Scientist Profile

Photo

Beatriz L. Mercado

Plant Physiologist, Outstanding Achievement Award in Weed Science (1977)

Expertise: Agricultural Botany, Plant Physiology

Dr. Beatriz Mercado is recognized Betty, as she was known to many of her friends and classmates, was a lifelong resident of Los Baños. The eldest of three children, she attended Lopez Elementary School and UP Rural High School (where she graduated valedictorian of the Girls Curriculum in 1956) prior to entering the UP College of Agriculture where she earned her BS in Agriculture, major in Agricultural Botany degree, cum laude, in 1960. After teaching at her alma mater for 2 years, she was accepted for graduate studies at the University of Iowa, where as a Fulbright scholar, she finished her Ph.D. in Plant Physiology in 1966. After a stint doing post-doctoral work and traveling in the United States, she returned to Los Baños in 1968. It was there that she met Dr. Bonifacio T. Mercado (B.S. Agriculture, major in Agricultural Botany, 1959), and they were married in 1969. Together, they had five children, all of whom became UP Los Baños alumni themselves: Ramil Marcelo (B.S. Chemistry 91), Heidi Daniella (B.S. Economics 96, MS Development Communication 2005), Enrico Francisco (B.S. Biology 98), Paulo Bien (B.S. Animal Science 2000, Doctor of Veterinary Medicine 2004) and Lean Mamerto (B.S. Agricultural Chemistry 2007). It was a family that grew up with Cyperus rotundus, Rottboellia exaltata and 2,4-D. Even as her family grew, Betty became one of the country’s pioneers in the field of Weed Science. She was active in the Weed Science Society of the Philippines (WSSP), and the Pest Control Council of the Philippines (PCCP), presenting numerous papers at its annual meetings and garnering best paper awards in . She served as the WSSP Secretary and President. She served on the National Crop Protection Council, and was instrumental in the establishment of the National Crop Protection Center, one of the national centers of excellence established on campus when UPLB became a fully autonomous unit of the UP System. At the College of Agriculture, she rose through the ranks from Assistant Professor, then becoming a full Professor in 1985. Along the way, she taught classes and mentored a number of Filipino and foreign M.S. and Ph.D. students, many of whom have become renowned leaders in Weed Science themselves. For her excellence, passion and effort in academia, she was honored by the college with the Best Teacher Award in 1982. Her collective research culminated in the publication of a book, “Introduction to Weed Science,” in 1986, by the Southeast Asian Regional Council for Graduate Study and research in Agriculture (SEARCA), a book that is still in use. In addition to her academic duties, she also served as Editor-in-Chief of the Philippine Agriculturist (now known as The Philippine Agricultural Scientist), the preeminent journal for Agricultural Sciences in the country and in Southeast Asia. In 1983, she became President of the Asia-Pacific Weed Science Society (APWSS), which led to the Philippines hosting the annual conference in 1984. At the pinnacle of her career, she was honored by the Weed Science Society of America with an honorary membership in 1986, in a ceremony conducted in Houston, Texas. Betty passed away in 1988, after battling cancer. Through her career, she maintained her friendships with many of her classmates and colleagues. A quintessential scientist and teacher, she instilled the love of research and learning in her students and in her children.

Affiliation

Scientist, UP Los Banos,College, Los Banos Laguna

Association

    • International Weed Science Society, Member
    • Pest Control Council of the Phillipines, Member
    • Pest Control Council of the Phillipines, Vice-Pres.
    • Sigma Xi, Member
    • American Society of Plant Physiologists, Member
    • Gamma Sigma Delta, Member
    • Gamma Sigma Delta, Pres.
    • Phi Kappa Phi, Member
    • Phi Sigma, Member
    • Asian Pacific Weed Science Society, Member
    • Asian Pacific Weed Science Society, Vice-Pres.
    • Weed Science Society for the Phil., Member
    • Society for the Advancement of Research, Member

Employment

    • UPLB, Profeesor, 1981
    • UPLB, Associate Professor III, 1976 - 1981
    • UPLB, Assistant Professor, 1968 - 1976
    • University of Iowa, Post-Doctoral Residence Associate, 1967 - 1968
    • UPLB-CA, Research Instructor, 1963 - 1964
    • UPLB-CA, Research Assistant, 1962 - 1963

Award

    • Pest Management Award, PCCP, 1982
    • Distinguished Teacher Award in Biological Science, UPLB, 1982
    • Distinguished Alumnus Achievemnet Award, UPRHS, 1981
    • Special Achievement Award, UPLB-CA, 1981
    • Graduate Research Fellowship , UPLBCA, 1960
    • Cum laude B.S. Agriculture, UPLB-CA, 1960
    • Outstanding Achievement Award in Weed Science, USSP, 1977
    • Professional Chair in Weed science, SEARCA, 1974-1976
    • Fellowship Award, University of Iowa,Fulbright Hays, 1964-1967
    • All Nations Woman's Group Scholarship Award, College and university, 1959-1960
    • Scholarship, UP, 1956-1960

