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Database of Abstracts of Theses and Dissertations of SEAMEO SEARCA Scholars
Showing 1401–1410 of 1,513 records
"Nematicidal Properties of Some Root Extracts on Meloidogyne incognita"
Root extracts of 17 plant species were tested against Meloidogyne incognita Chitwood to assess their nematicidal properties. Results indicated promising effectiveness of 11 of these species, namely: Tagetes erecia, Chromolaena odorata... Read more.MS (University of the Philippines Los Baños)"Osmotic Adjustment and Carboxylase Enzymes Activities of Three Rice Cultivars as Influenced by NaCl Levels"
Three rice cultivars, C4-63G, PB76-TB188 and IR8, were grown in sodium and chloride content, cell sap concentration, and activity of RuDP and PEP carboxylase. Results showed that plant height, root length, number of tillers, and fresh and... Read more.PhD in Plant Nutrition (University of the Philippines Los Baños)"Pathogenicity of Aspergillus parasiticus Speare on Sugarcane Mealybug, Sacchariococcus sacchari Cockerell"
Experiments were conducted to determine the cultural characteristics and pathogenicity of A. parasiticus on sugarcane mealybug and mice. Glucose or fructose and yeast extract were observed to enhance the growth and sporulation of the... Read more.MS (University of the Philippines Los Baños)"Physiological and Biochemical Approaches in the Selection of Sugarcane Varieties under Different Fertility Levels"
Five sugarcane varieties, namely, CAC 5711, Co 785, F 156, Phil 56226 and Phil 62120, were grown under field conditions at different fertility levels to determine the in vivo nitrate reductase activity (NRA), total TVD leaf nitrogen content... Read more.PhD (University of the Philippines Los Baños)"Production Planning in a Plywood Plant by Linear Programming Reasearch Problem"
The study dealt with production planning by linear programming in a plywood manufacturing plant. The objective was to minimize the cost of production subject to demand, production capacity, inventory capacity and technology requirements. ... Read more.MS (University of the Philippines Los Baños)"Release of Potassium and Magnesium from Some Philippine Soils"
A greenhouse experiment was conducted primarily to assess the supplying capacity of K and Mg of five soils from different sugarcane plantations and to determine the effect of K and Mg fertilizers on the growth and dry matter yield of guinea... Read more.MS (University of the Philippines Los Baños)"Sampling Methods and Specifications for Different Tree-Size Stands"
six sampling methods were studied to compare their accurancy for estimating stand volumes and their efficiency based on size of variance and time spent in the field measurement. Three fixed-area- -plot (FA) and three variable-area-plot or pint... Read more.MS (University of the Philippines Los Baños)"Some Morphological Characteristics of Sugarcane Plant Associated with Fertilization Responses."
A 10-month experiment was conducted on ten sugarcane varieties under four fertilization levels to determine important morphological and physiological characters and their relation to sugar yield and its various components. Plots were laid... Read more.MS (University of the Philippines Los Baños)"Structural Changes in Rice Supply of Farmers in the Philippines"
The study aimed to test for possible changes in the response patterns of rice farmers to price fluctuations resulting from the closing of available frontier areas, together with rice technology improvements during the recent years. Statistical... Read more.MS (University of the Philippines Los Baños)"The Interaction of Fiber Type, Resin Solid and Wax Content on the Quality of Multi-functional Fiber-Overlaid Plywood ."
The mechanical properties of fiber-overlaid plywood panels made of different types of fiber mats from sugarcane bagasse, rice straw and kaatoan bangkal were determined by subjecting them to varying levels of resin and wax contents. A total of... Read more.MS (University of the Philippines Los Baños)