Articles
GIBBERELLIC ACID INDUCED FLOWERING OF CONTAINERIZED CENTAUREA MONTANA L.
Article number
205_34
Pages
233 – 236
Language
Abstract
The effect of gibberellic acid-3 (GA) spray applications on flowering of Centaurea montana L. was studied to determine if GA could substitute for long-day promotion of stem elongation and flowering.
Sprays of 25 or 100 μg GA/ml were applied 3 (monthly), 5 (biweekly) or 9 (weekly) times between 7 February and 4 April 1985. No stem elongation or flowering occurred when plants were untreated.
Both rates of GA, at all application intervals, promoted stem elongation and flowering.
Flowering was most rapid with 5 or 9 applications of 100 μg GA/ml.
Nine applications of either GA rate and 5 applications of 100 μg GA/ml caused undesirable changes in leaf morphology and stem weakness; these effects were absent in other treatments.
Sprays of 25 or 100 μg GA/ml were applied 3 (monthly), 5 (biweekly) or 9 (weekly) times between 7 February and 4 April 1985. No stem elongation or flowering occurred when plants were untreated.
Both rates of GA, at all application intervals, promoted stem elongation and flowering.
Flowering was most rapid with 5 or 9 applications of 100 μg GA/ml.
Nine applications of either GA rate and 5 applications of 100 μg GA/ml caused undesirable changes in leaf morphology and stem weakness; these effects were absent in other treatments.
Authors
D. A. Cox
Keywords
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