ABSTRACTS OF PAPERS Presented during the 41st NAST Annual Scientific Meeting Caring for the Country’s Carrying Capacity 10–11 July 2019 ©2019 National Academy of Science and Technology, Philippines ISSN 0115-8848 Trans. Nat. Acad. Sci. Tech. Philippines Volume 41, Issue No. 1 (2019) Published by: National Academy of Science and Technology Philippines 3rd Level Science Heritage Building DOST Complex, Gen. Santos Avenue Bicutan, Taguig City, Metro Manila 1631 Philippines [email protected] http://www.nast.ph Tel. No.: +632 837 2071 loc. 2170 to 73 Tel/Fax No.: +632 837 3170 Issue Editor: Academician Evelyn Mae Tecson-Mendoza NAST Staff-in Charge: Reihvelle A. Perez Jereme E. Mapa Angelito A. Navarro Janelle R. Reyes 41st NAST ANNUAL SCIENTIFIC MEETING Caring for the Country’s Carrying Capacity 41st ANNUAL SCIENTIFIC MEETING STEERING COMMITTEE ACD. FABIAN M. DAYRIT (Chair) NS LOURDES J. CRUZ NS BIENVENIDO F. NEBRES, S.J. ACD. JOSE MARIA P. BALMACEDA ACD. CHRISTOPHER C. BERNIDO ACD. ERNESTO J. DEL ROSARIO ACD. JOSE O. JULIANO ACD. ALFREDO MAHAR FRANCIS A. LAGMAY ACD. MARCO NEMESIO E. MONTAÑO ACD. APOLINARIO D. NAZAREA ACD. WILLIAM G. PADOLINA ACD. CAESAR A. SALOMA ACD. ARNEL A. SALVADOR ACD. FORTUNATOR B. SEVILLA III ACD. FERNANDO P. SIRINGAN ACD. EVELYN MAE TECSON-MENDOZA ACD. CESAR K. VILLANOY SCIENTIFIC POSTERS COMMITTEE ACD. EVELYN MAE TECSON-MENDOZA (Chair) ACD. RUBEN L. VILLAREAL ACD. VIRGINIA C. CUEVAS ACD. ESTRELLA F. ALABASTRO ACD. EDWARD H.M. WANG ACD. AGNES C. ROLA TABLE OF CONTENTS AGRICULTURAL SCIENCES Page AGRICULTURE AND FORESTRY MANAGEMENT AND PRODUCTION SYSTEMS Analysis of the Willingness to Pay for Charcoal Briquettes of Food Establishments in Los Baños, Laguna, 2018 Johannah Mariz J. Lumanog…………………………………………. 3 Application of Biochars Derived from Agricultural Wastes: An Ecologically Sound Technology that Promises Improvement of Soil Properties and Crop Productivity Gina Villegas-Pangga, Ann Nicole Lasam, Arsenio Bulfa Jr. …... 4 Are We Food Insecure? A Community-based Agricultural Systems Assessment Tool for Food Security Amparo DM. Wagan, Gina V. Pangga, Maria Helen F. Dayo, Leonardo L. Tamisin, Jr.……………………………… ……………… 5 The Philippine Garlic Industry: Knowledge Inventory and Networks Sosima R. Demandante, Criselda M. Balisacan, Carmelo J.Esteban…………………………………………………….. 6 Can VarMix system be an alternative technology for mitigating the effects of biotic and abiotic stresses? Fred Jan A. Francia and Imeldalyn G. Pacada ………………….. 7 Cassava Yield Improvement through Site Specific Nutrient Management Aeron A. Ruazol1, Apolonio M. Ocampo, Lovely Luar, Mirasol Pampolino, Nel Oliver B. Mateo, Ernesto delos Santos, Primitivo Jose A. Santos, Jesse Descalsota, Thomas Oberthur ……………… 8 Co-amendment of Bamboo Biochar, Vermicompost, and Biofertilizer Improved Growth, Nutrients Status, and Soil Biological Components of Cacao (Theobroma cacao L.) Joshua G. Jomao-as, Bernadette C. Mendoza, Noel G. Sabino and Nelly S. Aggangan ………………………………………………... 9 Commelina diffusa Burm. f.: A Certified Weed of Rice Under Saturated Condition Maria Niña S. Cabiao, Jaime R. Quilantang, Ronaldo T. Alberto, and Dindo King M. Donayre……………………………….. 