Response of yellow passion fruit to salinity water irrigation under differents planting type

Abstract

In order to evaluate the effects of salinity water irrigation at levels of 0.5; 1.5 and 2.5 dS m^-1 under different planting types on growth and production of yellow passion fruit plants, Passiflora edulis f. flavicarpa Deg., was carried out during the period of May 2001 to March 2002 an experiment in Remígio County Paraíba State, Brazil. The planting types were: a) conventional planting; b) planting in caves with covering of lateral sides with polyethylene film; c) planting in polyethylene bags with 60 cm of height and 40 cm of diameter. The plants presents the stem diameter and production more inhibited by planting types in relation to increment of salinity water irrigation. The planting type than more inhibited the growth and plants production and increased the soil salinity was in polyethylene bags. The soil water content and electrical conductivity values increased as function of the loss hydric reduction of the reduction soil in sequence: planting in polyethylene bags > planting in caves with polyethylene film in lateral sides > planting in traditional form.

Key words:
Passiflora edulis; irrigation; saline water; planting system