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Plant Growth Retardants Can Inhibit Stem Elongation and Improve Flowering Rate in Lilium concolor var. parthneion and L. dauricum  

Eum, Sun Jung (Department of Horticulture, Yeungnam University)
Park, Kyeung Il (Department of Horticulture, Yeungnam University)
Oh, Wook (Department of Horticulture, Yeungnam University)
Kim, Kiu Weon (Department of Horticulture, Yeungnam University)
Publication Information
FLOWER RESEARCH JOURNAL / v.18, no.1, 2010 , pp. 38-43 More about this Journal
Abstract
To develop Korean native lilies as mini-potted plants, the effects of plant growth retardants on inhibiting stem elongation and improving flowering rate were evaluated. Bulblets of Lilium concolor var. parthneion (5-7 g) and L. dauricum (3-4 g fresh wt) derived from in vitro culture and then enlarged by field culture were applied with 0, 25, 50, or $100mg{\cdot}L^{-1}$ ancymidol, diniconazole, and uniconazole through bulb dipping, foliar spray, and drench. In L. concolor var. parthneion, uniconazole dipping most effectively reduced plant height by 60.7-78.3% depending on concentration compared with control without decreasing flowering percentage. In L. dauricum, dipping into diniconazole solution significantly retarded the plant height by 70.0-86.3% and improved flowering percentage by 8.3-18.2% compared to control of 0%. Drench of $25-50mg{\cdot}L^{-1}$ ancymidol was also effective on inhibition of stem elongation and improvement of flowering rate. Therefore, dipping into $50-100mg{\cdot}L^{-1}$ uniconazole solution in L. concolor var. parthneion and dipping into $25mg{\cdot}L^{-1}$ diniconazole solutions or drench of $25mg{\cdot}L^{-1}$ ancymidol in L. dauricum can be useful to produce the mini-potted plants.
Keywords
ancymidol; diniconazole; Korean native lily; plant height control; uniconazole;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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