10 Comparative Performance of Commercial and Formulated Plywood Adhesive with Tobacco Particles Additive Juanito P. Jimenez, Jr. ……………………………………………….. 11 Comparing Mustasa (Brassica juncea), pechay (Brassica rapa), and hot peppers (Capsicum frutescens) growth on four hydroponics setup Bless Ira Verganio, Charl M. Ampuan, Judaeo B. Sandoval, Lance A. Castro, Ashley Zane B. Fernandez, Suzzeth Untalan- Dizon…………………………………………………………………….. 12 Decadal Land Use Change Dynamics in the City of Santa Rosa, Laguna, Philippines Roel L. Fucio, Decibel V. Faustino Eslava, Rico C. Ancog, Victorino A. Bato, and Cristino L. Tiburan, Jr. ……………………. 13 Design, Fabrication and Evaluation of a Potato Grader for Village Operation Marvin T. Valentin and Elmar M. Villota…………………………... 14 Ecological Engineering for a Healthy Upland Rice Ecosystem Gina D. Balleras and Leah E. Endonela……………………………. 15 Effect of Different Row Spacing and Fungicide Application on the Growth and Yield Performance of Genetically Modified Corn Darwin S. Villanueva, Mary Ann S. Silvestre, Janet B. Quilang and Samuel R. Simon………………………………………………….. 16 Enhancing Peanut Production through Innovative Water Management Strategies Virgilio Julius P. Manzano Jr., Nathaniel R. Alibuyog, Dionisio S. Bucao, Rodel U. Utrera………………………………..………… 17 Growth Performance of Moluccan sau (Falcataria moluccana (Miq.) Barnaby & J.W. Grimes) as influenced by varying Light Intensities using Various Spectral Filters Arlene Tarranco, Jonalyn Quinan, Dominic Rodriguez & Shierel F. Vallesteros………………………………………………... 18 Impact of Climatic Variations in the Productivity and Yield Performance of Garlic Leticia A. Lutap, Alecsis G. Villarin, Jonathan R. Ramos & Evangeline S. Galacgac…………………………………………….. 19 Impact of Soil and Climatic Conditions on the Phytochemical Property of Livistona rotundifolia Shoot Dionisio S. Bucao, Xenia Elika N. Bucao and Jallene E. Arzaga…………………………………………………………………. 20 Influence of Single Plant Cyperus rotundus L. on Growth and Development of Rice under Continuous Flooded Condition Dindo King M. Donayre, Jobelle S. Bruno, Ailon Oliver P. Capistrano, Anna Ma. Lourdes S. Latonio……………………….. 21 iVeg: A Web Portal for Information About Philippine Indigenous Vegetables Catherine Hazel M. Aguilar, Dan Carlo N. Barrion, Nestor C. Altoveros, Teresita H. Borromeo, Hidelisa D. de Chavez, Lorna E. Sister, Leah E. Endonela, Nina Julia L. Bautista, Christian D. Robillos, Norvie J. dela Cruz and Louis Samuel H. Dizon……………………………………………………………….. 22 Molecular Screening on the Occurrence of the Most Important Pathogens in Organic Fertilizers and Liquid Supplements for a Safe Organic and Sustainable Agriculture Rubigilda Paraguison-Alili, Rose Anne C. Del Pilar and Lani Lou Mar A. Lopez……………………………………………………. 23 Mungbean Performance as Cassava Intercrop and its Differential Contribution to Cassava Performance Ramon Christopher G. Alip, Maria Cielo Paola B. Rodriguez, Alvin Quiel Sabanal and Rodel G. Maghirang…………………... 24 Nutrient Dynamics in Hydroponic Production of Lettuce (Lactuca sativa, L. var. crispa) using Household Greenhouse Module Fredi Jan Francia, Evaristo Abella and Chito Sace…………….. 