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Journal Articles
The USM Research and Development Journal in review:1990/1994-96  MR Tan and NG Tangonan
USM R and D Journal 4(3), 84-95, 1996
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Phytopathological note: etiology of white root rot of rubber NG Tangonan, FA Sebastian, and FD Cuambot
USM R and D Journal 4(1), 9-12, 1996
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Leaf blight of star apple caused by Curvularia lunata AG Mercado and NG Tangonan
USM R and D Journal 4(1), 71-72, 1996
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Research profile of four colleges and one institute in the University of Southern Mindanao, Kabacan, Cotabato, Philippines:1990-1995/1997 NG Tangonan and MR Tan
USM R and D Journal 3(2), 198-218, 1995
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The perennial trees and shrubs in the University of Southern Mindanao, Kabacan, Cotabato, Philippines: circa 1995 NG Tangonan
USM CA Research Journal 6(1), 1-3, 1995
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New records of plant diseases in North Cotabato, South Cotabato, and Davao provinces: 1992-1995 NG Tangonan and JH Millana
USM R and D Journal 3(1), 1-3, 1995
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Crown rot of kamantigue caused by Rhizoctonia solani EH Natoc and NG Tangonan
Philippine Phytopathology 31(1), 52-53, 1995
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Philippine Seed Board recommends high yielding and downy mildew resistant corn varieties developed at USM, Kabacan, Cotabato FR Alejandro and NG Tangonan
Philippine Phytopathology 30(2), 100-110, 1994
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Studies on biological control of plant diseases in the University of Southern Mindanao, Kabacan, Cotabato, Philippines: 1978-1994 NG Tangonan and EH Natoc
USM R and D Journal 2, 189-200, 1994
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Phytopathological Note: Incidence of two new fungal leaf diseases of kalachuchi (Plumeria acuminata Ait.) MD Roble and NG Tangonan
Philippine Phytopathology 30(2), 118-121, 1994
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Sorghum R and D at USMARC, Philippines FR Alejandro and NG Tangonan
International Sorghum and Millets No. 35 , 74, 1994
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The perennial trees and shrubs in the University of Southern Mindanao, Kabacan, Cotabato, Philippines: circa 1994 NG Tangonan
USM CA Research Journal 5, 124-128, 1994
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New foliar disease on peanut at USMARC noted NG Tangonan
USM CA Research Journal 4(2), 214, 1993
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Incidence of knob gall disease in immature rubber NG Tangonan, PR Miral, RB Evangelista, and AV Garcia
USM CA Research Journal 4(1), 135-138, 1993
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Fungicidal property of Tagetes crude extract against ten fungal plant pathogens LB Gotoman, EM Jover, and NG Tangonan
USM CA Research Journal 4(2), 153-162, 1993
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Etiology of rubber stem bleeding at USMARC LM Balmores, EM Jover, and NG Tangonan
USM CA Research Journal 3, 53-57, 1992
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A review of the University of Southern Mindanao's primary scientific publication/s: 1968 to 1991 NG Tangonan
USM CA Research Journal 3, 88-104, 1992
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Identification of castor bean (Ricinus communis) diseases NA Mondero, RB Evangelista, NG Tangonan, and RB Baltazar
USM CA Research Journal 2, 61-64, 1991
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Some variations in three isolates of Phytophthora palmivora Butler causing black pod rot of cacao JH Nitafan, IC Tandingan, and NG Tangonan
USM CA Research Journal 2, 74-88, 1991
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Effect of paclobutrazol (Cultar 25 EC) on yield of calamansi (Citrus madurensis) NG Tangonan, RB Rondon, F Punzalan, Atienzar AL, Miral PR, and JA Arguelles
USM CA Research Journal 2, 48-58, 1991
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A review of rubber disease management and/or control measures NG Tangonan
Rubber Production and Management Book Series No. 1 , 51-56, 1990
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Reaction of 31 nonsenescent genotypes to stalk rot complex in Southern Philippines CC Evangelista and NG Tangonan
Tropical Pest Management 36(3), 214-215, 1990
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Incidence and chemical control of pink disease of citrus caused by Corticium salmonicolor B. & Br. IC Noble Jr., JC Silvestre, and NG Tangonan
USM CA Research Journal 1, 174-181, 1990
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Efficacy of six fungicides against brown rot gummosis of calamansi (Citrus madurensis) GC Godoy and NG Tangonan
USM CA Research Journal 1, 120-124, 1990
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Trichoderma sp. as biological control against Sclerotium rolfsii causing damping-off in cotton (Gossypium hirsutum L.) seedlings LB Sollorin and NG Tangonan
USM CA Research Journal 1, 181-185, 1990
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54 journals, 32 conferences, 10 books, 16 societies, 28 awards
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