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Profiling Tree Nurseries in Northern Mindanao, the Philippines

Volume 32 No. 2 July - December 2010 / By

Don Immanuel Edralin and Agustin Mercado Jr ABSTRACT Forestry nurseries play an important role in supporting small-scale plantations, tree farming as well as government initiated afforestation and reforestation programs. However, some major constraints have been identified in the forestry nursery sector in the Philippines, particularly in the supply of high quality planting materials. This hindrance …

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The Seedling Nursery Survey on Leyte Island, the Philippines

Volume 32 No. 2 July - December 2010 / By

Nestor Gregorio1, Steve Harrison2 and John Herbohn2 ABSTRACT Private and government nurseries in the Philippines are not delivering high quality planting materials of a wide species base for smallholder forestry, tree farming and reforestation programs in the country. A project supported by the Australian Centre for International Agricultural Research (ACIAR) has been conducted to improve …

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Organic Agriculture: The logical sequence to modern chemical agriculture in the Philippine context

Volume 32 No. 1 January - June 2010 / By

Teodoro C. Mendoza ABSTRACT Organic agriculture, which is also described as less fossil fuel-dependent and agrochemical-free agriculture, is now perceived as the logical sequence to the food production systems which are dependent on agro-chemical inputs from production to processing. This paper discusses the situations and factors that should be considered in the crucial process of …

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Nitrogen mineralization and phosphorus solubization due to rewetting of forest and paddy soils

Volume 32 No. 1 January - June 2010 / By

Marco Rodel J. Aragon and Victor B. Asio ABSTRACT Rewetting of soils may cause an increase in phosphorus solubilization and nitrogen mineralization resulting in the release of bioavailable phosphates and nitrate which are vital for crop growth but are also associated with eutrophication of surface waters. The study was conducted to evaluate P solubilization and …

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Cassava grates processing wastes as source of electrical energy

Volume 32 No. 1 January - June 2010 / By

Mark Anthony R. Atanacio1, Daniel Leslie S. Tan2 and Felix J. Amestoso3 ABSTRACT The study aimed to generate electricity from cassava (Manihot esculenta) extract using an improvised microbial fuel cell (MFC). In the development of the MFC, screening experiment using 8-run Plackett-Burman (PB) technique and optimization procedure following response surface methodology (RSM) were employed. More …

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Delayed yellowing of broccoli florets by ethanol: Some physio-biochemical changes during storage

Volume 32 No. 1 January - June 2010 / By

Dewoowoogen P. Baclayon1 and Toshiyuki Matsui ABSTRACT Harvested broccoli heads rapidly senesces after it is severed from the mother plant due to complex metabolic processes occurring in tissues. Specifically, abrupt increase in ethylene and decline in sucrose were reported. The elucidate further these changes, 25% ethanol was applied in heads prior to storage. The relationship …

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Purification and partial characterization of white radish (Raphanus sativus L. var. Long White) peroxidase from cell sespension culture extract(RETRACTED)

Volume 32 No. 1 January - June 2010 / By

Sri Pudjiraharti and Andi Tenri Adjeng Karossi ABSTRACT Peroxidase mainly Horseradish peroxidase (HRP) has been widely used as a component of clinical diagnostic reagent for Enzyme Linked Immunosorbent Assay (ELISA) technique. White radish (Raphanus sativus L.) was found as another source of peroxidase. In this study, white radish was used for the production of peroxidase …

Purification and partial characterization of white radish (Raphanus sativus L. var. Long White) peroxidase from cell sespension culture extract(RETRACTED) Read More »

Heavy Metals Content of Two Red Soils in Samar, Philippines

Volume 33 No. 2 July - December 2011 / By

Ian A. Navarrete1,2 and Victor B. Asio2 ABSTRACT The study evaluated the total and available heavy metal (Cd, Cu, Cr, Pb, Ni and Zn) contents of two red soils in Samar, Philippines, one developed from slate near a mining site (Bagacay soil) and other from serpentinite (Salcedo soil), a well-known source of heavy metals. Soil …

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