Citation
L.T. Jeng, . and S.A. Abod, . Effects of Paclobutrazol and its method of application on the growth and transpiration of Acacia mangium seedlings. pp. 143-150. ISSN 0126-6128
Abstract
Ten-week-old potted A. mangium seedlings were subjected to a growth retardant paclobutrazol (PP333) at concentrations of 0 0.5 1 4 and 12 g/l. Four methods of application were tested namely S soil drenching at week 0; Fl foliar spray (potting soil protected from chemical) at week 0; F2 foliar spray (potting soil protected from chemical) at week 0 and 6; and SF soil and foliar spray (potting soil exposed to chemical spray) at week 0. Plants were harvested after 12 weeks for various growth measurements. Height and leaf area increments transpiration and stomatal conductance were monitored at weekly intervals. Paclobutrazol was found to be effective in reducing root and shoot growth transpiration and stomatal conductance of the seedlings. Treated plants had higher root to shoot ratios. The effects of the chemical increased with increasing concentration and frequency of application for the foliar spray. The chemical was most effective when applied through the soil either by drenching (S) or soil and foliar spray (SF).
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Abstract
Ten-week-old potted A. mangium seedlings were subjected to a growth retardant paclobutrazol (PP333) at concentrations of 0 0.5 1 4 and 12 g/l. Four methods of application were tested namely S soil drenching at week 0; Fl foliar spray (potting soil protected from chemical) at week 0; F2 foliar spray (potting soil protected from chemical) at week 0 and 6; and SF soil and foliar spray (potting soil exposed to chemical spray) at week 0. Plants were harvested after 12 weeks for various growth measurements. Height and leaf area increments transpiration and stomatal conductance were monitored at weekly intervals. Paclobutrazol was found to be effective in reducing root and shoot growth transpiration and stomatal conductance of the seedlings. Treated plants had higher root to shoot ratios. The effects of the chemical increased with increasing concentration and frequency of application for the foliar spray. The chemical was most effective when applied through the soil either by drenching (S) or soil and foliar spray (SF).
Additional Metadata
| Item Type: | Article |
|---|---|
| AGROVOC Term: | Acacia mangium |
| AGROVOC Term: | Seedlings |
| AGROVOC Term: | Paclobutrazol |
| AGROVOC Term: | Growth |
| AGROVOC Term: | Transpiration |
| AGROVOC Term: | Stomatal conductance |
| AGROVOC Term: | Foliar application |
| AGROVOC Term: | Triazoles |
| AGROVOC Term: | Plant water relations |
| AGROVOC Term: | Planting stock |
| Geographical Term: | Malaysia |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 27 Apr 2025 23:31 |
| URI: | http://webagris.upm.edu.my/id/eprint/22765 |
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