Translator Disclaimer
29 March 2018 Effects of calcium carbonate application on physiology, yield and quality of field-grown tomatoes in a semi-arid Mediterranean climate
Cristina Patanè, Alessandra Pellegrino, Isabella Di Silvestro
Author Affiliations +
Abstract

Foliar and fruit application of mineral particle films is considered to reduce damage from heat and water stress significantly in many horticultural crops. Sprays with new formulations consisting of suspensions of calcium carbonate can have beneficial effects on vegetable crops, including tomato. We assessed the effects of a calcium carbonate suspension on physiology, yield and some quality aspects of a tomato crop under three levels of deficit irrigation (I50, moderate; I25, moderate–severe; I0, severe) in the semi-arid climate of eastern Sicily. Leaf transpiration was significantly reduced by 47% (late June) and 58% (early July) in plants treated with the suspension. Late in the growing season, sprayed leaves were ∼1°C cooler than unsprayed (control) leaves. Spray treatment resulted in a higher marketable yield (+12%) than the control under I50, and fruit quality was significantly improved under I0. Treated tomatoes exhibited better firmness (+24%), higher contents of vitamin C (+15%) and total phenols (+12%), and higher antioxidant activity (5–7%) than untreated tomatoes. Application of calcium carbonate minimised fruit losses under I50 while ensuring great water saving and improving the nutraceutical properties of fruits. These aspects make the technology an environmentally friendly tool to improve crop sustainability and nutritional quality in tomato.

© CSIRO 2018
Cristina Patanè, Alessandra Pellegrino, and Isabella Di Silvestro "Effects of calcium carbonate application on physiology, yield and quality of field-grown tomatoes in a semi-arid Mediterranean climate," Crop and Pasture Science 69(4), 411-418, (29 March 2018). https://doi.org/10.1071/CP17424
Received: 15 November 2017; Accepted: 22 January 2018; Published: 29 March 2018
JOURNAL ARTICLE
8 PAGES


Share
SHARE
KEYWORDS
CaCO3
fruit yield
Solanum lycopersicum
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top