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Your search for [author]Opina, Oscar S. returned 10 records. |
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Management studies for the control of legume diseases.
by Opina, Oscar S.; College, Laguna: UPLB, 1981. 27p. -(PCARR Proj. No. 652).
Subject: MUNG BEANS; ARACHIS HYPOGAEA; PLANT DISEASES; PEST CONTROL; FUNGICIDES.
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Disease epidem : a program for computer to simulate disease epidemic...
by Opina, Oscar Siembre, 1946-.; 1973.
Subject: Plant diseases -- Research; Dissertations, Academic -- Philippines.
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Consequences of intensive and sequential cropping on Sclerotium Rolfsii and other pathogens associated with field legumes and sorghum.
by Opina, Oscar S.; 1978.
Subject: Sclerotium rolfsii; Plant diseases; Crop rotation.
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Integrated disease management of anthracnose and stem-end rot of 'carabao' mango.
by Opina, Oscar S.; College, Laguna: Department of Plant Pathology, University of the Philippines Los Baños, 2004.
Subject: Mangoes; Disease control; Anthracnose.
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Papaya ringspot research project; development and evaluation of control/strategies against PRS with emphasis on cross- protection techniques.
by Opina, Oscar S.; College, Laguna: UPLB, 1989. 26p. -(PCARRD-ASSP Funded).
Subject: CARICA PAPAYA; EPIDEMIOLOGY; PEST CONTROL; VECTORS.
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Consequences of intensive and sequential cropping on Sclerotium rolfsii and other pathogens associated with field legumes and sorghum.
by Opina, Oscar S.; College, Laguna: University of the Philippines at Los Ba?os, 1978.
Subject: Plant Pathology; Sclerotium rolfsii -- Field legumes and sorghum cropping -- Pathogens; Organisms, Pathogenic -- Sclerotium rolfsii -- Club Fungus -- Field Legumes and Sorghum.
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Disease Epidem : a program for computer to simulate disease epidemic.
by Opina, Oscar Siembre, 1946-;
Subject: Downy mildew; Electronic data processing -- Plant diseases.
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Consequences of intensive and sequential cropping on Sclerotium rolfsii and other pathogens associated with field legumes and sorghum.
by Opina, Oscar Siembre, 1946-;
Subject: Cropping systems; Fungi, Pathogenic; Legumes -- Diseases and pests -- Philippines; Sorghum -- Diseases and pests -- Philippines.
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Comparative cohort life and reproductivity tables of cerocospora arachidicola hori and phaeoisariopsis personata (Berk. and Curt.) von arx on peanut.
by Paningbatan, Rodolfo A.; PICC, Manila, Philippines: National Academy of Science and Technology, 1990.
Subject: Reproductivity tables; Cohort life; Infection cycles; Papers.
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Standardized indexing methods for evaluation of resistance of rice varieties or hybrids to diseases and pests.
by Olivares, Jr., Florentino M.; [Manila: Government Printing Office, 1974.
Subject: Plant breeding; Rice.
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