CALCIUM AS SALINITY MITIGATOR ON THE PRODUCTION COMPONENTS OF PASSION FRUIT CULTIVATED IN PROTECTED PITS1

Author:

BEZERRA MARLENE ALEXANDRINA FERREIRA1ORCID,CAVALCANTE LOURIVAL FERREIRA1ORCID,BEZERRA FRANCISCO THIAGO COELHO1ORCID,PEREIRA WALTER ESFRAIN1ORCID,NASCIMENTO NETO EXPEDITO CAVALCANTE DO2ORCID

Affiliation:

1. Universidade Federal da Paraíba, Brazil

2. Universidade Federal de Viçosa, Brazil

Abstract

ABSTRACT 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.

Publisher

FapUNIFESP (SciELO)

Subject

General Agricultural and Biological Sciences

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1. Growth of wild passion fruit (Passiflora foetida L.) rootstock under irrigation water salinity;Revista Brasileira de Engenharia Agrícola e Ambiental;2023-02

2. Effect of saline water and shading on dragon fruit (‘pitaya’) seedling growth;Revista Brasileira de Engenharia Agrícola e Ambiental;2021-08

3. Calcium in the mineral nutrition of yellow passion fruit cultivated in lined pits and with saline water;Revista Brasileira de Engenharia Agrícola e Ambiental;2021-04

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