RT Journal Article
SR Electronic
T1 A Study of the Variability of `Thompson Seedsess' Berries for Soluble Solids and Weight
JF American Journal of Enology and Viticulture
JO Am J Enol Vitic.
FD American Society for Enology and Viticulture
SP 37
OP 42
DO 10.5344/ajev.1975.26.1.37
VO 26
IS 1
A1 A. N. Kasimatis
A1 Edward P. Vilas, Jr.
A1 Frederick H. Swanson
A1 Paul P. Baranek
YR 1975
UL http://www.ajevonline.org/content/26/1/37.abstract
AB Twenty-kilogram samples of `Thompson Seedless' grapes were harvested on two dates from each of 7 vineyards in Fresno, Madera, and Yolo counties. Three hundred berries were clipped from each sample, ⅓ from the shoulder region of the clusters, ⅓ from the central region, and ⅓ from the tip. Each berry was weighed, after which °Brix was determined. Standard deviations and correlation coefficients were determined for °Brix, berry weight, and soluble solids weight per berry (calculated). Frequency distribution was analyzed by the chisquare test. Berry weight and soluble-solids weight per berry had normal distributions, whereas °Brix values usually did not. Berries from the tip region were lighter and of lower °Brix than berries from the other cluster regions. The regressions for °Brix and berry weight, regardless of vineyard location or cluster region, were curvilinear and of low order (R = 0.10 to 0.52).