacy is the result obtained from a single visit by a species and is often used to measure the importance of different species of floral visitors as pollinators. Therefore, this study aimed to measure the efficacy of fruit and seed set in Passiflora edulis f. flavicarpa Deg. (Passifloraceae) by manual cross-pollination, natural pollination and by Xylocopa (Neoxylocopa) frontalis (Olivier 1789), performed through a single and two visits, to evaluate if there is occurrence of pollen limitation and pollinators’ limitation in the studied crop fields. Four different treatments were performed: (1) manual cross-pollination (n = 37 flowers); (2) natural pollination (n = 52 flowers); (3) pollination by a single visit of X. frontalis (n = 41 flowers); and (4) pollination by two visits of X. frontalis (n = 31 flowers). We verified that fruit set occurred in all the treatments performed. Fruit set rate by manual cross-pollination was significantly higher than that obtained under natural conditions indicating the occurrence of pollen limitation and pollinators’ limitation under natural pollination. Regarding the number of seeds, analysis of variance (ANOVA) did not indicate a significant difference between the mean seed set for the different types of pollination evaluated. The management of occupied nests, the introduction of trap-nests, and the conservation of native vegetation in areas close to the yellow passion fruit crops can increase pollinators’ population. The greater richness and abundance of pollinators are essential to promote a greater number of fruit and seed set in the yellow passion fruit crops.

传粉者的功效是从一个物种的单次访问中获得的结果，通常用于衡量不同物种的花卉访问者作为传粉者的重要性。因此，本研究旨在衡量水果和种子组的疗效西番莲˚F 。flavicarpa度。(Passifloraceae) 通过人工异花授粉、自然授粉和Xylocopa ( Neoxylocopa ) frontalis (Olivier 1789)，通过一次和两次访问进行，以评估在研究的作物田中是否存在花粉限制和传粉媒介限制。进行了四种不同的处理：（1）人工异花授粉（n = 37 朵花）；（2）自然授粉（n = 52 朵花）；(3) X. frontalis ( n = 41 花)的单次访问授粉；(4) X. frontalis ( n= 31 朵花）。我们证实在所有进行的处理中都发生了坐果。人工异花授粉的坐果率明显高于自然条件下的坐果率，表明自然授粉下发生了花粉限制和传粉者限制。关于种子数量，方差分析 (ANOVA) 并未表明所评估的不同授粉类型的平均种子集之间存在显着差异。在靠近黄色百香果作物的地区管理被占用的巢穴、引入陷阱巢穴和保护原生植被可以增加传粉媒介的数量。传粉媒介更加丰富和丰富对于促进黄色百香果作物中更多的果实和种子结实至关重要。