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Quiling, Philippines

The Mariano Marcos State University is a multidisciplinary, state-funded institution of higher learning that serves the Ilocos Region and its surrounding regions in the Philippines. Wikipedia.

Rola A.C.,University of the Philippines at Los Banos | Chupungco A.R.,University of the Philippines at Los Banos | Elazegui D.D.,University of the Philippines at Los Banos | Tagarino R.N.,University of the Philippines at Los Banos | And 2 more authors.
Philippine Agricultural Scientist | Year: 2010

The article discusses the results of an ex-ante assessment of the consequences of importation of Bt cotton tolerant to cotton bollworm and pink bollworm in order to guide policy decisions on whether or not to import and commercialize the technology in the Philippines. Primary and secondary data were generated through farm survey, interviews of key informants from the public and the private sectors, and focus group discussions with stakeholders. Four components of ex-ante assessment were done: industry level, location-specific research and development, commercialization and farm-level adoption. Welfare analysis was also conducted. Based on the results, importation could only be economically viable if the land area planted to Bt cotton is greater than 5,000 ha, a little higher than the 3,681 ha planted to traditional cotton for the crop year 2005-2006. Commercialization of Bt cotton in the Philippines will also result in positive benefits if the spill-over effects are taken into account, if regulatory costs are reasonable and if a yield increase of at least 20% is realized by farmers. The introduction of Bt cotton in the Philippines could broaden the farmers' technology base. With the high level of expected benefits, the private sector can be attracted to invest in its commercialization. Reduced regulatory costs could actually translate to lower seed costs, thereby, promoting farmer adoption. If the technology is made available in the country, government should be vigilant in monitoring its possible environmental impacts and that of all other Bt and genetically modified (GM) crops for feedback to researchers and regulators and for risk reduction strategies. Source

Juinio-Menez M.A.,University of the Philippines at Diliman | Bangi H.G.P.,University of the Philippines at Diliman | Bangi H.G.P.,Mariano Marcos State University
Marine Ecology Progress Series | Year: 2010

Experiments were conducted to determine the effects of water conditioned with Sargassum (i.e. fresh and ground Sargassum and excreta of Sargassum-fed Tripneustes gratilla) as well as the effects of adult sea urchins (i.e. Salmacis sphaeroides and T. gratilla), larval age and parentage on the settlement and metamorphic rate of full-sibling batches of T. gratilla larvae. The majority of larvae (35 to 57 d old) settled within the first hour of the assays, but significantly more settled and metamorphosed completely in the conditioned water treatments than in the control (boiled filtered seawater). Completely metamorphosed larvae in the control treatment indicate that specific cues are not necessary to induce settlement and metamorphosis of competent larvae. However, habitat cues enhanced metamorphic rate significantly. Complete metamorphosis occurred earlier in Sargassum treatments, and the number of completely metamorphosed larvae was significantly higher in the ground Sargassum treatment. Observations of early juvenile aggregations on Sargassum further suggest that algal metabolites may enhance benthic recruitment. The sensitivity of sea urchin larvae to waterborne cues differed among larval age groups. Older batches of larvae metamorphosed faster, particularly in the ground Sargassum treatment, while the intermediate age group also had high metamorphic rates in both sea urchin treatments. There were significant differences in metamorphic rate among full sibling batches of larvae of the same age, as well as significant interaction between batch and treatment over time. Results indicate that differences in the age of competent larvae and genetic factors affect the ability of larvae to detect cues to initiate and complete metamorphosis. © Inter-Research 2010, www.int-res.com. Source

Alibuyog N.,Mariano Marcos State University | Comiso J.C.,NASA
ACRS 2015 - 36th Asian Conference on Remote Sensing: Fostering Resilient Growth in Asia, Proceedings | Year: 2015

Satellite remote sensing data are used to study the distribution and estimate the areal coverage of the two most dominant crops, namely, rice and corn, in the Philippines. The EOS/Terra MODIS data were used to assemble a 15-year time series of monthly NDVI data over Northern Philippines at a resolution of 250m. The monthly data were used to investigate seasonal patterns of crops and to derive nine phenological parameters from the distributions of rice and corn in Northern Philippines, which in turn were used in conjunction with a maximum likelihood classifier to discriminate areas planted by rice and corn during the wet and dry seasons. Classification was done in areas that usually have two cropping seasons and where the starts of the planting seasons are consistent with those expected from climatology. The resulting maps show a spatial distribution of corn and rice crops during the wet and dry seasons that are generally plausible and found to be highly correlated and comparable, with some exceptions, to data published by the Bureau of Agricultural Statistics. Source

Orpia C.B.,Mariano Marcos State University | Mapa D.S.,University of the Philippines | Orpia J.C.,Magat Inc.
Journal of Environmental Management and Tourism | Year: 2014

Wind energy is the fastest growing renewable energy technology. Wind turbines do not produce any form of pollution. Moreover, when strategically positioned the wind turbines blend with the area’s natural landscape. In the long run, the cost of electricity using wind turbines is cheaper than conventional power plants since it does not consume fossil fuel. Wind speed modeling and forecasting are important in the wind energy industry starting from the feasibility stage to actual operation. Forecasting wind speed is vital in the decision-making process related to wind turbine sizes, revenues, maintenance scheduling and actual operational control systems. This paper uses econometric models to forecast the wind speeds of turbines in the Northwind Bangui Bay wind farm located in the Province of IlocosNorte, Philippines, using the Vector Auto Regressive (VAR) model. The explanatory variables used are local wind speed, humidity, temperature and pressure generated from the meteorological station in Laoag City, Province of IlocosNorte, Philippines. The use of VAR model, using daily time series data, reveals that wind speeds of the turbines can be explained by the past wind speed, the wind speed in Laoag City, humidity, temperature and pressure. Results of the analysis, using the forecast error variance decomposition, show that wind speed in Laoag City, temperature and humidity are important determinants of the wind speeds of the turbines. © 2014 ASERS Publishing House. All rights reserved. Source

Nacional L.M.,Mariano Marcos State University | Kang S.-J.,Gyeongsang National University | Choi B.-D.,Gyeongsang National University
Fisheries and Aquatic Science | Year: 2012

Carotenoids were found in high levels in both muscle and tunic samples, with the highest and lowest values observed in March and January, respectively. The average values in muscle (GM) and tunic (GT) harvested in Geoje were 49.1 mg/100g and 56.7 mg/100g, respectively, whereas those in muscle (TM) and tunic (TT) harvested in Tongyeong were 42.0 mg/100g and 50.2 mg/100g, respectively. The total phenol contents of the tunic were not significantly different (P < 0.05) between sampling area and month. We investigated the antioxidative activities of the carotenoids against linoleic acid peroxidation [1,1-diphenyl-2-picrylhydrazyl (DPPH)] and hydroxyl radicals as well as their reducing power. The DPPH radical scavenging activity was 7.6-13.5% in GM, which is relatively weak, whereas it was 21.1-29.9% in GT, 9.6-12.4% in TM and 19.3-24.1% in TT. In comparison to α-tocopherol, the carotenoids were found to have strong inhibitory effects against linoleic acid peroxidation, and exhibited strong hydroxyl radical scavenging activities and reducing power at 120 μg/mL of each sample. © The Korean Society of Fisheries and Aquatic Science. Source

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