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Effect of Drench Application of Growth Retardants on Growth and Development in Cut Lilies  

Park, In Sook (Dept. of Horticulture, Kyungpook National University)
Park, Song Kyoung (Dept. of Horticulture, Kyungpook National University)
Naing, Aung Htay (Dept. of Horticulture, Kyungpook National University)
Hwang, Yoon Jung (Dept. of Horticulture, Kyungpook National University)
Kang, Si-Yong (Advanced Radiation Technology Institute, KAERI)
Lim, Ki Byung (Dept. of Horticulture, Kyungpook National University)
Publication Information
FLOWER RESEARCH JOURNAL / v.18, no.3, 2010 , pp. 165-170 More about this Journal
Abstract
This study was carried out to investigate the effect of three different growth retardants for applying pot or bedding plant with 'Rialto', 'Elodie', and 'Raizan'. Ancymidol, uniconazole, and paclobutrazol were applied as a drench at various concentrations. In Oriental hybrid lily 'Rialto', no changes were observed not only plant height but also leaves and flowers in paclobutrazol treatment. But the growth of plant treated with ancymidol was inhibited above 30% compare to control regardless of concentrations. However, numbers of leaf and flower per plant were similar to those of controls. Plant height was similar to nontreated control in $1mg{\cdot}L^{-1}$ uniconazole treatment but that reduced about 30% in drench application of 5 and $10mg{\cdot}L^{-1}$ uniconazole. Asiatic hybrid lily 'Elodie' was not different in growth between application of paclobutrazol and nontreatment as 'Rialto'. While, in all ancymidol treatments, plant height was 50~60% shorter than that of control. Also, numbers of leaves were reduced and days to flowering were slightly delayed in $30mg{\cdot}L^{-1}$ ancymidol treatment as compared with the control. All traits except plant height of $1mg{\cdot}L^{-1}$ uniconazole were similar to control but there were differences of statistical significance between 5, $10mg{\cdot}L^{-1}$ uniconazole drench and nontreated control. Lilium ${\times}$ formolongi 'Raizan' like above two cultivars had no dwarf effect on height in paclobutrazol treatment. In drench application of ancymidol, plant height reduced over 60% than that of control regardless of concentrations. Especially, days to flowering were a little delayed with $30mg{\cdot}L^{-1}$ paclobutrazol treatment. Plant height of $10mg{\cdot}L^{-1}$ uniconazole was about 26% shorter than that of control, but other traits were no differences between uniconazole treatment and control. In result, the drench application of ancymidol and uniconazole was pretty effective for usage as pot lily without great changes of quantitative traits.
Keywords
ancymidol; paclobutrazol; plant height; pot lily; uniconazole;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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