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The effects of long days on the flowering of spray carnations






Acta Horticulturae (51): 225-235

The effects of long days on the flowering of spray carnations

Studies were carried out on the cvs Sam's Pride, Scarlet Miniqueen and Royalette. When most of the shoots had 7-9 expanded pairs of leaves incandescent illumination at 20 W/m2 was given for 2, 3 or 4 weeks during the night, starting on 14 February. The 4-week treatment gave the best results, inducing flowering 23, 18 and 17 days earlier, respectively, for the 3 cvs compared with the non-illuminated control.


Accession: 000538204



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