Effects of fertigation by elicitors enriched in amino acids from vegetal and animal origins on Syrah plant gas exchange and grape quality. (November 2019)

• Record Type: Journal Article
• Authors: Roda, Rafael; Martín, Laura; Mislata, Ana María; Castaño, Francisco Javier; Puxeu, Miquel; Ferrer-Gallego, Raúl
• Is Part Of: Food research international. Volume 125(2019)
• Publication Date: 2019-11
• Subjects: Elicitors -- Grapes -- Plant nutrition -- Sustainability -- Volatile compounds -- Vineyard -- Viticulture; Food -- Analysis -- Periodicals; Food industry and trade -- Periodicals; Food industry and trade -- Canada -- Periodicals; Food Technology -- Periodicals; Food -- Periodicals; Food-Processing Industry -- Periodicals; Aliments -- Industrie et commerce -- Périodiques; Aliments -- Industrie et commerce -- Canada -- Périodiques; Aliments -- Recherche -- Périodiques; Food industry and trade; Canada; Periodicals; Electronic journals; 664.005
• DOI: 10.1016/j.foodres.2019.108630
• Languages: English
• ISSNs: 0963-9969

Abstract

Abstract: Nutrition management of vines is a key factor that regulates production and determines grape quality. Currently, one of the main objectives of fertilization is to apply eco-friendly and balanced nutrition. In this case, fertigation is the most efficient strategy. The objective of this work was to assess the effect of innovative fertilizers on Syrah grapevines. The tested products contained an elicitor, macro- and microelements and amino acids from animal and vegetal origins. Fertilizers were applied by fertigation under field conditions in 2016, 2017 and 2018. The influence of the treatments on the grapevine gas exchange, element assimilation and oenological composition of must was evaluated. Additionally, the amino acid contents and volatile composition were determined. The results suggest that application of fertigation does not directly influence the water status of Syrah vines under the conditions of the study but can improve the gas exchange balance and N assimilation. Moreover, the leaf assimilation of Zn, Ca and, to a lesser extent, B were improved at the bloom stage, and the assimilation of Mn was improved at veraison. Small changes were observed in the basic parameters of musts, and an increase in yeast assimilable nitrogen was detected in treated vines. The aromatic profile of grape musts was enhanced in treated vines, and the elicitors enriched in vegetal amino acids could be a sustainable alternative for improving certain vegetative and grape quality parameters of Syrah. Graphical abstract: Unlabelled Image Highlights: The climatic conditions influences the effect of the elicitor's addition. Elicitor's may improve the aminoacids and the aroma content of Syrah grapes. Vegetal amino acids as appropriate and sustainable alternative in vines.