%0 Journal Article %A H. P. Olmo %T Methods Used in Grape Variety Development and Improvement %D 1955 %R 10.5344/ajev.1955.6.1.20 %J American Journal of Enology and Viticulture %P 20-22 %V 6 %N 1 %U https://www.ajevonline.org/content/ajev/6/1/20.full.pdf