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Aufa, Putro Nurun
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology

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Correlation Analysis of Cocopeat Planting Media with Plant Height, Stem Diameter, and Number of Leaves of Oil Palm Plants (Elaeis guineensis Jacq) Abdullah, Umar Husein; Mulyanti; Keumalasari, Sofia; Yana, Dewi; Aufa, Putro Nurun
Biotropika: Journal of Tropical Biology Vol. 14 No. 2 (2026)
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.biotropika.2026.014.02.06

Abstract

The increasing demand for high-quality oil palm seedlings requires nursery growing media that are both effective and sustainable. Cocopeat, an abundant agricultural by-product, is widely used as a planting medium, however,  its linear relationship with key seedling growth parameters is not fully understood. This study aimed to analyse the correlation between cocopeat application rates and plant height, stem diameter, and number of leaves of oil palm seedlings (Elaeis guineensis Jacq.). The experiment was conducted under controlled nursery conditions in Aceh Besar, Indonesia, using a randomised block design with cocopeat doses ranging from 0 to 400 g, combined with equal amounts of soil and NPK fertiliser. Pearson bivariate correlation analysis showed that variations in the cocopeat dosage generally did not exhibit significant correlations with plant height, stem diameter, or leaf number, indicating a non-linear growth response. However, the highest cocopeat dose (400 g) showed a significant positive effect on stem diameter. These results suggest that cocopeat does not proportionally enhance all growth variables but may improve specific structural traits once a threshold level is reached. The study concluded that cocopeat acts as a threshold-based modifier of the physical properties of growing media rather than a linear driver of oil palm seedling growth, providing practical guidance for optimising nursery media formulations.
Co-Authors Dewi Yana, Dewi Keumalasari, Sofia Mulyanti Umar Husein Abdullah