Variations of ´13C and ´15N in oil palm tree organs: an insight into C and N distribution

Syahidah Akmal Muhammad, . and Mohd Omar Ab Kadir, . and Ainolsyakira Mohd Rodhi, . and Hasnuri Mat Hassan, . Variations of ´13C and ´15N in oil palm tree organs: an insight into C and N distribution. pp. 242-250. ISSN 1511-2780

Many studies have shown that seasonal variation in fruit bunch production occurs in relation to climatic factors and internal trophic conditions. As the annual fruit bunch production is important for planters there is a need to get some insights into the carbon (C) and nitrogen (N) distribution in oil palm tree which are key factors in delineating plant C fluxes and nutrient cycling dynamics. Hence this study utilises stable C and N isotope analyses to assess possible variations in the ´13C and ´15N signature in oil palm organs. Our study found that the average ´13C of each oil palm tree organs are; root: “27.1 frond: “27.9 leaflets: “29.1 mesocarp: “28.6 and kernel: “28.7. The ´13C results showed an enrichment of 13C in heterotrophic organs compared to leaflets. Whilst the average ´15N values of oil palm tree organs are; root: 4.4 frond: 8.9 leaflets: 1.6 mesocarp: 10.3 and kernel: 6.8. The ´15N results also showed 15N enrichment in heterotrophic organs compared to leaflets. In conclusion there were clear isotopic differences between autotrophic leaflets and heterotrophic organs. This study demonstrates the applicability of stable isotope analysis (SIA) in providing novel insights into C and N distribution in oil palm tree whereby both factors are key in the understanding of oil palm physiology which in turn is crucial in maintaining a productive fruit bunch yield annually.

Full text available from: Official URL: http://jopr.mpob.gov.my/variations-of-%CE%B413c-an...

Abstract

Many studies have shown that seasonal variation in fruit bunch production occurs in relation to climatic factors and internal trophic conditions. As the annual fruit bunch production is important for planters there is a need to get some insights into the carbon (C) and nitrogen (N) distribution in oil palm tree which are key factors in delineating plant C fluxes and nutrient cycling dynamics. Hence this study utilises stable C and N isotope analyses to assess possible variations in the ´13C and ´15N signature in oil palm organs. Our study found that the average ´13C of each oil palm tree organs are; root: “27.1 frond: “27.9 leaflets: “29.1 mesocarp: “28.6 and kernel: “28.7. The ´13C results showed an enrichment of 13C in heterotrophic organs compared to leaflets. Whilst the average ´15N values of oil palm tree organs are; root: 4.4 frond: 8.9 leaflets: 1.6 mesocarp: 10.3 and kernel: 6.8. The ´15N results also showed 15N enrichment in heterotrophic organs compared to leaflets. In conclusion there were clear isotopic differences between autotrophic leaflets and heterotrophic organs. This study demonstrates the applicability of stable isotope analysis (SIA) in providing novel insights into C and N distribution in oil palm tree whereby both factors are key in the understanding of oil palm physiology which in turn is crucial in maintaining a productive fruit bunch yield annually.

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Item Type:	Article
AGROVOC Term:	Elaeis guineensis
AGROVOC Term:	Oil palms
AGROVOC Term:	Carbon
AGROVOC Term:	Chemical composition
AGROVOC Term:	Distribution
AGROVOC Term:	Isotope fractionation
AGROVOC Term:	Plantations
AGROVOC Term:	Tropical climate
AGROVOC Term:	Rainfall
AGROVOC Term:	Kernels
Geographical Term:	Malaysia
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	28 Apr 2025 06:53
URI:	http://webagris.upm.edu.my/id/eprint/24162

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