Volume 33 No. 2 July – December 2011

Heavy Metals Content of Two Red Soils in Samar, Philippines

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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Significant Changes Experienced by Adopters of Sustainable Organic Agriculture Technologies in Ormoc City, Philippines

Catherine L. Corcino1 and Editha C. Cagasan2 ABSTRACT In an effort to help preserve the environment, several organizations have been promoting the use of sustainable organic agriculture (SOA) technologies. Many farmers have already tried adopting one or a combination of these technologies. This study was conducted in Ormoc City, Leyte, Philippines to determine the changes …

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Growth and Yield Performance of Selected Lowland Rice Varieties under Alternate Wet and Dry Water Management

Melanie D. Ratilla and Ulyssess A. Cagasan ABSTRACT Severe water shortage in many parts of the world has caused enormous yield losses in rice. To continue feeding the increasing number of people who are dependent on rice as staple food, there is a need to address the problem on water shortage. One possible solution may …

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Growth and Survival of Mangrove Seedlings under Different Levels of Salinity and Drought Stress

Nit Lyn B. Estomata and Pamela P. Abit ABSTRACT Water availability and salinity are determinants of growth, survival and establishment of mangrove species. This study aimed to compare the ability of the mangrove species to survive extreme water stress, and to determine differences in growth performance and biomass allocation between mangrove species grown in different …

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“Rainforestation Farming” – an Appropriate and Applied Ecological Approach for Landscape Rehabilitation and Impact Mitigation of Climate Change in the Humid Tropics

Friedhelm Göltenboth1 ABSTRACT While the last century was mainly focusing on conservation measures in landscape ecology, the present century has certainly to deal with restoration, rehabilitation and reclamation of entire landscapes. Aspects and forms of degradation are discussed in this paper showing the complexity of the task ahead for researchers and applied agriculturists. The tropical …

“Rainforestation Farming” – an Appropriate and Applied Ecological Approach for Landscape Rehabilitation and Impact Mitigation of Climate Change in the Humid Tropics Read More »

Fish Corral Composition, Abundance, and Distribution in the Reef Flat of Palompon, Leyte, Philippines

Jerome Benedict P. Cabansag1,Arriane Krisna Rose T. Tuazon1 and Liezel C. Paraboles2 ABSTRACT There is paucity of studies relating to fish corral fishery and its management particularly those operated on reef flats. This study was conducted to evaluate the fish catch composition of fish corrals situated in the reef flat of Palompon, Leyte from July …

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Energy Accounting of Irrigated Wheat Production to Post Production (Baking Bread) in Doroodzan Fars Province, Iran

ASeied Mohsen Taghay and Teodoro C. Mendoza ABSTRACT The total energy input (TEI) of irrigated wheat in Fars province, Iran, was estimated at 901 liter diesel oil equivalent per hectare (LDOE ha-1) (423 LDOE or 4819 Mcal, (47%) and 478.14 LDOE or 5454 Mcal, (53%) for wheat production and post production, respectively. The TEI for …

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Bioassay-guided Identification of the Nematicidal Secondary Metabolites from Paecilomyces lilicanus for the Control of Root-knot Nematode (Meloidogyne graminicola, Golden and Birchfield)

Ruben M. Gapasin1, Erlinda A. Vasquez2 and Giselle A. Rendon3 ABSTRACT Meloidogyne graminicola larvae immersed for 48 hours in 100% concentration of Paecilomyces lilicanus culture filtrate had 100% larval mortality while only 7.12% and 18.72% mortality was recorded, after 6 and 12 hours immersion, respectively. Toxic metabolites present in the culture filtrate affected the larvae …

Bioassay-guided Identification of the Nematicidal Secondary Metabolites from Paecilomyces lilicanus for the Control of Root-knot Nematode (Meloidogyne graminicola, Golden and Birchfield) Read More »

The Status of Floristic Analysis of Mt. Pangasugan, Leyte, Philippines – a Conservation Priority Area Claasified as “Extremely High Critical”

Gerhard Langenberger1 and Beatriz S. Belonias2 ABSTRACT The island of Leyte in the Eastern Visayas takes a central position between the Philippines main islands of Luzon and Mindanao. It is characterized by the Leyte Cordillera, which is part of the Philippine fault line. Within the Leyte Cordillera, Mt. Pangasugan takes an exceptional role since it …

The Status of Floristic Analysis of Mt. Pangasugan, Leyte, Philippines – a Conservation Priority Area Claasified as “Extremely High Critical” Read More »

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