Berry morphology and composition in irrigated and non-irrigated grapevine (Vitis vinifera L.)

Journal of Plant Physiology
Adriano SofoAntonio Scopa

Abstract

The present study was carried out in a 5-year-old vineyard (Vitis vinifera L., cv. Aglianico) located in Southern Italy. Half of the plants (IRR) were fully irrigated, whereas the other half were not irrigated (NIRR). In both of the treatments, plant water status, gas exchange, photosynthetic efficiency and productive performance were determined. The arid conditions resulted in significant decreases in stem water potential in NIRR (minimum values of -1.34 and -1.52 MPa in IRR and NIRR, respectively). The values of yield per plant, cluster weight and total berry weight were significantly higher in IRR. Grape berries were separated into four weight classes, and morphometric and microscopic analyses were carried out to measure and calculate berry skin characteristics. Irrigation determined a marked shift toward heavier (+23% in the class ≥ 1.25 g) and bigger (336.35 mm³ vs 299.15 mm³) berries, and induced significant changes in other morphometric berry parameters. No differences among berry weight classes and irrigation treatments were observed for berry skin thickness. In all of the berry weight classes, total anthocyanins extracted from berry skins were significantly higher in NIRR than in IRR (12301.53 and 9585.52 mg kg⁻¹ fresh...Continue Reading

Citations

Oct 21, 2017·International Journal of Phytoremediation·Hidelblandi Farias de MeloMaurizio Mulas
Oct 15, 2020·Journal of Mountain Science·Augusto ZanellaHerbert Hager
Sep 14, 2021·ACS Omega·Jasmina Obhod AšChristina Streli

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