| Title: | Effects of fertigation by elicitors enriched in amino acids from vegetal and animal origins on Syrah plant gas exchange and grape quality |
| Author(s): | Roda R; Martin L; Mislata AM; Castano FJ; Puxeu M; Ferrer-Gallego R; |
| Address: | "Wine Technology Centre (VITEC), Ctra. de Porrera km 1, 43730, Falset, Tarragona, Spain. Wine Technology Centre (VITEC), Ctra. de Porrera km 1, 43730, Falset, Tarragona, Spain; Sensometria Instrumental (i-Sens), Department of Analytical Chemistry and Organic Chemistry, Universitat Rovira i Virgili, Tarragona 43007, Spain. Wine Technology Centre (VITEC), Ctra. de Porrera km 1, 43730, Falset, Tarragona, Spain. Electronic address: raul.ferrer@vitec.wine" |
| DOI: | 10.1016/j.foodres.2019.108630 |
| ISSN/ISBN: | 1873-7145 (Electronic) 0963-9969 (Linking) |
| 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" |
| Keywords: | Agriculture/*methods Amino Acids/*administration & dosage/analysis Animals Carbon Dioxide/metabolism *Fertilizers Fruit/chemistry/growth & development Nitrogen/metabolism Odorants/analysis Plant Leaves/chemistry/metabolism Spain Vitis/*growth & developmen; |
| Notes: | "MedlineRoda, Rafael Martin, Laura Mislata, Ana Maria Castano, Francisco Javier Puxeu, Miquel Ferrer-Gallego, Raul eng Research Support, Non-U.S. Gov't Canada 2019/09/27 Food Res Int. 2019 Nov; 125:108630. doi: 10.1016/j.foodres.2019.108630. Epub 2019 Aug 19" |
