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SINGULAR GRAPHS: THE SUM OF TWO GRAPHS Severino V Gen,acio .. .. .. .... .... .. .... .. .... .. .......... .... .. .. .. .... .... ...... ..... ... 107
IMAGING 2-D OBJECI'S HAVING FRACf AL EDGES: CHARACTERISTICS
.
Cesar Saloma and Gemma Narisma . .. . ... . ..... .... ....... ..... ..... ..... .... .. ... 115
CLONING AND CHARACfERIZATION OF SUCROSE SYNTHASE eDNA fROM RICE SEED William J. Odegard and Benito 0. De Lumen . . .... .... ..... ....... ... .. ... .. .. 123
CONS'IRUCfiON OF ALL CAYLEY ALGEBRAS OF ORDER 2r BY THE ZSM PROCESS Raoul E. Cawagas ... ... . ...... ... .... ... .... .............. ........... .... ............ ...... 133
MORPHO-IDSTOCHEMICAL STUDiES OF COMMONLY USED MEDICINAL PLANTS IN BUK.IDNON Luzviminda Canton Gurrea . . . . .... .... .. .. .... ...... .... ..... ......... ..... ...... ..... 153
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BIOLOGI CAL SCIENCES
BIODECONT AMINA TION OF MERCURY, LEAD AND D. CADMIUM BY SELECfED STRAINS OF RillZOBIUM Juanita C. Mamaril, Este/a T. Paner and Lore/e C. Trinidad . ... . . . . .. 163
TilE PARACALE MINES AND ITS ENVIRONMENT- AN ASSESSMENT OF ITS BIOLOGICAL AND PHYSICOCHEMICAL CHARACfERS Virginia S. Carino, Arsenio A. Casauay, Henry I. Rivero and Erlito Dr. Tandoc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . 179
IMP ACT OF ACUTE COPPER INTOXICATION OF SOME ORGANS OF CI.ARJAS MACROCJ:.:'PHAWS GUNTiffiR Annabelle A. Herrera and Cymhe/ine Perez . . . . . . .. . . . . . . . . . . . . . . . . .. .. . . . . . . . . 195
OCCURRENCE OF ROOT KNOT NEMATODES IN PERENNIAL AND UNUSUAL PLANTS AND THEIR CONTROL USING BACfERIA C.P. Madamba, N.C. Sevilla, MT. Alcasid, N.P. Caceres, E.N. Camaya and D. B. Zenarosa . . . . . . . . . . . . . . . . . . . . . . . . . . .... 209
GENETIC ANALYSIS OF ACANTHAMOEBA SPP. ISOLATED FROM DIFFERENT GEOGRAPHIC REGIONS OF THE PHILIPPINES E. V Queano, FF Natividad, R.R. Matias and G.L. Enriquez . . . . . . . '117
MYCORRHIZ4 INOCULATION AND NITROGEN FERTILIZER IN VOLCANIC ASH
Dominador G. Gonzal and Loretto U. De La Cruz ............................ 281
BIOLOGICAL CONTROL OF GOOSEWEED (SPHENOCLEA ZE YLANICA GAER1N.) WITH AN ALTERNARIA SP.
M.O. Mabbayad and A.K. Watson ..................................................... 289
TRANSFORMATION OF INDICA AND JAPONICA RICES AT IRRI USING MARKER AND AGRONOMICALLY-IMPORTANT GENES
F.J. Zapata, E.M. Abrigo, N.P. Oliva, M.F. A/am, C. Y. Wu, S. Zhang, J. Bennett and T Okita .... ... .. .. ........... ................ 'NJ
EFFECT OF GAMMA-RAY IRRADIATION ON THE REGENERATION OF BUDS AND PLANTLETS FROM
HAPLOID AND DIPLOID CALLI IN NICOTIANA SPECIES
L.P. Balito, K. Hattori and Y. Futsuhara .................... ......... . ..... ....... 313
ANALYZING THE MONOCYCLIC PROCESS IN SHEATH BLIGHT OF RICE UNDER SEMI-CONTROLLED CONDITIONS R.M. Leano, D.B. Lapis and S. Savary ............ ................................ ..
