Morphophysiology and nutrition of yellow passion fruit seedlings grown in substrates based on carnaúba palm bagana

A.M Mendonça,G.G Sousa,W Natale,F.B Silva Junior

doi:10.5039/agraria.v16i3a132

Abstract

The use of agro-industrial waste may represent an alternative to reduce the costs of purchasing commercial substrates by producers of passion fruit seedlings, and carnaúba palm bagana is an alternative for the Northeastern Brazilian region. In this context, the objective was to evaluate the production of yellow passion fruit seedlings in substrates based on carnaúba bagana in different proportions with soil. The experiment was conducted in the experimental area of the Agrometeorological Station of Fortaleza, Pici Campus, Federal University of Ceará, Brazil, in a completely randomized design, whose treatments consisted of substrates formulated from the combination of different proportions of carnaúba bagana (CB) and soil: Soil (100%) + CB (0%); Soil (75%) + CB (25%); Soil (50%) + CB (50%); Soil (25%) + CB (75%); and Soil (0%) + CB (100%). The presence of CB, regardless of its proportion in the substrate, leads to the best results in photosynthesis and Dickson quality index (DQI) in yellow passion fruit seedlings. The best morphological responses were obtained with CB proportions greater than 50%, which also led to greater accumulation of nutrients in the shoots.

Highlights

Brazil is one of the world’s largest fruit producers, due to its soil and climate characteristics for the development of fruit growing (Natale et al, 2012)
The experiment was conducted in the experimental area of the Agrometeorological Station of Fortaleza, Pici Campus, Federal University of Ceará, Brazil, in a completely randomized design, whose treatments consisted of substrates formulated from the combination of different proportions of carnaúba bagana (CB) and soil: Soil (100%) + CB (0%); Soil (75%) + CB (25%); Soil (50%) + CB (50%); Soil (25%) + CB (75%); and Soil (0%) + CB (100%)
The best morphological responses were obtained with CB proportions greater than 50%, which led to greater accumulation of nutrients in the shoots

Summary

Introduction

Brazil is one of the world’s largest fruit producers, due to its soil and climate characteristics for the development of fruit growing (Natale et al, 2012). Flavicarpa) is gaining increasing prominence in the national scene, as this fruit crop has become increasingly cultivated for being a source of income for small and medium farmers, due to the demand of agroindustry for the production of juices, food and cosmetics, in addition to providing rapid economic return to producers (Junghans & Jesus, 2017). Seedling production is one of the aspects that must be taken into account and that can influence the production potential of the orchard and, the obtaining of quality fruits. At this stage, it is important to investigate the substrates used, regarding the physicochemical properties and supply of nutrients (Natale et al, 2018)

Objectives

Methods

Results