Papers Presented

    • Morphological and physiological response of rice to trifluralin., 2nd Asian Pacific Weed Control Interchange College,Laguna
    • Weed control in vegetables., 1st National Agricultural System Research Congress Los Banos Laguna
    • Growth behaviour of Scirpus maritimus., 5th Asian-Pacific Weed Science Society Conference, Tokyo
    • Biology of Paspalum distichum.Growth behavior and competition with rice., 8th National Conference,Pest Control Council of the Philippines Bacolod,City
    • Competitive ability of Echinochloa clonum against direct seeded lowland rice., 6th Asian Pacific Weed Science Society Conference Jakarta
    • Photosynthesis and the effect of photosynthetic inhibitors on water hyacinth(Eichhornia crassipes Solms.), 9th Asian-Pacific Wedd Science Society Conference
    • Mode of action of herbicides for weed control in rice and sugarcane., Symposium on Weed Control in Tropical Crops Manila
    • Ecotypes of Rottboellia in the Philippines., 7th Asian Pacific Weed Science Society Conference

Publication

    • Mercado,B.L.,Muir,R.M., (1967) Isolation and properties of the enyzmes forming indoleacetic acid.
    • Plant Physiology Volume 42:
    • Mercado,B.L.,Baltazar,A.M.,Sierra,J.N., (1970) Morphological and physiological responses of crops and weeds to trifluralin.Phsiological Responses of mung bean.
    • Philippine Agriculturist Volume 53(10):
    • Mercado,B.L.,Muir,R.M., (1969) Auxin physiology of dwarfism in Pisum sativum.
    • Physiology Plant Volume 22:
    • Muir,R.M.,Mercado,B.L., (1968) Purification and properties of the enzyme forming indoleacetic acid.
    • Physiology and Biochemistry of Growth Regulation
    • Mercado,B.L.,Talatala,R.L.,Baltazar,A.M., (1970) Morphological and physiological responses of crops and weeds to trifluralin.I.On the nature of the resistance of Ipomoea triloba.
    • Philippine Agriculturist Volume 53(8-9):
    • Mercado,B.L.,Sierra,J.N., (1970) Respiration in resistant and susceptible seedling treated with trifluralin.
    • Philippine Agriculturist Volume 54(3-4):
    • Mercado,B.L.,Malabayabas,C., (1970) Response of some upland rice varieties to NaCI at the seedling stage.
    • Philippine Agriculturist Volume 53(8-9):
    • Mercado,B.L.,Talatala,R.L., (1971) Morphological and physiologicalresponse of crops and weeds to trifluralin.Anatomic effects of trifluralin on the root of rice(Oryza sative)
    • Philippine Agriculturist Volume 54(7-8):
    • Mercado,B.L.,Baltazar,A.M., (1971) Morphological and physiological response of crops and weeds to trifluralin.Amino acids trifluralin interaction in mung bean(Phaseolus aureus)
    • Philippine Agriculturist Volume 54(7-8):
    • Mercado,B.L.,Robles,R.P., (1971) Morphological and physiological response of crops and weeds to trifluralin.Amylase activity in rice seedlings.
    • Philippine Agriculturist Volume 55(5-6):
    • Lapade,B.E.,Mercado,B.L., (1971) Morphological and physiological responses of crops and weeds to trifluralin.Free amino acid content of the rice seedlings.
    • Philippine Agriculturist Volume 55(5-6):
    • Begonia,G.B.,Mercado,B.L.,Robles,R.P., (1971) Morphological and physiological response of crops and weeds to trifluralin.Influence of peroxidase activity.
    • Philippine Agriculturist Volume 55(5-6):
    • Mercado,B.L.,Malabayabas,C.A.,Escuro,P.B., Obias,R.,Escobar,C.,Villegas,F., (1971) Observations on some saline lowland rice fields of Camarines Sur.
    • Philippine Agriculturist Volume 54(7-8):
    • Mercado.B.L.,Malabayabas,C.,Gumasing,S., (1971) Response of some lowland weed species to salinity.Scirpus maritimus to sodium chloride.
    • Philippine Agriculturist Volume 55(5-6):
    • Lubigan,R.T.,Mercado,B.L., (1974) Competition of rice with different densities of Scirpus maritimus.
    • Philippine Weed Science Bulletin Volume 1(2):
    • Mercado,B.L.,Sierra,J.N.,Begonia,G.B., (1974) Control of Cyperus rotundus with 2(a-nalphthoxy)N-N-diethylpropionamide.
    • Philippine Weed Science Bulletin Volume 1:
    • Pamplona,P.P.,Mercado,B.L., (1974) Dormancy and germination of Rottboellia exaltata.
    • Philippine Journal of Science Volume 103(4):
    • Mercado,B.L.,Baltazar,A.M., (1974) Effect of trifluralin on sugar in rice seedlings.
    • Philippine Journal of Science Volume 103(2):
