Passiflora foetida yielding and nutritional composition

Abstract

Even though wild maracuja (Passiflora foetida) is cultivated in tropical areas, no thorough investigation regarding its yield or nutritional composition is easily available. This paper aims to estimate its fruit yield, using four staking systems; as well as determine both its fruit pulp and peel chemical composition. The treatments used were T1= No staking, T2= A vertical rod, T3= A horizontal rod, 60 cm from the ground, T4= Two horizontal poles, 60 and 120 cm from the ground, and T5= Using horizontal trellises, 80 cm above ground. The findings showed T5, T4, T3, T2 and T1 to yield 1.40, 1.05, 0.66, 0.40 and 0.35 tons of fruits per hectare, respectively. In general, the fruit pulp held higher nutrient content than that of fruit peel. The pulp presented 2.6%, 4.5% and 24.3% protein, lipids and carbohydrates, respectively. We conclude this genotype to bear low yielding potential, which may be lightly enhanced when cultivated using horizontal trellises.Resumo -Apesar de que o maracujaí (Passiflora foetida) é cultivado nos trópicos, há falta de trabalhos relacionados à sua produtividade e composição nutricional. O objetivo deste trabalho foi estimar a produtividade desta espécie utilizando quatro sistemas de tutoramento, assim como determinar a composição química da polpa e da pele, separadamente. Os tratamentos utilizados foram: T1= sem tutoramento; T2= uma vara vertical; T3= uma vara horizontal a 60 cm do solo; T4= duas varas horizontais a 60 e 120 cm do solo, e T5= usando uma latada a 80 cm do solo. Resultados mostraram que T5; T4; T3;T2 e T1 produziram 1,4; 1,05; 0,66; 0,40 e 0,35 t de frutos por hectare, respectivamente. Em geral, a polpa da fruta teve teores mais elevados de nutrientes que a pele. A polpa apresentou 2.6%, 4.5% e 24.3% de proteínas, lipídeos e carboidratos, respectivamente. Portanto, este genótipo tem baixo potencial produtivo, mas pode ser melhorado levemente utilizando uma latada. Termos para indexação: Composição físico-química, latada, fruto amazônico.

Growth of wild passion fruit (Passiflora foetida L.) rootstock under irrigation water salinity

“…Continuous irrigation with saline water in the production of passion fruit seedlings increases the concentration of salts in the substrate, indirectly measured by the conductivity of the saturation extract (Bezerra et al, 2014). This excess of salts caused negative osmotic effects, as Excess salts alter the physiology of seedlings, reducing stomatal conductance, transpiration and net assimilation of carbon dioxide (Silva et al, 2019). Thus, it leads to less accumulation of biomass, as evidenced in this study.…”

“…The grafting of cultivated species onto wild species can ensure the viability of passion fruit cultivation, allowing the combination of desirable characteristics between the species (Bernardes et al, 2020). Among the potential wild species for grafting is P. foetida (Silva Filho et al, 2019;Bernardes et al, 2020), which has leaf trichomes and glands on the leaves and petioles that enable salinity tolerance (Crochemore et al, 2003), besides having compatibility with P. edulis (Silva et al, 2018a).…”