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- Author or Editor: C. H. Lai x
- HortScience x
Abstract
In daylength-responsive salvia cultivars long photoperiods delayed flowering and increased height. The critical daylength was 15 - 16 hours, and above this, the response was proportional to daylength.
Abstract
The flowering response of ‘St John’s Fire’ salvia is day neutral and occurs between the 8-13th node under both 8 (SD) and 24 hour (LD) photoperiods. In contrast ‘Bonfire’ flowers between the 8–13th node under SD and under LD flowering is delayed to the 16-19th node. Genetic experiments indicate that this difference in photoperiodic response is controlled by a single gene: RR flowers from node 16-20, Rr from node 13-17, and rr from node 8-13. A single dominant gene S conditions stem stripedness; ss is solid colored. S-s and R-r are independently inherited.