Evaluation Of Glutathione Disulphide On Oil Palm Seedlings (Elaeis guineensis) At Nursery Stage

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dc.contributor.authorWong, Yen Siang
dc.date.accessioned2019-08-09T07:46:50Z
dc.date.available2019-08-09T07:46:50Z
dc.date.issued2017-06
dc.description.abstractIn the oil palm industry, increasing yield productivity without further land expansion is an important priority for big companies and smallholders. Glutathione disulphide (GSSG) has the potential to promote seedling growth and increase palm fruit productivity. This study was conducted to evaluate the effect of GSSG on the growth of oil palm seedlings grown under nursery and greenhouse conditions. The seedlings were tested with two forms of GSSG that were liquid and granules. After 120 days of growth in the greenhouse, seedlings were harvested and determined for dry weight, chlorophyll content and nutrients content. The antioxidant activities of the seedlings were compared with three different assays namely DPPH, FRAP and metal chelating assay. All parameters measured were then statistically analyzed. Genomic DNA was also extracted from the soil of palm oil and 16S rDNA metagenomic sequencing was carried out to determine bacterial abundance between GSSG-treated and control soil. The results revealed that the top biomass and root volume in oil palm seedlings was effectively enhanced up to 108% and 140% respectively due to exogenous application of GSSG solution. Bigger leaves and height increase was observed for GSSG solution-treated seedlings compared to the control. Besides, DPPH scavenging activity was significantly higher in GSSG-treated seedlings (6.36 mg/mL – 8.04 mg/mL) than the control seedlings (10.64 mg/mL). The 16S rDNA metagenomic analysis revealed diversity of bacterial communities in the soil. Both Proteobacteria and Firmicutes accounted for the biggest abundance of between 30% and 60% in the soil for all the treatments observed. The results presented here suggested that GSSG have the potential to be utilized and applied at oil palm nurseries.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/8615
dc.language.isoenen_US
dc.publisherUniversiti Sains Malaysiaen_US
dc.subjectEvaluation of glutathione disulphideen_US
dc.subjecton oil palm seedlings at nursery stageen_US
dc.titleEvaluation Of Glutathione Disulphide On Oil Palm Seedlings (Elaeis guineensis) At Nursery Stageen_US
dc.typeThesisen_US
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