Journal article

Authors list: Wohlfahrt, Y; Tittmann, S; Schmidt, D; Rauhut, D; Honermeier, B; Stoll, M

Publication year: 2020

Pages: 2486-

Journal: Applied Sciences

Volume number: 10

Issue number: 7

Open access status: Gold

DOI Link: https://doi.org/10.3390/app10072486

Publisher: MDPI

Abstract: 
Carbon dioxide (CO2) as one of the main factors driving climate change is known to increase grapevine growth and yield and could, therefore, have an impact on the fruit quality of vines. This study reports the effects of elevated CO2 (eCO(2)) on berry development and bunch structure of two grapevine cultivars (Vitis vinifera L. cvs. Riesling and Cabernet Sauvignon) within the VineyardFACE (Free-Air Carbon Dioxide enrichment) experiment, using must analysis and non-invasive fluorescence sensor technology. Berry development was examined on five dates over three consecutive years by analyzing total soluble solids (TSS), pH, total acidity, organic acids, nutrition status, and non-invasive Multiplex measurements. Before harvest, secondary bunches were collected to examine bunch and berry parameters. Results showed that eCO(2) had little impact on berry composition of Riesling and Cabernet Sauvignon during berry development, which could be related to bunch structure or single berry weight within single seasons. Elevated CO2 (eCO(2)) did not result in modified TSS accumulation during ripening but was directly related to the chlorophyll index SFR_R. Higher single berry weights (SBW), higher malic acid (MA), and lower tartaric acid (TAA) were examined at some stages during development of berries under eCO(2) levels. Our study provides evidence that eCO(2) did alter some bunch and berry parameters without a negative impact on fruit quality.

Harvard Citation style: Wohlfahrt, Y., Tittmann, S., Schmidt, D., Rauhut, D., Honermeier, B. and Stoll, M. (2020) The Effect of Elevated CO2 on Berry Development and Bunch Structure of Vitis vinifera L. cvs. Riesling and Cabernet Sauvignon, Applied Sciences, 10(7), p. 2486. https://doi.org/10.3390/app10072486

APA Citation style: Wohlfahrt, Y., Tittmann, S., Schmidt, D., Rauhut, D., Honermeier, B., & Stoll, M. (2020). The Effect of Elevated CO2 on Berry Development and Bunch Structure of Vitis vinifera L. cvs. Riesling and Cabernet Sauvignon. Applied Sciences. 10(7), 2486. https://doi.org/10.3390/app10072486