@article {Petrucci40, author = {Vincent E. Petrucci and Robert Siegfried}, title = {The Extraneous Matter in Mechanically Harvested Wine Grapes}, volume = {27}, number = {1}, pages = {40--41}, year = {1976}, doi = {10.5344/ajev.1976.27.1.40}, publisher = {American Journal of Enology and Viticulture}, abstract = {The cultivars {\textquoteleft}Ruby Cabernet{\textquoteright} and {\textquoteleft}Emerald Riesling{\textquoteright} were mechanically harvested and analyzed for material other than grape (MOG) content. MOG content and leaf content as a portion of total MOG varied with ease of harvesting. Variation in MOG content increased with increasing difficulty of harvesting. {\textquoteleft}Emerald Riesling{\textquoteright} harvested comparatively easily and had a low MOG content and a small variation in MOG content between samples. {\textquoteleft}Ruby Cabernet{\textquoteright} had a higher MOG content and a greater variation in MOG content between samples. With both cultivars, about half of total MOG was small leaf fragments.}, issn = {0002-9254}, URL = {https://www.ajevonline.org/content/27/1/40}, eprint = {https://www.ajevonline.org/content/27/1/40.full.pdf}, journal = {American Journal of Enology and Viticulture} }