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Database of Abstracts of Theses and Dissertations of SEAMEO SEARCA Scholars
Showing 421–430 of 1,515 records
"Land use change and its impacts on watershed function and food security in Huaynamphung Subwatershed, Thailand"
The study was conducted in the 66,073.59 ha Huaynamphung Subwatershed in Thailand covering four districts having different topographies (i.e., mountainous on the western side and relatively flat on the eastern side. The study assessed the land use... Read more.PhD in Environmental Science (University of the Philippines Los Baños)"Leaf and fruit nitrogen, potassium, and calcium concentrations in relation to fruit yield, quality, and severity of anthracnose in mango (Mangifera indica L.)"
The effect of pre-harvest nitrogen fertilization on the post-harvest disease, yield, and fruit quality was determined on 10–15-year-old ‘Carabao’ mango trees. The treatments included four levels of nitrogen (0, 100, 200, and 300 g... Read more.MS in Horticulture (University of the Philippines Los Baños)"Mechanism of histamine formation and control in fermented viscera ‘dayok’ from yellowfin tuna [Thunnus albacares (Bonnaterre)]."
Dayok is a fermented fish product prepared from tuna viscera. This study aimed to determine the formation and control of histamine in fermented tuna viscera as influenced by different salt concentrations (10, 17.5, and 25%), fermentation ... Read more.PhD in Food Science (University of the Philippines Los Baños)"Natural and artificial regenerations in the rock dump site of abandoned mining area in Larap, Jose Panganiban, Camarines Norte, Philippines."
Regeneration of mined-out area is not far-fetched but possible although poses herculean challenges in terms of resources, both technical and financial. This study assessed/evaluated the natural and artificial regenerations in the rock dump site of... Read more.PhD in Environmental Science (University of the Philippines Los Baños)"Optimization of emblic fruit (Phyllanthus emblica L.) processing methods for maximum retention of functional properties"
The study was conducted to evaluate the physicochemical and antioxidant properties, shelf life, and consumer acceptability of developed emblic fruit products (juice and candy). The effects of processing and storage condition on the quality of the... Read more.PhD in Food Science (University of the Philippines Los Baños)"Parasitization of three species of mango leafhoppers by Halictophagus sp. (Strepsiptera: Halictophagidae) in the Philippines"
The presence of mango leafhoppers stylopized by Halictophagus sp. on two cultivars was investigated. The density of Idioscopus clypealis was the highest among the three leafhopper species on mango. Aside from the reported I. clypealis, Halictophagus... Read more.PhD in Entomology (University of the Philippines Los Baños)"Participation and payment for forest management in Vietnam: A case study in northwest mountainous region"
This study attempted to evaluate the application of payment for environmental services (PES) scheme for upland farmers in forest management in northwest mountainous region of Vietnam. It also tried to determine the factors affecting the decision of... Read more.MS in Agricultural Economics (University of the Philippines Los Baños)"Physiological, morphological, and agronomic factors affecting water use efficiency of sugarcane"
Four experiments were conducted from August 2007 to November 2009—one greenhouse experiment, one lysimeter study, and two field experiments—to study the relationship among growth, yield, morphology, and water use efficiency of sugarcane... Read more.PhD in Agronomy (University of the Philippines Los Baños)"QTL mapping and marker-assisted backcrossing for developing salinity tolerant rice (Oryza sativa L.)"
The study was carried out to identify quantitative trait loci (QTL) controlling salinity tolerance in rice using molecular markers and to transfer Saltol, a major QTL associated with salinity tolerance, to a mega variety to enhance salt stress... Read more.MS in Plant Breeding (University of the Philippines Los Baños)"Reduction of bacterial leaf blight of rice caused by Xanthomonas oryzae pv. oryzae by its avirulen strains"
Bacterial leaf blight (BLB) caused by Xanthomonas oryzae pv. oryzae is the most devastating bacterial disease of rice worldwide. The feasible control for BLB once it occurs is resistance, where the effective cultivars are limited. There are numerous... Read more.MS in Plant Pathology (Kasetsart University)