SciELO - Scientific Electronic Library Online

 
vol.33 issue2PRODUCTION CHARACTERISTICS OF SESAME GENOTYPES UNDER DIFFERENT STRATEGIES OF SALINE WATER APPLICATIONCALCIUM SILICATE AS SALT STRESS ATTENUATOR IN SEEDLINGS OF YELLOW PASSION FRUIT cv. BRS GA1 author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Revista Caatinga

Print version ISSN 0100-316XOn-line version ISSN 1983-2125

Abstract

BEZERRA, MARLENE ALEXANDRINA FERREIRA et al. CALCIUM AS SALINITY MITIGATOR ON THE PRODUCTION COMPONENTS OF PASSION FRUIT CULTIVATED IN PROTECTED PITS1. Rev. Caatinga [online]. 2020, vol.33, n.2, pp.500-508.  Epub June 22, 2020. ISSN 1983-2125.  https://doi.org/10.1590/1983-21252020v33n222rc.

The high rate of evaporation and the limitation of water, in quantity and quality, require the search for strategies that enable the sustainability of agriculture in the world. The experiment was carried out to evaluate the effects of water salinity, lateral protection of the pits and calcium doses on the production components of passion fruit cv. BRS GA1. The treatments were arranged in a 2 x (2 x 5) split plot, corresponding to water salinity (0.3 and 4.0 dS m-1) in the main plot, and combinations between lateral protection of the pits (without and with) and calcium doses (0, 30, 60, 90 and 120 kg ha-1) in the subplots. Number of productive branches, indices of early ripening and concentrated cropping, calculated from the weekly yields, number of fruits per plant, average fruit weight and yield were evaluated. The increase in electrical conductivity of irrigation water delays harvest and reduces the number of fruits per plant, fruit weight and yield of passion fruit. The lateral protection of the pits did not have a positive effect on the cultivation of passion fruit irrigated with saline water. Calcium dose of 60 kg ha-1 in the Entisol with low content of this macronutrient attenuates the effects of irrigation with saline water, increasing the yield of yellow passion fruit.

Keywords : Passiflora edulis; Salt stress; Calcium nitrate.

        · abstract in Portuguese     · text in English     · English ( pdf )