Growth inhibition of Syzygium campanulatum korth. for container planting by the application of uniconazole

Ahmad Nazarudin Mohd. Roseli, . and Tsan Fui Ying, . and Mohd. Fauzi Ramlan, . Growth inhibition of Syzygium campanulatum korth. for container planting by the application of uniconazole. pp. 1-6. ISSN 1511-3701

This study was carried out to determine the optimal dosage of a plant growth regulator uniconazole for controlling the growth of Syzygium campanulatum for container planting purposes. Uniconazole at ascending rates of 0 10 20 and 30 mgl-1 was applied as soil drench to plants grown in polyethylene bags (33 x 27 cm). The application of uniconazole significantly inhibited vegetative growth in terms of height and leaf area. Meanwhile the most effective application rate of uniconazole for height suppression was 10 mgl-1. The transpiration rate and stomatal conductance of the plants treated with 30 mgl-1 were slightly lower as compared to the control plants while the photosynthetic rate was not affected. However the chlorophyll fluorescence measurement indicated that the application of uniconazole did not affect the photosynthetic performance of this particular species. Uniconazole was able to extend the trimming cycle and would be very helpful in controlling the height of S. campanulatum without affecting the physiological processes in the plant.

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Abstract

This study was carried out to determine the optimal dosage of a plant growth regulator uniconazole for controlling the growth of Syzygium campanulatum for container planting purposes. Uniconazole at ascending rates of 0 10 20 and 30 mgl-1 was applied as soil drench to plants grown in polyethylene bags (33 x 27 cm). The application of uniconazole significantly inhibited vegetative growth in terms of height and leaf area. Meanwhile the most effective application rate of uniconazole for height suppression was 10 mgl-1. The transpiration rate and stomatal conductance of the plants treated with 30 mgl-1 were slightly lower as compared to the control plants while the photosynthetic rate was not affected. However the chlorophyll fluorescence measurement indicated that the application of uniconazole did not affect the photosynthetic performance of this particular species. Uniconazole was able to extend the trimming cycle and would be very helpful in controlling the height of S. campanulatum without affecting the physiological processes in the plant.

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Item Type:	Article
AGROVOC Term:	Syzygium
AGROVOC Term:	Uniconazole
AGROVOC Term:	Container planting
AGROVOC Term:	Growth inhibition
AGROVOC Term:	Plant growth regulators
AGROVOC Term:	Plant physiology
AGROVOC Term:	Container plants
AGROVOC Term:	Chlorophylls
AGROVOC Term:	Fluorescence
AGROVOC Term:	Transpiration
Geographical Term:	Malaysia
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	27 Apr 2025 23:32
URI:	http://webagris.upm.edu.my/id/eprint/22771

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