Yellow passion fruit in overhead trellis system do not differ in diseases intensity and is more productive compared to vertical trellis system

Rodrigo Martins Monzani,Henrique Da Silva Silveira Duarte,Louise Larissa May De Mio

doi:10.1590/0100-29452018579

Rodrigo Martins Monzani, Henrique Da Silva Silveira Duarte + Show 1 more

Open Access

https://doi.org/10.1590/0100-29452018579

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Abstract

Abstract Brazil is the largest producer of passion fruit worldwide, however diseases have been reducing passion fruit productivity, and limiting its cultivation for several years in a row in the same area. The proposal of this study was to evaluate diseases intensity and productivity of yellow passion fruit in vertical and overhead trellis systems, during two seasons, in annual cycle. The experiment was realized in a commercial orchard of yellow passion fruit in the municipality of Araquari, SC, in the 2013/14 and 2014/15 seasons. The treatments were vertical and overhead trellis systems, tested in a randomized complete block design, with eight replications. The agronomic practices were performed according to the culture recommendations and naturally pollinated althoght no disease control was applied. Anthracnose, bacterial blight, cladosporiosis and passion fruit woodiness severities were assessed in two seasons, from December to June, after establishment of the trellis systems. Production of fruits per plant and estimated productivity were determined in both seasons. There were no differences in diseases severity in both systems and seasons. The overhead trellis system was more productive than the vertical trellis system, 78.1% and 57.1% respectively, in the 2013/14 and 2014/15 seasons. Overhead trellis system showed to be the most adequate for yellow passion fruit production.

Highlights

The world production of yellow passion fruit (Passiflora edulis Sims f. flavicarpa Degener) is concentrated in South America, and Brazil is the world’s largest producer
This study aimed to evaluate diseases intensity and productivity of yellow passion fruit vines in vertical and overhead trellis systems, during two seasons, in annual cycle
Field experiments and treatments The experiments were realized in a yellow passion fruit orchard in the municipality of Araquari, SC, with latitude 21o 42’ 49” S, longitude 41o 20’ 33” W and 8 m above sea level. (A2) The climate of the region is classified as Cfa by Köppen, a humid temperate climate characterized by hot summers

Summary

Introduction

The world production of yellow passion fruit (Passiflora edulis Sims f. flavicarpa Degener) is concentrated in South America, and Brazil is the world’s largest producer. In the 2013/14 season, 4 1.5 thousand ha were cultivated with passion fruit, producing around 510 thousand t, and yielding 12.3 t/ha (IBGE, 2016). Brazil has a high potential for passion fruit production, continuous reduction in crop production and in production area has been observed since 2010. This limitation has been attributed to improper management, low usage of improved cultivars and phytosanitary issues (MELETTI, 2011). Leaf diseases of passion fruit are among the main phytosanitary issues. Passiflorae (Pereira) Gonçalves and Rosato, and passion fruit woodiness, the most important disease of the crop, primarily caused by cowpea aphid-borne mosaic virus (CABMV) (CERQUEIRA-SILVA et al, 2014) The most common foliar diseases are anthracnose, caused by the fungus Colletotrichum gloeosporioides Penz., cladosporiosis, caused by the fungus Cladosporium herbarum Link., bacterial blight, caused by the bacterium Xanthomonas axonopodis pv. passiflorae (Pereira) Gonçalves and Rosato, and passion fruit woodiness, the most important disease of the crop, primarily caused by cowpea aphid-borne mosaic virus (CABMV) (CERQUEIRA-SILVA et al, 2014)

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