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- Title
Gas exchange and photosynthetic pigments of West Indian cherry under salinity stress and salicylic acid.
- Authors
Vieira Dantas, Maíla; Soares de Lima, Geovani; Gheyi, Hans Raj; Rodrigues da Silva, André Alisson; Soares de Melo, Alberto; Cristina de Medeiros, Luana
- Abstract
West Indian cherry is a fruit species that stands out due to its socioeconomic importance, considering its use in the food and pharmaceutical industries. In this context, this study aimed to evaluate the gas exchange and photosynthetic pigments in the West Indian cherry cv. BRS 366 Jaburu as a function of irrigation with saline water and concentrations of salicylic acid. The study was conducted in a protected environment consisting of a greenhouse in Campina Grande, PB. The statistical design was in randomized blocks in a 5 x 4 factorial arrangement and treatments consisted of five levels of electrical conductivity of the irrigation water - ECw (0.8, 1.6, 2.4, 3.2, and 4.0 dS m-1) and four concentrations of salicylic acid - SA (0, 1.0, 2.0, and 4.0 mM), with three replicates. Water salinity from 0.8 dS m-1 reduced transpiration, the CO2 assimilation rate, and the instantaneous water-use efficiency of West Indian cherry plants. Salicylic acid did not mitigate the deleterious effects of salinity stress on the gas exchange and chlorophyll a of plants grown with water salinity levels higher than 0.8 dS m-1. The salicylic acid concentration of 4.0 mM promoted an increase in the total chlorophyll content of West Indian cherry plants.
- Subjects
SALICYLIC acid; PHOTOSYNTHETIC pigments; GAS exchange in plants; WATER efficiency; CHERRIES; IRRIGATION water
- Publication
Comunicata Scientiae, 2021, Vol 12, p1
- ISSN
2176-9079
- Publication type
Article
- DOI
10.14295/CS.v12.3664