Agricultural ambience and salt stress in production of yellow passion fruit seedlings

The objective was to evaluate the initial growth and gas exchange of yellow passion fruit seedlings irrigated with saline water under different environments. experiment conducted University International Integration Afro-Brazilian Lusophony, Redenção-CE. experimental design used entirely randomized, in factor arrangement 4 x 2, referring four environments shade screens (black screen; whitescreen; red all 50% shading; full sun) values electrical conductivity irrigationwater (0.3 3.0 dS m-1), five repetitions. following variables were evaluated: number leaves, plant height, leaf area, photosynthesis, transpiration, stomach conductance, instantaneous use efficiency, saturation extract soil pH. environment black screen provides greater performance height root length more efficient for production dry mass aerial part both irrigation waters. stimulates conductance chlorophyll low salinity water, while mitigated stress these variables. sun provided efficiency treatment high water.