Pulp Mineral Content of Passion Fruit Germplasm Grown in Ecuador and Its Relationship with Fruit Quality Traits

Abstract

There are several species of passion fruit grown in South America. However, there is a lack of information about the mineral content in their pulp. Thus, the objective of the present research was to determine the mineral content in the pulp of different germplasms of passion fruit [Passiflora edulis f. flavicarpa (INIAP 2009 and P10), P. alata (Sweet passion fruit), P. edulis f. edulis (Gulupa) and Passiflora sp. (Criollo POR1 and Criollo PICH1)] grown in Ecuador and to determine their relationship with relevant fruit quality traits. The results showed that high Mg content was associated with less peel thickness, soluble solids was negatively related to K and B content, and vitamin C was negatively related to S content. INIAP 2009 had high titratable acidity and fruit weight but low N and Na; P10 showed the highest contents of N, K, Na, Mn and fruit weight but less P, Mg, and Fe; sweet passion fruit showed high S, Zn, Cu, soluble solids, and peel thickness but low K, Ca, B, and titratable acidity; Gulupa had high Mg, B, and Zn but low S, Fe, and Mn; Criollo POR1 showed high N and Fe but low Zn; and Criollo PICH1 showed high P, Ca, Mg, and Cu but low soluble solids and peel thickness. These results provide additional information on passion fruit germplasm grown in Ecuador and constitutes a reference for further breeding programs.

Influence of the Hypobaric Method in Physicochemical Fruit Quality Traits of Yellow and Purple Passion Fruit Stored in Cold Temperature

“…It has been reported that some germplasm of yellow passion fruit (i.e. INIAP 2009) can reach up to twice the peel thickness of purple passion fruit (Viera et al, 2022a); however, these authors did not find statistical differences for this trait between 'POR1' and 'Gulupa' grown in open field. In this study, 'POR1' showed higher peel thickness than the value (5.87 mm) reported by the latter authors but it has been reported that this trait might be varied due to a genotype × environment effect (Viera et al, 2020).…”