25 PRISM: A Near Real-Time Monitoring System to Describe the Rice Production Situation of Western Visayas Gerald Bello, Mary Rose Mabalay, Elmer Alosnos, Eduardo Jimmy Quilang, Jovino De Dios, Cielo Luz Mondejar, Cherryl Seville, Caesar Joventino Tado, Rodelyn Caro, Cherry Tayson. 26 Productivity of Sweet Pepper (Capsicum annuum L.) Under Different Balance Fertilization Strategy Angelica T. Mamauag, Cynthia P. Obispo and Samuel R. Simon…………………………………………………………………... 27 Profile analysis on the productivity of coconut (Cocos nucifera L.) for the four climate types in the Philippines Christopher dela Cruz, Consorcia Reaño………………………… 28 Response of Cacao (Theobroma cacao L.) to Biochars from Bamboo and Sugarcane Bagasse, and Biofertilizer Nelly S. Aggangan, Romualdo P. Yecyec, Joshua G. Jomao-as.. 29 Saving Mameng: A Scientific Approach Towards Sustainability Thru NDF Lea Mae S. Dela Cruz, Minerva Fatimae Ventolero and Mudjekeewis D. Santos……………………………………………… 30 Selection of Water Buffalo Bulls by Sperm Nuclear Shape and Relationship to Sperm In Vitro Fertility and Computer Assisted Sperm Analysis Danilda Hufana-Duran, Matt Daniel Peralta, Emma V. Venturina, Fe A. Venturina, Peregrino G. Duran, Felomino V. Mamuad, Hernando V Venturina and John J. Parrish………….. 31 Soil Erosion and Soil Carbon Assessment of an Adlay-based Farming System Rico A. Marin and Michael Arieh P. Medina and Joseph C. 32 Paquit………………………………………………………………….. Unfolding Indigenous Flower Vegetables in the Philippines Christian D. Robillos, Hidelisa D. de Chavez, Norvie J. dela Cruz, Nina Julia L. Bautista, Dan Carlo N. Barrion, Nestor C. Altoveros, Terresita H. Borromeo, Catherine Hazel M. Aguilar, Leah E. Endonela, Renerio P. Gentallan Jr and Lorna E. Sister 33 Utilization of NDVI and Thermal Imaging in Detecting Water-Deficit Stress in Ten High-Yielding Sugarcane Varieties Ana Mikaela B. Maravilla, Eunice M. Renovalles, Arvin S. Carpentero, Erwin P. Quilloy, Primitivo Jose A. Santos, and Evelyn F. Delfin……………………………………………………… 34 Validation and Comparative Yield Trial Using Nutrient Expert for Maize in Corn Production in the Philippines Nel Oliver B. Mateo, Aeron A. Ruazol, Apolonio M. Ocampo, Lovely Luar, Mirasol Pampolino, Ernesto delos Santos, Primitivo Jose A. Santos, Jesse Descalsota, Thomas Oberthur.. 35 Year-Round Performance of Inbred and Hybrid Rice Varieties as Affected by Different Locations and Planting Dates Mario B. Agustin, Quirino D. Dela Cruz, Maribelle P. Astejada, Florida A. Domingo and Veronica A. Cinense………. 36 DISEASES, PEST MANAGEMENT AND CONTROL A Narra leaf endophyte, Bacillus amyloliquefaciens, possesses antifungal activity against phytopathogenic fungi Alternaria sp., Diaporthe sp., and Fusarium oxysporum Raymond Parcon, Margareth Del Isagan, Liezel Atole and Jessica Simbahan……………………………………………………. 37 Application of Citronella Oil and Two Botanical Extracts Against Major Diseases on Mungbean Recelle A. Olmoges and Mellprie B. Marin………………………. 38 Application of Potassium for the Management of Major Diseases on Sweet Corn Kenneth S. Pagutayao and Mellprie B. Marin…………………… 39 Bacillus subtilis for the Control of Damping-Off on Cavendish Banana Plantlets Rafael Jims C. Jariol and Mellprie B. Marin…………………….