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All Journal HAYATI Journal of Biosciences
Samhita, Sasya
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Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences

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Nutrient and Water Acquisition Strategies of Oil Palm Fine Roots Enriched with Crops Species Tonra, Melda Syam; Sulistijorini, Sulistijorini; Samhita, Sasya; Triadiati, Triadiati
HAYATI Journal of Biosciences Vol. 32 No. 5 (2025): September 2025
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.32.5.1199-1213

Abstract

Fine roots (≤2 mm diameter) are a plant organ that plays a major role in nutrient and water acquisition from the soil and a parameter for understanding belowground changes. Fine root traits can determine the plant's strategies in maximizing resource acquisition for productivity with an acquisitive strategy or maximizing resource investment with a conservative strategy. In this study, enrichment planting was carried out in oil palm plantations through a combination of oil palm and tree crops. It is necessary to determine whether enrichment planting can impact the nutrient and water acquisition of oil palm fine roots. Therefore, this study aimed to determine the nutrient and water acquisition strategies of oil palm fine roots enriched with crop species by analyzing differences in morphological traits through fine root inventory. The enrichment planting treatments were R0 (plot of oil palm without enrichment crop), R1 (plot of oil palm with one crop), R2 (plot of oil palm with two crops), R3 (plot of oil palm with three crops), and R6 (plot of oil palm with six crops/multispecies). The results showed that enrichment planting in oil palm plantations can be practiced with two and three crop species, as in plots R2 and R3, which support a conservative strategy with high RTD (root tissue density) and low SRL (specific root length) and SRA (specific root area) in oil palm fine roots. In contrast, high species diversity in plot R6 triggered a shift to an acquisitive strategy with high SRL and SRA and low RTD.
Shifting Root Strategies: Impacts of Forest Conversion on Fine Root Traits in Monoculture Systems Susilawati, Susi; Sulistijorini, Sulistijorini; Samhita, Sasya; Triadiati, Triadiati
HAYATI Journal of Biosciences Vol. 33 No. 3 (2026): May 2026
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.33.3.634-645

Abstract

The intensification of land-use from natural forests to monoculture systems such as rubber and oil palm plantations alters soil structure and resource availability, thereby affecting fine root acquisition strategies. This study assessed the impact of land-use intensification on fine root morphology, water content, and acquisition strategies across different land-use types. Fine root samples were collected from four systems: natural forest, jungle rubber, rubber, and oil palm plantations (five plots per system). Fine roots were classified into absorptive (first–third order) and transportive (fourth–fifth order), and traits were analyzed using WinRHIZO Pro 2020a. The results showed a decline in absorptive root length along the intensification gradient, with oil palm significantly shorter than forest and jungle rubber. In contrast, root length per area (RLA) was higher in the forest than in rubber plantations. Absorptive root tip length was significantly greater in oil palm compared to rubber. Transportive root length also declined, with significant differences only between oil palm and jungle rubber. Fine root diameter (FRD) and root tissue density (RTD) tended to increase, while specific root length (SRL) and specific root area (SRA) tended to decrease in absorptive roots. In transportive roots, SRL was inconsistent, and SRA remained stable. Water content tended to decrease in absorptive roots but remained relatively stable in transportive roots.
Co-Authors , Triadiati SUSILAWATI, SUSI Tonra, Melda Syam