Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Evaluation of the Water Consumption and the Productive Pa-Rameters on a Table Grapevine Cultivar Grafted onto Two Root-Stocks, in the Climate Change Context

Version 1 : Received: 2 October 2023 / Approved: 2 October 2023 / Online: 2 October 2023 (16:49:24 CEST)

A peer-reviewed article of this Preprint also exists.

Dattola, A.; Vonella, V.; Olivadese, T.; Pullia, F.M.; Zappia, R.; Gullo, G. The Evaluation of the Water Consumption and the Productive Parameters of a Table Grapevine, Cardinal Cultivar, Grafted onto Two Rootstocks. Agriculture 2023, 13, 2101. Dattola, A.; Vonella, V.; Olivadese, T.; Pullia, F.M.; Zappia, R.; Gullo, G. The Evaluation of the Water Consumption and the Productive Parameters of a Table Grapevine, Cardinal Cultivar, Grafted onto Two Rootstocks. Agriculture 2023, 13, 2101.

Abstract

Material and methods. The trial was carried out over two years in Southern Italy. Two grapevine rootstocks, 110R and SO4, were compared to evaluate the water extraction ability from the soil and the effect on the yield and quality of the Cardinal grapevine table cultivar. Therefore, a new approach to plant water consumption based on sap flow was adopted. Results. The earlier and faster water refilling of the xylem in Cardinal onto 110R (C/110R) appears responsible for the earlier evolution of the phenological phases than Cardinal onto SO4 (C/SO4). The maximum length of the principal shoot was reached in Cardinal/110R compared to C/SO4, while a higher number of lateral shoots with lower internode has changed canopy architecture and light distribution in C/SO4. The 110R used more water compared to SO4; it was possible to quantify the real transpired flux of the plant per day: sap flow was 12.3 L.plant-1.d-1 and 11.7 L.plant-1d-1 in C/110R in the first and second year, respectively, while it was 14% lower in alternative graft combination. Conclusions. However, C/SO4 was able to sustain leaf water status and physiological mecha-nisms, although with lesser performance than C/110R, but that did not cause negative effects on production parameters.

Keywords

drought, phenology, quality, sap flow, viticulture

Subject

Biology and Life Sciences, Agricultural Science and Agronomy

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