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Database of Abstracts of Theses and Dissertations of SEAMEO SEARCA Scholars
Showing 1311–1320 of 1,541 records
"Pathogenicity and Host Range Studies of Helicotylenchus dihystera and Xiphinema insigne Associated with Sugarcane (Saccharum officinarum L.)"
Height of sugarcane variety Phil 56226 grown in 4,500 cc of potted baked soil was reduced by 7 percent within 18 weeks and 8.4 percent within 20 weeks when inoculated with 2,000 Helicotylenchus dihystera as compared with the control. At this... Read more.MS in Plant Pathology (University of the Philippines Los Baños)"Performance of Dairy Cows Fed Trace Minerals in Three Roughage Feeding Schemes"
Ninety crossbred (Holstein x Red Sindhi) cows which were 1-60, 61-180, and 181 days up into their lactation were assigned to one of two trace mineral supplementation levels (with or without), and one of three roughage feeding schemes (corn silage... Read more.PhD in Animal Science (University of the Philippines Los Baños)"Population Changes of Reniform and Root-knot Nematodes on Selected Crops and their Effect on Crop Yields"
Among the susceptible crops grown in farmers' fields, R. reniformis and M. incognita populations were relatively low and changed only slightly during the first six (for the former) or eight (for the latter) weeks of cropping, then drastically... Read more.MS in Plant Pathology (University of the Philippines Los Baños)"Properties of Wood Adhesives Extended with Sweet Potato and Cassava Flours in Kamlupit (Terminalia Microcarpa Decne) Plywood"
Sweet potato and cassava flours were tried as extenders for urea and phenol formaldehyde adhesives. Properties of the adhesives were compared with those extended with wheat flour, a common extender in synthetic resin adhesives used to reduce its... Read more.MS in Wood Science and Technology (University of the Philippines Los Baños)"Rice Farmers Perception of and Attitude Toward Agricultural Extension Work and their Adoption or Recommended Farm Practices in South Sulawesi, Indonesia"
The study generally aimed to determine the rice farmers' perception of and attitude toward some aspects of extension work and their adoption of recommended farm practices. Respondents were 144 rice farmers in rice farmers' group in... Read more.MS in Agricultural Extension (University of the Philippines Los Baños)"Segregation Pattern of Peroxidase Isozymes in Three Oryza Species: Sativa, Nivara, and Rufipogon"
The segregation pattern of peroxidase isozymes was studies in two wild rice species, namely: Oryza nivara and O. rufipogon, and in hybrid populations in their crosses with cultivated rice O. sativa using polyacrylamide disc gel electrophoresis. Eight... Read more.MS in Agronomy (University of the Philippines Los Baños)"Stochastic Production Function and Estimating Risk in Rice Production"
Risk is primarily defined as variability of outcome in conjunction of risk measurement to functional form of an estimation technique for the production function. Specifically, the effect of nitrogen input on the probability distribution of rice yield... Read more.MS in Statistics (University of the Philippines Los Baños)"The Effect of Growth Regulators, Nutrition, and Media on Growth of Mangosteen Seedling"
The effect of different growth regulators (GA3 250 ppm, IBA 50 ppm, 100 ppm, 300 ppm, NAA 50 ppm, 100 ppm, 300 ppm, Vitamin A1 2 ppm, and Hormex 3 ppm), nutrients (nitrogen, boron, and calcium), and growing media (sand, sandy loom, perlite... Read more.MS in Horticulture (University of the Philippines Los Baños)"The Effect of Indonesian Selective Cutting (TPI) on the Structure and Regeneration of Lowland Tropical Dipterocarp Forests in East Kalimantan, Indonesia"
The effects of Indonesian selective cutting (TPI) on the structure and regeneration of lowland tropical dipterocarp forest in East Kalimantan, Indonesia were studied. The study was conducted in Georgia Pacific Concession areas in East Kalimantan... Read more.PhD in Forest Resources Management (University of the Philippines Los Baños)"The Effect of Some Morphological Characters of Selected Cotton Strains on Cotton Bollworm, Helicoverpa Armigera Hubner"
The effectsof hirsute, glabrous, glandless, glanded, nectaried, and nectariless characters of six selected cotton strains on Helicoverpa armigera were tested under laboratory, cage, and field conditions. In the laboratory, H. armigera moths... Read more.MS in Entomology (University of the Philippines Los Baños)