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Warta Rimba
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Articles 12 Documents
Search results for , issue "Vol 4, No 2 (2016)" : 12 Documents clear
SIFAT FISIK TANAH PADA HUTAN TANAMAN KEMIRI, LAHAN AGROFORESTRI DAN LAHAN HUTAN SEKUNDER DI DESA LABUAN KUNGGUMA KABUPATEN DONGGALA SULAWESI TENGAH Lapadjati, Karsapakyawan K.; Wardah, Wardah; Rahmawati, Rahmawati
Jurnal Warta Rimba Vol 4, No 2 (2016)
Publisher : Universitas Tadulako

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Abstract

The aim of this research was to find the physical characters of the soil in candlenut forest, agroforestry and secondary forest area at Labuan village Kungguma Donggala District of Central Sulawesi. This research was begun from location orientation, deciding three swath spots which were: candlenut forest, agroforestry area (teak and cocoa) and secondary forest. In deciding the location, purposive sampling was applied. From three locations, 5 samples of soil were taken so that there were 15 samples of soil taken. From five soil samples of one sample location were composed into one soil sample for next three soil samples analyzed in Geology laboratory. The result of the research showed that the conversion of the secondary forest into agroforestry and candlenut forest could reduce the physical characters of the soil (permeability, porosity, Bluk density, and organic material of the soil). Besides that, the texture of the soil in candlenut forest, agroforestry and secondary forest were different; they were sandy clay, dusty clay and clay.Kata Kunci: Physical properties, Candlenut, Secondary Forest, Agroforestry
ANALISIS FITOKIMIA EKSTRAK KAYU EBONI (Diospyros celebica Bakh.) Ariyanti, Ariyanti; Budiarso, Edi; Budi, Agus Sulistyo; Kusuma, Irawan W.
Jurnal Warta Rimba Vol 4, No 2 (2016)
Publisher : Universitas Tadulako

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Abstract

The purpose of this study was to determine the resistant-termite activity through phytochemical analysis with color test methods and compounds from the extracts of ebony. The results of this study are expected to provide early information about the biological activity of extracts of ebony as a natural anti-termite and the possibility of its utilization as a natural preservative in wood preservation. Ebony (Diospyros celebica Bakh.) have a 1th durable class and 1th strong class. Ebony is the endemic species in Central Sulawesi. The methods of maceration ebony powder, extract ethanol, extraction and fractionation and phytochemical analysis through tests of alkoloid, flavonoid, terpenoid, tannin,  saponin, steroid, carotenoid and  cumarin were applied in this research. The results showed that the extract of ebony contains alkaloids in acetone, n-hexane, ethyl acetate, acetone and methanol. Flavonoid compound was found only in the solvent n - hexane. Tannin compound only on the solvent of ethyl acetate. Saponin compound contained in the acetone and methanol solvents. Steroid compound contained in the acetone and methanol solvents. Carotenoid compound is unfound in all solvents. Carbohydrate compound found only in ethanol. Terpenoids compound found in the acetone and methanol solvents. Cumarin compound contained only in n - hexane.Key words : anti termite, extractive, eboni wood, phytochemical analysis.

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