RT Journal Article
SR Electronic
T1 Comparison between Responsiveness of Selected Grape Clones to Gibberellin Applications and Their Endogenous Levels in Breaking Buds and Maturing Berries
JF American Journal of Enology and Viticulture
JO Am J Enol Vitic.
FD American Society for Enology and Viticulture
SP 309
OP 312
DO 10.5344/ajev.1980.31.3.309
VO 31
IS 3
A1 Kenichi Hagiwara
A1 Kay Ryugo
A1 Harold P. Olmo
YR 1980
UL http://www.ajevonline.org/content/31/3/309.abstract
AB Rapidly growing shoot apices and flower clusters just past full bloom were treated with 40 ppm of gibberellic acid (GA) on Seeded Thompson and several seedless grape clones. Berries on some seedless selections were slightly stimulated to grow in comparison to the untreated control fruit while other hybrids responded to a large degree. These growth responses to GA were compared to the endogenous levels of free and bound gibberellins in the breaking buds, the elongating terminals beyond the treated zones, and maturing berries. No correlation was observed between the levels of these growth regulating substances and the responsiveness of the berries and shoots.