CD Tesis

Pengaruh Aplikasi Fungi Mikoriza Arbuskula (FMA) Terhadap Dinamika Spora dan Total Populasi Bakteri Pelarut Fosfat pada Rizosfer Tanaman Kelapa Sawit (Elaeis guineensis Jacq.) di Tanah Dystrudepts

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Oil palm (E.guineensis Jacq.) is one of the most economically significant crops worldwide, particularly in the palm oil industry. Various factors affect the productivity of oil palm, including the availability of essential nutrients such as phosphorus (P), which is crucial for plant growth and development. Oil palm cultivated in marginal soils, especially Dystrudepts, face numerous challenges, particularly in terms of soil fertility and water availability. To address these issues in Dystrudepts soil, the application of Arbuscular Mycorrhizal Fungi (AMF) has shown potential for enhancing water and nutrient absorption through hyphae that extend into the plant roots. This study aims to analyze the effect of applying Arbuscular Mycorrhizal Fungi (AMF) on the dynamics of spores and the total population of PSB in the rhizosphere of oil palm plants grown in Dystrudepts soil.
The research was conducted in Petapahan Village, Tapung Subdistrict, Kampar Regency, Riau Province, Indonesia. A Completely Randomized Design (CRD) without factorial treatment was used in this study. A purposive sampling method was applied. The AMF inoculated consisted of a combination of spores from Glomus sp., Acaulospora sp., Enterospora sp., and Gigaspora sp.. The treatments included four levels of AMF doses: M0 (without AMF), M1 (150 g/plant AMF), M2 (300 g/plant AMF), and M3 (450 g/plant AMF). Each treatment was replicated five times, resulting in 20 experimental units, with each unit containing one plant. Observed variables included soil chemical properties, mycorrhizal spore counts, total population of phosphate-solubilizing bacteria, and mycorrhizal root infection. Data were analyzed using variance analysis (ANOVA).
The results indicated that AMF application at doses of 150 g, 300 g, and 450 g per plant influenced the dynamics of Glomus, Gigaspora, Acaulospora, and Enterospora spore counts over six months of observation. Application of 150 g AMF per plant after three months increased spore counts of Glomus, Gigaspora, Acaulospora, and Enterospora by 11,39%, 9,8%, 5,04%, and 22,26%, respectively; however, after six months, Gigaspora and Enterospora spore counts decreased by 1,4% and 12,25%, respectively. The 300 g AMF dose per plant after three months increased spore counts of Glomus, Gigaspora, Acaulospora, and Enterospora by 24,96%, 15,86%, 4,35%, and 20,7%, respectively; however, after six months, spore counts of Glomus by 6.2%. Application of 450 g AMF per plant increased spore counts of Glomus, Gigaspora, Acaulospora, and Enterospora by 10,65%, 19,04%, 4,01%, and 7,9%, respectively after three months, but Gigaspora spore counts decreased by 7,78% after six months. The 300 g AMF dose per plant produced the highest total population of phosphate-solubilizing bacteria (PSB), reaching 3,12 x 107 CFU/mL. AMF doses of 300 g per plant also yielded higher root volume and root occupied area compared to other doses and the untreated control. Based on the research conducted, to increase the number of AMF (Arbuscular Mycorrhizal Fungi) spores in the long term, as well as the total population of phosphate-solubilizing bacteria (PSB), root volume, and root occupied in oil palm plants (E.guineensis Jacq.) in Dystrudepts soil, it is recommended to apply AMF at a dose of 300 g per plant.

Keywords: Arbuscular Mycorrhizal Fungi, Phosphate-Solubilizing Bacteria, Oil Palm, Dystrudepts

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

2210247891

Penerbit

Pekanbaru : Universitas Riau – Pascasarjana – Tesis Ilmu Pertanian., 2025

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

2210247891

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

AGRONOMI

Info Detail Spesifik

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Pernyataan Tanggungjawab

Jaka

Versi lain/terkait

Lampiran Berkas

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