| Pak. J. Bot., 41(5): 2323-2332, 2009. | Back to Contents | ||||
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Updated: 26-11-09 | ||||
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EFFECT OF PACLOBUTRAZOL ON FLOWERING, LEAF AND FLOWER COLOUR OF CONSOLIDA ORIENTALIS
Abstract:
Effect of paclobutrazol on flowering characteristics, leaf and flower
colour of Consolida orientalis (Gay) Schröd., native to South
Anatolia (Turkey) was investigated. Seeds were directly sown into soil
under unheated greenhouse and natural photoperiod conditions on 17
January and paclobutrazol at concentrations of 0 (control), 125, 250 and
500 mg·L-1 was applied to plants as foliar spray, when 5% of
plants had elongated first internodes. Paclobutrazol had no significant
effect on the time from sowing to flowering. Plant height, length and
internode length of main and secondary inflorescences, pedicel length
and the number of secondary inflorescence significantly reduced with
increasing concentrations of paclobutrazol. Flower number on main
inflorescence at concentration of 250 mg·L-1, and stem
diameter and flower number on secondary inflorescence at concentration
of 500 mg·L-1 increased compared with control treatment.
Paclobutrazol decreased lightness (L*) and colour saturation (chroma)
values of leaves and lightness (L*) of flowers. Plants treated with
paclobutrazol had darker green leaves and deeper violet flowers than
that of control plants. Department of Landscape Architecture, Faculty of Agriculture, Akdeniz University, 07070 Antalya, Turkey. |
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