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Impacts of Grapevine Leafroll Disease on Fruit Yield and Grape and Wine Chemistry in a Wine Grape (Vitis vinifera L.) Cultivar.
PLoS One. 2016; 11(2):e0149666.Plos

Abstract

Grapevine leafroll disease (GLD) is an economically important virus disease affecting wine grapes (Vitis vinifera L.), but little is known about its effect on wine chemistry and sensory composition of wines. In this study, impacts of GLD on fruit yield, berry quality and wine chemistry and sensory features were investigated in a red wine grape cultivar planted in a commercial vineyard. Own-rooted Merlot vines showing GLD symptoms and tested positive for Grapevine leafroll-associated virus 3 and adjacent non-symptomatic vines that tested negative for the virus were compared during three consecutive seasons. Number and total weight of clusters per vine were significantly less in symptomatic relative to non-symptomatic vines. In contrast to previous studies, a time-course analysis of juice from grapes harvested at different stages of berry development from symptomatic and non-symptomatic vines indicated more prominent negative impacts of GLD on total soluble solids (TSS) and berry skin anthocyanins than in juice pH and titratable acidity. Differences in TSS between grapes of symptomatic and non-symptomatic vines were more pronounced after the onset of véraison, with significantly lower concentrations of TSS in grapes from symptomatic vines throughout berry ripening until harvest. Wines made from grapes of GLD-affected vines had significantly lower alcohol, polymeric pigments, and anthocyanins compared to corresponding wines from grapes of non-symptomatic vines. Sensory descriptive analysis of 2010 wines indicated significant differences in color, aroma and astringency between wines made from grapes harvested from GLD-affected and unaffected vines. The impacts of GLD on yield and fruit and wine quality traits were variable between the seasons, with greater impacts observed during a cooler season, suggesting the influence of host plant × environment interactions on overall impacts of the disease.

Authors+Show Affiliations

Department of Plant Pathology, Washington State University, Irrigated Agriculture Research and Extension Center, Prosser, Washington, United States of America.Viticulture and Enology Program, Washington State University, Wine Science Center, 2710 Crimson Way, Richland, Washington, United States of America.Department of Plant Pathology, Washington State University, Irrigated Agriculture Research and Extension Center, Prosser, Washington, United States of America.Viticulture and Enology Program, Washington State University, Wine Science Center, 2710 Crimson Way, Richland, Washington, United States of America.Viticulture and Enology Program, Washington State University, Wine Science Center, 2710 Crimson Way, Richland, Washington, United States of America.Viticulture and Enology Program, Washington State University, Wine Science Center, 2710 Crimson Way, Richland, Washington, United States of America.Department of Plant Pathology, Washington State University, Irrigated Agriculture Research and Extension Center, Prosser, Washington, United States of America.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

26919614

Citation

Alabi, Olufemi J., et al. "Impacts of Grapevine Leafroll Disease On Fruit Yield and Grape and Wine Chemistry in a Wine Grape (Vitis Vinifera L.) Cultivar." PloS One, vol. 11, no. 2, 2016, pp. e0149666.
Alabi OJ, Casassa LF, Gutha LR, et al. Impacts of Grapevine Leafroll Disease on Fruit Yield and Grape and Wine Chemistry in a Wine Grape (Vitis vinifera L.) Cultivar. PLoS One. 2016;11(2):e0149666.
Alabi, O. J., Casassa, L. F., Gutha, L. R., Larsen, R. C., Henick-Kling, T., Harbertson, J. F., & Naidu, R. A. (2016). Impacts of Grapevine Leafroll Disease on Fruit Yield and Grape and Wine Chemistry in a Wine Grape (Vitis vinifera L.) Cultivar. PloS One, 11(2), e0149666. https://doi.org/10.1371/journal.pone.0149666
Alabi OJ, et al. Impacts of Grapevine Leafroll Disease On Fruit Yield and Grape and Wine Chemistry in a Wine Grape (Vitis Vinifera L.) Cultivar. PLoS One. 2016;11(2):e0149666. PubMed PMID: 26919614.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Impacts of Grapevine Leafroll Disease on Fruit Yield and Grape and Wine Chemistry in a Wine Grape (Vitis vinifera L.) Cultivar. AU - Alabi,Olufemi J, AU - Casassa,L Federico, AU - Gutha,Linga R, AU - Larsen,Richard C, AU - Henick-Kling,Thomas, AU - Harbertson,James F, AU - Naidu,Rayapati A, Y1 - 2016/02/26/ PY - 2016/01/09/received PY - 2016/01/17/accepted PY - 2016/2/27/entrez PY - 2016/2/27/pubmed PY - 2016/7/28/medline SP - e0149666 EP - e0149666 JF - PloS one JO - PLoS One VL - 11 IS - 2 N2 - Grapevine leafroll disease (GLD) is an economically important virus disease affecting wine grapes (Vitis vinifera L.), but little is known about its effect on wine chemistry and sensory composition of wines. In this study, impacts of GLD on fruit yield, berry quality and wine chemistry and sensory features were investigated in a red wine grape cultivar planted in a commercial vineyard. Own-rooted Merlot vines showing GLD symptoms and tested positive for Grapevine leafroll-associated virus 3 and adjacent non-symptomatic vines that tested negative for the virus were compared during three consecutive seasons. Number and total weight of clusters per vine were significantly less in symptomatic relative to non-symptomatic vines. In contrast to previous studies, a time-course analysis of juice from grapes harvested at different stages of berry development from symptomatic and non-symptomatic vines indicated more prominent negative impacts of GLD on total soluble solids (TSS) and berry skin anthocyanins than in juice pH and titratable acidity. Differences in TSS between grapes of symptomatic and non-symptomatic vines were more pronounced after the onset of véraison, with significantly lower concentrations of TSS in grapes from symptomatic vines throughout berry ripening until harvest. Wines made from grapes of GLD-affected vines had significantly lower alcohol, polymeric pigments, and anthocyanins compared to corresponding wines from grapes of non-symptomatic vines. Sensory descriptive analysis of 2010 wines indicated significant differences in color, aroma and astringency between wines made from grapes harvested from GLD-affected and unaffected vines. The impacts of GLD on yield and fruit and wine quality traits were variable between the seasons, with greater impacts observed during a cooler season, suggesting the influence of host plant × environment interactions on overall impacts of the disease. SN - 1932-6203 UR - https://www.unboundmedicine.com/medline/citation/26919614/Impacts_of_Grapevine_Leafroll_Disease_on_Fruit_Yield_and_Grape_and_Wine_Chemistry_in_a_Wine_Grape__Vitis_vinifera_L___Cultivar_ L2 - https://dx.plos.org/10.1371/journal.pone.0149666 DB - PRIME DP - Unbound Medicine ER -