Volume 31 No. 2 July – December 2009

Niel Anthony C. Rusia and Rotacio S. Gravoso ABSTRACT Interviews with 23 massively multiplayer online role-playing games (MMORPGs) addicts revealed that they were addicted to the games because they lacked worthwhile activities, MMORPGs offer online game features and deep online experience, they were interested in technological trends and gained personal satisfaction from playing MMORPGs, and …

Conditions leading to addiction and avoidance of massively multiplayer online role playing games (MMORPGs) among game addicts Read More »

Anabella B. Tulin ABSTRACT The high demand for yam as food and for industry calls for the development of new technologies and innovations that will increase yam production. This study was conducted to assess the effects of the addition of different levels of micronutrient fertilizers (Biozome-200 micronutrient soil conditioner) to NPK fertilizers on the growth …

Improvement of the growth, yield, and tuber quality of purple yam through macro and micronutrient fertilization Read More »

Victor B. Asio1, Reinhold Jahn2, Federico O. Perez3, Ian A. Navarrete4 and Sergio M. Abit Jr.1 ABSTRACT The paper reviews the available information on soil degradation which is a major agricultural and environmental problem in the Philippines. Soil erosion appears to be the most widespread process of soil degradation and is also the most studied. …

A review of soil degradation in the Philippines Read More »

Editha G. Cagasan1 and Ma. Theresa H. Velasco2 ABSTRACT Monitoring of the impacts of the Techno Gabay Program (TGP) using the most significant change (MSC) technique was done for one year in nine Techno Gabay (TG) centers in Eastern Visayas, Philippines. Field technicians of the TG centers were trained on how to collect and select …

Impacts of the Techno Gabay Program in Eastern Visayas, Philippines as revealed by stakeholders’ stories of significant change Read More »

Erlinda A. Vasquez1,2,5, Dietmar Schmidt2, Claus Peter Zebitz1, Uwe Beifuss2, Iris Klaiber2, Jurgen Kroschel3 and Remberto Patindol4 ABSTRACT Structure-activity and species specificity of the three synthetic sweetpotato weevil pheromones, (Z)-3-dodecenyl-(E)-2-butenoate of C. formicarius, dodecenyl-(E)-2-butenoate of C. brunneus and decyl-(E)-2-butenoate C. puncticollis and their corresponding precursor free alcohols and trans-crotonic acid were assayed on virgin males …

Sweetpotato weevil pheromones and their precursors: Dose-response and structure-activity relationship in Cylas formicarius Fabr., Cylas brunneus Olivier and Cylas puncticollis Boheman Read More »

Maylin Pérez-Bernal, Magalis Delgado Rigo, Carlos Alberto Hernández Diaz, María Teresa Barceló Avila2 and Raúl Armas Ramos 2 ABSTRACT Most of Cuban rice cultivars are classified into indica subspecies, and they are inclined to poor in vitro response. In this paper were studied the role of endosperm and amino acids on callus formation of two …

Callus induction and plant regeneration of two Cuban rice cultivars using different seed explants and amino acid supplements Read More »