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All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Jurnal Sylva Lestari
Handojo Hadi Nurjanto
Jurusan Budidaya Hutan Fakultas Kehutanan Universitas Gadjah Mada
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Energy Environmental Science Materials Science & Nanotechnology

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Phosphorus Availability Affecting the Diversity of Arbuscular Mycorrhizal Fungi (AMF) in the Artisanal Gold Mining Area Jayani, Faradila Mei; Faridah, Eny; Nurjanto, Handojo Hadi; Riniarti, Melya
Jurnal Manajemen Hutan Tropika Vol. 30 No. 3 (2024)
Publisher : Institut Pertanian Bogor (IPB University)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.7226/jtfm.30.3.390

Abstract

Arbuscular mycorrhizal fungi (AMF) diversity is influenced by biotic and abiotic factors. Several studies have shown the presence of AMF in ex-gold mining areas with low soil fertility and heavy metal accumulation. The purpose of this study was to analyze the diversity of AMF species in artisanal gold mining areas. The experimental design used is randomized group design with two treatment factors: the interval distance range from tailings disposal point (A) and the vegetation type (B). Interval distance treatment consisted of two levels (A1: 0-10 m and A2: 10-20 m). Vegetation type treatment (B) consists of three levels (B1: Theobroma cacao, B2: Mangifera indica, B3: Artocarpus heterophyllus). Some types of AMF spores found are Acaulospora sp. 1, Acaulospora sp. 2, Acaulospora sp. 3, Acaulospora sp. 4, and Acaulospora sp. 5. The index of species richness and diversity of AMF species in the artisanal gold mining area is low. The existence of AMF symbiosis with plants in artisanal gold mining areas is also indicated by the presence of colonization in the roots of T. cacao, M. indica, and A. heterophyllus with a low to medium category. Pearson correlation test results showed that AMF species diversity index and P availability were not correlated (r = -0.204, p-value = 0.699). Pearson correlation test results also show that AMF colonization and P availability are not correlated (r = -0.756, p-value = 0.082). Although not correlated, based on the graph, it can be seen that the higher the available P element, the smaller the index value of species diversity and AMF colonization.
Responds of Superior Teak (Tectona grandis) on Different Sulphur Concentrations Lestari, Puji; Arifriana, Ridla; Nurjanto, Handojo Hadi
Jurnal Sylva Lestari Vol. 7 No. 2 (2019): May
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl27128-138

Abstract

The tree improvement program has invented superior teak with an ability to improve its productivity. Yet the information about basic nutrient requirement of superior teak is less known. This study aimed to determine the optimal concentration of sulfur for the best growth of superior teak seedling and to identify the morphological symptoms of teak seedlings affected by several concentration levels of S. This study was conducted at a nursery on six months old teak seedlings. The experimental design was Completely Randomized Design (CRD) with four different solution treatments with three replication each. The treatments are K (control, aqua dest does not contain nutrients), S0 (solution contains nutrients except sulfur), S1 (solution contains nutrients with 0,5 full strength of S), and S2 (solution contains nutrients with full strength of S). Each treatment was replicated 3 times. Parameter observed included the height of seedling, the diameter of seedling, the nodal distance of seedling, the number of leaves, size of leaves and morphological symptoms of leaf. The results showed that at a concentration of nitrogen (N), phosphor (P), potassium (K), calcium (Ca), and magnesium (Mg) in full strength level, superior teak seedling which treated by S1 (S concentration of 421 ppm) resulted in the best growth. However, the morphology of teak leaves in all treatment showed abnormal.Keywords: growth, morphology, sulfur, superior teak
Co-Authors Eny Faridah JAYANI, FARADILA MEI Melya Riniarti PUJI LESTARI Ridla Arifriana