Productivity and quality of irrigated organic yellow passion fruits in deep planting in Southeastern Amazon

Abstract

The aim of this work was to evaluate the effect of irrigation and deep planting of tall yellow passion fruit seedlings in the organic system on fruit quality and productivity. A randomized complete block design with 2x4 subdivided plots, with 8 treatments and 4 blocks was used, with irrigated and rainfed systems being plots and 4 planting depths (0.20 m, 0.40 m, 0.60 m and 0.80 m) subplots. Seedlings aged 90 days and 2 m in height were used. Before planting, all stem leaves were removed from seedlings to be buried and to IBA at concentration of 4,000 mg kg-1 was applied. The number of fruits per plant, average fruit mass and total productivity and of 1st and 2nd crops, as well as total soluble solids (TSS), total titratable acidity (TTA), ratio (TSS/TTA), commercial and equatorial diameter classification were estimated. Irrigated planting at depths of 0.20 m and 0.40 m was more productive in the first crop, but there was no difference in the total productivity and in the second crop. Neither irrigation nor plant depth altered the chemical quality of fruits and commercial classification.

Quality of yellow passion fruit as a function of irrigation, artificial pollination, and protected cultivation

“…It is common for these quality indicators to remain unchanged with organic crop management (Francisco et al, 2020;Rezende et al, 2017;Silva et al 2019;Uchôa et al 2018Uchôa et al , 2021b. The contents of titratable acidity and soluble solids in the two crop seasons remained above the respective minimum values of 2.5% and 11% established by the quality standards (Brasil, 2000).…”

“…The external fruit appearance was analyzed based on the criteria established by the Brazilian program for the improvement of commercial and packaging standards of horticultural products (Table 2). nce of severe and slight damage in passion fruit Source: (Brasil, 2000;Francisco et al, 2020).…”

“…Source:(Brasil, 2000;Francisco et al, 2020)Silva et al (2023) Quality of yellow passion fruit as a function...…”

Profitability of Organic Yellow Passion Fruit as a Function of Irrigation, Protected Cultivation and Pollination

“…The economic viability of organic passion fruit cultivation, considering the low use of inputs, requires low yields to cover production costs, e.g., 3.2 t ha -1 when using tall seedlings with long roots (SILVA et al, 2020), increasing to 5.49 t ha -1 with irrigation, artificial pollination, and deep planting (FRANCISCO et al, 2020), and to 6.90 t ha -1 when using irrigation and a large volume of organic inputs (UCHÔA et al, 2021a). On the other hand, conventional passion fruit cultivation using large volumes of synthetic inputs requires yields above 28.3 t ha -1 to cover production costs (FURLANETO et al, 2011).…”