TY - JOUR T1 - Effect of Leaf Content and Mechanical Harvest on Wine "Quality" JF - American Journal of Enology and Viticulture JO - Am J Enol Vitic. SP - 158 LP - 163 DO - 10.5344/ajev.1975.26.3.158 VL - 26 IS - 3 AU - A. C. Noble AU - C. S. Ough AU - A. N. Kasimatis Y1 - 1975/01/01 UR - http://www.ajevonline.org/content/26/3/158.abstract N2 - No overall adverse effect on wine quality was produced by mechanically harvesting grapes or adding shredded grape leaves. In all cases, however, white wines made from damaged or machine-harvested grapes, or from grapes to which leaves had been added, were significantly darker by visual assessment as well as by absorbance at 420 nm. The phenolic content of wines increased with the addition of leaves or with berry damage. ER -