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Publication
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| Research Title |
Effect of paclobutrazol application on growth, flowering and inulin content of ornamental Helianthus tuberosus L. |
| Date of Distribution |
3 January 2019 |
| Conference |
| Title of the Conference |
XIII International Symposium on Flower Bulbs and Herbaceous Perennials |
| Organiser |
International Society for Horticultural Science: ISHS |
| Conference Place |
Grand Ambassador, Seoul, Korea |
| Province/State |
Seoul, Korea |
| Conference Date |
1 May 2019 |
| To |
3 May 2019 |
| Proceeding Paper |
| Volume |
2019 |
| Issue |
1237 |
| Page |
161-168 |
| Editors/edition/publisher |
J.M. van Tuyl |
| Abstract |
Paclobutrazol (PBZ) is a plant growth retardant often used in potted ornamental
plants to control their height and canopy for compactness. Helianthus tuberosus L.,
belonging to the Asteraceae family, has the potential to be developed as an edible
ornamental potted plant. It has long lasting vivid yellow flowers and contains many
nutritional tubers in the underground parts. However, an obstacle for
commercialization is the control of the plant height. Therefore we evaluated different
PBZ application methods (media drenching and tuber soaking) and concentrations (0,
50 and 100 ppm) on growth, flowering and inulin content of H. tuberosus The results
show that PBZ concentration significantly reduced all growth parameters (plant
height, canopy width and total leaf area), providing more compact plants of good
commercial value, representing a reduction of compactness index (cm2 cm-1) and
confirming its efficiency to reduce the vertical growth. None of the PBZ application
methods affected plant height, canopy width, number of flowers, percentage of
flowering and inulin content, while tuber-soaking treatment gave a reduction of total
leaf area and compactness index. PBZ application at 50 ppm was sufficient to reduce
plant height, total leaf area and compactness index compared with normal plants.
Increasing the PBZ concentration seems to increase inulin content in tubers, although
it seems to decrease the number of flowers. |
| Author |
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| Peer Review Status |
มีผู้ประเมินอิสระ |
| Level of Conference |
นานาชาติ |
| Type of Proceeding |
Full paper |
| Type of Presentation |
Oral |
| Part of thesis |
true |
| Presentation awarding |
false |
| Attach file |
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| Citation |
0
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Journal Publication
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