Yusof, Fairuz Fatini Mohd and Zain, Nurul Amalina Mohd and Osman, Normaniza and Lim, Phaik Eem and Cheng, Acga and Gautam, Ayushi and Guleria, Praveen and Kumar, Vineet and Yaacob, Jamilah Syafawati (2024) Acclimation of Polygonum minus Huds. to Low Light Irradiance and Its Effects on Growth, Leaf Gas Exchange and Antioxidant Defense. Journal of Plant Growth Regulation, 43 (9, SI). pp. 3171-3191. ISSN 0721-7595, DOI https://doi.org/10.1007/s00344-023-11076-y.
Full text not available from this repository.Abstract
Polygonum minus Huds. has massive potential to be commercialized following many current discoveries of its medicinal properties. We investigated the growth and physiology changes of P. minus under different shading and treatment durations. The effects of four shading levels: 0% (T1), 30% (T2), 50% (T3) and 70% (T4) and two treatment durations of 10 weeks and 20 weeks were studied. Significant effects of shading levels and treatment durations were observed on the transpiration rate (E), leaf resistance, pigment content in leaves (Chl a, Chl b and Car), carbohydrate, ascorbic acid, total anthocyanin, phenolic and flavonoid contents. Enzyme activity of superoxide dismutase and ascorbate peroxidase were also significantly affected by shading levels and treatment durations. The highest antioxidant activities were recorded under T4 of both treatment durations along with the high content of Chl a, Chl b and Car. The leaf, stem and root extracts of P. minus were also subjected to HPLC analysis for quantification of selected flavonoid compounds. It was observed that longer treatment duration of 20 weeks reduced the amount of flavonoid.
| Item Type: | Article |
|---|---|
| Funders: | Long Term Research Grant Scheme (LRGS) (LR003-2020), Research University Grant (GPF009B-2018) |
| Uncontrolled Keywords: | Polygonum minus Huds; Shading levels; Treatment duration; Growth; Leaf gas exchange; Antioxidant activities |
| Subjects: | Q Science > QH Natural history S Agriculture > S Agriculture (General) S Agriculture > SB Plant culture |
| Divisions: | Faculty of Science > Institute of Biological Sciences Deputy Vice Chancellor (Research & Innovation) Office > Centre for Research in Biotechnology for Agriculture Deputy Vice Chancellor (Research & Innovation) Office > Institute of Ocean and Earth Sciences |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 30 Dec 2024 02:54 |
| Last Modified: | 30 Dec 2024 02:54 |
| URI: | http://eprints.um.edu.my/id/eprint/47162 |
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