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- Title
Fruit quality of sweet pepper as affected by foliar Ca applications to mitigate the supply of saline water under a climate change scenario.
- Authors
Piñero, María Carmen; Pérez‐Jiménez, Margarita; López‐Marín, Josefa; del Amor, Francisco M.
- Abstract
Abstract: BACKGROUND: Sweet pepper fruit quality disorders have been related mainly to an unbalanced nutrient supply and non‐optimal growth conditions. Increases in the atmospheric CO2 concentration ([CO2]) have been associated with a reduction of transpiration, which can affect calcium (Ca) uptake as it is linked closely to water uptake. We investigated whether foliar application of Ca can counterbalance the effects of saline water and elevated [CO2]. RESULTS: High CO2 favoured generative growth instead of vegetative growth. Foliar Ca supply did not affect the marketable yield, but reduced the total yield when combined with salinity and 400 µmol mol−1 CO2. Salinity affected negatively the total yield but this was overcome when CO2 was applied. The B and K concentrations were reduced by foliar Ca application, while Ca and Mn were increased at 400 µmol mol−1 CO2. Salinity increased the Mn, Cl, and Na concentrations, regardless of the [CO2], and decreased K at 800 µmol mol−1 CO2. The total protein was affected negatively only by elevated [CO2], and the total free amino acid concentration was reduced by all treatments. CONCLUSION: The effect of Ca application differed according to the other treatments applied. This procedure should be optimised to overcome future climate impacts on fruit quality. © 2017 Society of Chemical Industry
- Subjects
FRUIT quality; SWEET peppers; SALINE waters; AMINO acids; CALCIUM; ATMOSPHERIC carbon dioxide; FOLIAR feeding
- Publication
Journal of the Science of Food & Agriculture, 2018, Vol 98, Issue 3, p1071
- ISSN
0022-5142
- Publication type
Article
- DOI
10.1002/jsfa.8557