HEAL Til SCIENCES
PROTEIN AND DNA ANALYSIS FOR IDENTIFICATION OF HEMOGLOBIN VARIANTS
Gilda C. Rivero, Remedios R. Roderos and Ernelea P. Cao .... .... ..... 359
THE POLYCYCLIC AROMA TIC HYDROCARBON PROFILE OF POLLUTED AIR IN METRO MANILA Matsushita, K. Tanabe, M. Koyano, E. Guantes, Seo Byung Soo, J. Laquindanum and C. Y. Lim-Sylianco ....... ... .. ..... . ..... . .. .. .. .. . .. .. .. .. .. . 377
Victor B. Amoroso, F.M. Acma and H.P. Pava ..... ............................. 395
CRUSTACEAN PARASITE FROM PHILIPPINE FISHES: A REVIEW Nellie C. Lopez................................................................................... 396
GOLDEN APPLE SNAIL: AN ABSTRACf BffiLIOGRAPHY 1981-1992
Melodia R. Cariaso. M.D. Ebuenga, A. V. De Lara and B. F. Cayabyab .................... .. ............ ......................................... 396
A SURVEY OF TilE RHOPALOCERA (LEPIOOPTERA) OF MT. MAKILING
Bonifacio F. Cayabyab, CR. Baltaza�. F.F. Sanchez, N.O. Aguilar
and A. W Tejada ................................................................................. 397
EcrOMYCORRHIZAL FUNGI ASSOCIATED wrrn DIPTEROCARPS IN MT. MAKILING
Nelson M. Pampa/ina, R.E. De La Cruz and M. U. Garcia ................ 397
STUDIES ON TilE EFFECf OF METHYL PARA Till ON ON TilE SPERM MORPHOLOGY OF TilE ICR STRAIN MOUSE Imelda F. Pagulayan .............................. .. .............. ...... .... ....... ......... . 398
MATIIEMATICAL, PHYSICAL and ENGINEERING SCIENCES
A SIMPLE ASSOCIA TIVTIY TEST FOR FINITE ALGEBRAIC STRUcrURES Raoul E. Cawagas ............................................................................. 398
HEALffiSCIENCES
ANTI-FERTILITY EFFECI'S OF KANDI-KANDILAAN STACHYTARPHETA JAMAICENSIS (L. V AHL) LEAF EXTRACI'S
ON TilE FIRST 10 DAYS OF PREGNANCY OF ALBINO
RATS (RATTUS NORVEGICUS) Ma. Rosalia A. Navera and A.L.D. Lannu ......................................... 399
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AGRICULTURAL SCIENCFS
CHEMICAL COMPOSffiON AND FEEDING VALUE OF HEDGE LUCERNE (DESMANTHUS VIRGA1US (L) WILL.] IN FORMULA TED BROILER RATION Zosimo M. Battad, N.D. Longboy and R.R. Sair ............. ................ ..
IMPORTANT INSECT PESTS OF MANGIUM (ACACIA MANGJUMWILLD.)
400
Ricardo D. Braza ............................................. .............. .................... 400
INTEGRATED PEST MANAGEMENT OF ASIAN CORN BORER [OSTRJNJA FURNACALJS(GUENEE)] ON CORN (ZEA MAYS LINN.) INCLUDING THE USE OF MONITORING AND FORECASTING MODEL IN TIIREE CO!viP.REHENSIVE AGRARIAN REFORM PROGRAM(CARP)AREAS Bonifacio F. Cayabyab, R.G. Davide, E.A. Benigno, M.D.
