Volume 28 No. 2 July – December 2006

Maritess B. Labrador and Teofanes A. Patindol ABSTRACT This study determined the distribution and abundance of avifauna on the foothills of Mount Pangasugan using the standard transect method. A total of 46 avaifaunal species belonging to 12 orders and 27 families with 24% endemism were found in the three selected sites based on habitat types, …

Distribution and abundance of avifauna on the foothills of Mt. Pangasugan, Baybay, Leyte, Philippines Read More »

Julissah C. Evangelio and Bernardita P. Germano ABSTRACT Crustacean eyestalks are known to contain neurosecretory hormones that inhibit molting, growth and gonadal development. Along this framework, this study was conducted to: screen crude eyestalk extracts from the blue crab Portunus pelagicus for possible growth inhibition on two bacterial pathogens Ralstonia solanacearum and Pectobacterium carotovorum subsp. …

Screening of blue crab (Portunus pelagicus L.) eyestalk extracts for growth inhibition of Pectobacterium carotovorum subsp. carotovorum (Hauber et al. 1998) (Erwinia carotovora) Jones (Holland) and Ralstonia solanacearum (Yabuuchi et al. 1995) (Pseudomonas solanacearum) Read More »

P. Nandy (Datta)1, M. Ghose1, R. Spooner-Hart2 and S. Das1 ABSTRACT The Sundarbans forest forms one of the largest mangrove vegetation in the Bengal Basin. The name indicates dominance of the tree species Heritiera fomes Buch. Ham. locally known as ‘Sundari’ because of its elegance. Explosive demographic pressure and indiscriminate exploitation of natural resources caused …

Is Heritiera fomes Buch. Ham. less adapted to the present conditions of the Indian Sundarbans compared to other mangrove species? Read More »

Manas Ranjan Sahoo, Madhumita DasGupta and Archana Mukherjee ABSTRACT The paper describes the abundance status of forests and their species composition in the Mananga-Kotkot-Lusaran Watershed of Metro Cebu, Philippines. Data collection and analysis were undertaken according to the Braun-Blanquet (1964) methodology. Six vegetation types, such as grassland, brushland, pioneer vegetation, young plantation, 60 year old …

Abundance status of flora in Mananga-Kotkot-Lusaran Watersheds, Cebu, Philippines Read More »

Erik-Ray Matthew S. Palomar1,2 and Rotacio S. Gravoso2 ABSTRACT Working with the faculty of Plant Protection, a video-mediated learner-centered learning environment was designed, implemented, and evaluated in a PPrt 21 (Principles of Plant Protection) class. Students’ learning outcomes, measured in terms of conceptual understanding and knowledge transfer, were compared with students in the control group …

Effects of a video-mediated student-centered learning environment on students’ understanding of plant pathology principles Read More »

Berta C. Ratilla1 and Rodolfo G. Escalada2 ABSTRACT Three species of legumes such as mungbean, cowpea, and bushbean were incorporated into the soil at flowering to later stages of growth namely; after 1st, 2nd, and 3rd priming operations. These were followed by two croppings of upland rice. Significantly lower soil bulk densities were obtained after …

Time of incorporation of field legume herbage and its influence on the growth and yield of upland rice Read More »

Manas Ranjan Sahoo, Madhumita DasGupta and Archana Mukherjee ABSTRACT Taro hybrid TSL (Topi X Satasankha), along with its parental lines, was evaluated for stress tolerance under in vitro and in vivo polyethelene glycol (PEG) – mediated osmotic stress conditions. A septic cultures were raised in vitro under control and PEG – mediated stress conditions. Stress …

Effect of in vitro and in vivo induction of polyethelene glycol-mediated osmotic stress on hybrid taro (Colocasia esculenta (L.) Schott) Read More »