RT Journal Article
SR Electronic
T1 Rootstock-Scion Interactions Concerning Wine Making. II. Wine Compositional and Sensory Changes Attributed to Rootstock and Fertilizer Level Differences
JF American Journal of Enology and Viticulture
JO Am J Enol Vitic.
FD American Society for Enology and Viticulture
SP 254
OP 265
DO 10.5344/ajev.1968.19.4.254
VO 19
IS 4
A1 C. S. Ough
A1 J. A. Cook
A1 L. A. Lider
YR 1968
UL http://www.ajevonline.org/content/19/4/254.abstract
AB Large and easily detected differences in wine composition and quality were related to rootstock-scion combinations. As indicated by measurable wine quality differences, most of the 10 varieties responded much more favorably to the `St. George' than to the `99-R' rootstock, some did not differ greatly, and several tended to respond more favorably to the 99-R rootstock. The composition effects were increased total nitrogen and decreased amyl alcohols by both the rootstock and fertilizer treatments. Total volatile esters were affected both by year and by root-stock. Total free amino acids, 2,3-butanediols, pH, and extract were greater with the St. George rootstock. Total acid was greater with the 99-R. The treatments did not affect color, tannin, acetaldehyde, isobutyl alcohol, or acetic acid. The residual total nitrogen correlated negatively with the amyl alcohol, and positively with the amino acids and the 2,3-butanediols.