    • Mercado,B.L.,Talatala,R.L., (1974) Morphological response of rice seedlings to dinitroxylidine herbicides.
    • Philippine Journal of Science Volume 103(3):
    • Mercado,B.L.,Kim,Kil-Ung., (1974) Physiological responses of rice to ICE-styrene.
    • Philippine Journal of Science Volume 103(2):
    • Guantes,M.M.,Mercado,B.L., (1975) Competition of Cyperus rotundus L.Echinochloa colonum Link and trianthema portulacastrum with cotton.
    • Philippine Agriculturist Volume 59(5-6):
    • Mercado,B.L.,Baltazar,A.M., (1975) Influence of atrazine on the protein content and nitrate reductase activity of corn.
    • NRCP Research Bulletin Volume 30(1):
    • Bua-ngam,T.,Mercado,B.L., (1975) Life cycle of Pistia stratiotes.
    • Philippine Weed Science Bulletin Volume 2:
    • Mercado,B.L.,Rejesus,B.M.,Adalla,C.B., (1975) Pesticide information manual.
    • UPLB College of Agriculture
    • Bua-Ngam,T.,Mercado,B.L., (1976) Competition of water lettuce(Pistia stratiotes)with rice and commonly associated weed species.
    • Philippine Agriculturist Volume 60(1-2):
    • Mercado,B.L., (1976) Morphology and anatomy of Eleocharis dulcis(Burm.f.)Trin.Youngyuth Osotsapar.
    • Philippine Journal of Biology Volume 5(3):
    • Mercado,B.L., (1976) Some properties of the inhibitor from Rottboellia exalta seed.
    • Philippine Weed Science Bulletin Volume 3:
    • Mercado,B.L.,Manuel,J.S., (1977) Biology of Paspalum distichum.Pattern of growth and asexual reproduction.
    • Philippine Agriculturist Volume 61(5-6):
    • Mercado,B.L.,Manuel,J.S., (1977) Biology of Rottboellia exalta Characterization of the inhibitory activity.
    • NRCP Research Bulletin Volume 32(1):
    • Lubigan,R.T.,Mercado,B.L., (1977) Chemical control of Scirpus maritimus and mixed maritimus Echinochloa crusgalli populations in lowland transplanted rice.
    • Philippine Agriculturist Volume 60(7-8):
    • Mercado,B.L.,Sierra,J.N., (1977) Laboratory manual on tropical weed biology.
    • UPLB College of Agriculture
    • Bua-ngam,T.,Mercado,B.L., (1977) Response of Pistia stratiotes to selective and non-selective herbicides.
    • Philippine Weed Science Bulletin Volume 4:
    • Mercado,B.L., (1978) Biology problems and control of Rottboellia exaltata: a monograph.
    • BIOTROP Bulletin Volume 14:
    • Mercado,B.L.,Begonia,G.B., (1978) Influence of napropamide and butralin on the incidence of sclerotium damping-off in tomato.
    • Philippine Journal of Weed Science 5 Volume 5:
    • Mercado,B.L., (1979) Biology,problems and control of Eichhornia crassipes Solms:a monograph.
    • BIOTROP Bulletin Volume 16:
    • Muangsombut,E.C.,Mercado,B.L., (1979) Decreased incidence of Rhizoctonia damping-off in copwea by trifluralin treatment.
    • Philippine Agriculturist Volume 62(3);
    • Mercado,B.L., (1979) Introduction to weed science.
    • SEARCA
    • Mercado,B.L., (1979) Monograph of Cyperus rotundus.
    • BIOTROP Bulletin Volume 15:
    • Mercado,B.L., (1979) Weeds agricultural production.
    • NRCP Bulletin Volume 72:
    • Mercado,B.L., (1980) Development of locally-suited techniques for the bioassay of herbicides in the soil.
    • NRCP Bulletin Volume 35(1):
    • Noriel,L.M.,Merado,B.L., (1980) Napropamide activity against Cyperus rotundus as affected by sprouting stage,time of application depth of planting and moisture level.
    • Philippine Journal of weed Science Volume 7:
    • Ali,M., Mercado, B.L., (1980) Use of naphthalic anhydride as an antidotes to improve herbicide selectivity in sorghum.
    • Philippine Journal of Weed Science Volume 7:
    • Mercado,B.L.,Radanachaless,T., (1980) Weed population in rice tomato and rice mungbean multiple cropping pattern.
    • Philippine Agriculturist Volume 63(1):
    • Mercado,B.L., (1980) Weeds and herbicides use in rice.
    • Development in Pest Management in the Philippines
    • Merado,B.L., Pamplona, P.P., (1981) Ecotypes of Rottboellia exaltata in the Philippines. Charateristics and dormancy of seeds.
    • Philippine Agriculturist Volume 64(1):
    • Pamplona,P.P.,Mercado,B.L., (1981) Ecotypes of Rottboellia exaltata in the Philippines.Response to daylenght and nitrogen application.
    • Philippine Agriculturist Volume 64(4):
    • Mercado,B.L.,Robes,R.P., (1982) Utilization of the aquatic weed,water lettuce.
    • NRCP Research Bulletin Volume 37(1):

Trainings

    • Post-Doctoral Training, 1967 - 1968