Silicon Application to Soil Increases the Yield and Quality of Table Grapes (Vitis vinifera L.) Grown in a Semiarid Climate of Brazil

Nascimento, Clístenes Williams Araújo do; Silva, Fernando Bruno Vieira da; Lima, Luiz Henrique Vieira; Silva, Josévaldo Ribeiro; Veloso, Venâncio de Lima; Silva, Franklone Lima da; Freitas, Sérgio Tonetto de; Santos, Luana Ferreira dos; Santos, Monaliza Alves dos

doi:10.1007/s12633-022-02129-0

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“…Several examples of studies considered the application of Si in viticulture, showing its usefulness [ 11 , 12 , 13 , 14 , 15 ]. The tolerance against abiotic and biotic stress in plants of Vitis vinifera L. cv.…”

Section: Introductionmentioning

confidence: 99%

“…The literature indicates that Si can influence the plant nutrient uptake and plant secondary metabolites [ 1 , 21 ]. Up to now, studies related to Si application in Vitis vinifera have mainly considered plants subjected to biotic or abiotic stress such in the semiarid climate in Brazil [ 14 ], in the presence of botrytis infection [ 12 ], or grapes grown in calcareous grey desert soil [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

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Foliar Application of Silicon in Vitis vinifera: Targeted Metabolomics Analysis as a Tool to Investigate the Chemical Variations in Berries of Four Grapevine Cultivars

Sut

Malagoli

Dall’Acqua

2022

Plants

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Silicon (Si) is a beneficial element for the growth of various crops, but its effect on plant metabolism is still not completely elucidated. Even if Si is not classified as an essential element for plants, the literature has reported its beneficial effects in a variety of species. In this work, the influence of Si foliar application on berry composition was evaluated on four grapevine cultivars. The berries of Teroldego and Oseleta (red grapes) and Garganega and Chardonnay (white grapes) were analyzed after foliar application of silicon by comparing the treated and control groups. A targeted metabolomic approach was used that focused on secondary metabolites, amino acids, sugars, and tartaric acid. Measurements were performed using liquid chromatography coupled with a diode array detector and mass spectrometry (LC-DAD-MSn), a LC-evaporative light scattering detector (ELDS), and LC-MS/MS methods specific for the analysis of each class of constituents. After the data collection, multivariate models, PCA, PLS-DA, OPLS-DA, were elaborated to evaluate the effect of Si application in the treated vs. control samples. Results were different for each grape cultivar. A significant increase in anthocyanins was observed in the Oseleta cultivar, with 0.48 mg g−1 FW in the untreated samples vs. 1.25 mg g−1 FW in the Si-treated samples. In Garganega, Si treatment was correlated with increased proline levels. In Chardonnay, the Si application was related to decreased tartaric acid. The results of this work show for the first time that Si induces cultivar specific changes in the berry composition in plants cultivated without an evident abiotic or biotic stress.

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