Ebuenga, S.M. Bato, P.G. Gonzales and R.G. Bayot ......................... 401
DEVELOPMENT OF NA 1URAL PART SKIM MOZZARELLA-TYPE CHEESE FOR THE PIZZA INDUSTRY Clara L. Davide, I. G. Sarmago and R.F Rocafort . .................... ....... 401
SENSITIVITY OF COTES/A PLUTELLAE AND DIADEGMA
SEMICLA USUM P ARASITOIDS OF DIAMONDBACK MOTH (PLUTELLA XYLOSTELLA L.) TO SEVERAL INSECTICIDES Belen Morallo-Rejesus and J.B. Obra ...... . ......................... .... ........... 402
PREPARATION AND EVALUATION OF CONTROLLED RELEASE FORMULATIONS OF HERBICIDES USING RADIOCHEMICAL TECHNIQUES Cristina M. Bajet, M. Hussein and L.C. Araez ................................... 403
CYTOLCXJY, MORPHOLCXJY AND POLLEN FERTILITY OF INTERSPECIFIC HYBRIDS BETWEEN OR'YZA SATIVA
AND 0. OFFICINALIS A. Alfonso, V.N. Villegas and T.H. B01·romeo ........ ............................ 403
POLLINATION STUDIES IN PASSTON FRUIT R.B. Pimentel and VN. Villegas ........................................................ 404
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MOLECULAR TAGGING OF TilE GENE FOR BROWN
PLAN1HOPPER RESISTANCE TRANSFERRED FROM
WILD SPECIES ORYlA AUSTRALIENSIS INTO RICE
0. SATIVA
T Ishii , D.S Multani, D.S B rar and G.S. K hu sh . .. .. . ................. ... .. 404
ESTABLISHING A COUNTRY CORE COLLECTION IN MUNGBEAN
L.M. E ngle, M Cababasay, A.I.N. Gironella and D.H. Ki m. ............. 405
SOMA TIC KARYOTYPE OF SEVEN SPECIES OF CAPS! CUM
P. Sripacharayu t and L.M. E ngle........................................... 405
IMPROVING POTENTIAL OF WET-SEASON RICE CROP: 1HE IMPORTANCE OF PANICLE SIZE
MR. C. Laza, S. Peng , F. V. Gar cia and KG. Cassman .......... 406
LATE SEASON APPLICATION TO IMPROVE HEAD RICE YIELD AND GRAIN QUALITY
S.P. Liboo n, J.M. Alcan tara, C.M. Perez, 8.0. Juliano and
K. G. Cassman ..................................................................................... 406
SOMA TIC EMBRYOGENESIS AND PLANT REGENERATION IN TYPE IE, TYPE liE AND LONG-TERM CALLUS CUL 1URES OFMAIZE(ZEA MAYSL.) CV. IPB VAR4 V. C. Lapitan and L.F. Pate na............ .... ... ...... .. ........ ....... ............. .... . 407
CALLUS INDUCTION AND ORGANOOENESIS IN PECHA Y (BRASSICA CH!NESIS L.) CY. BLACK BEHI V. C. Lapi tan, C.A. Tandang and L.F. Patena ........................... . ..... .. 407
INDUCTION AND LONG-TERM MAINTENANCE OF CALLUS FROM ENDOSPERM TISSUE OF CALAMANSI (X CITRO
FORTUNELLA MITIS J. INGRAM AND H. MOORE) L.F. Patefia, R.A. Avenido. J.G. Dimaculangan and R.C. Barba...... 408
EMBRYOGENIC AND ORGANOOENIC CALLUS INDUCTION, MAINTENANCE AND PLANTLET REGENERATION IN MAIZE (ZEA MAYS L.) CV. IPB V AR 4 AND INBRED LINE P123 Eden A. Perez, Lilian F. Patena and Manuel L. Logrono ......... ........ 408
"BASIC SEED" PRODUCTION IN POTATO (SOLANUM
TUBEROSUML.) CV. BAN AHA W AND ASN 69.1 S.M. Rasco, L.F. Patena and R.C. Barba ............................... ....... .-.... 409
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PLANf REGENERATION FROM INDICA AND JAPONICA RICE PROTOPLASTS AND CYfOLOGICAL AND FIELD STIJDIES OF REGENERA1ED PLANTS F.J. Zapata, G. C. Ghosh Biswas, C. Y Wu, S. Zhang, VM. Kumar,
L.B. Torrizo, E.M. Abrigo, M.S. Alejar and W. Chen .. ... .... .. ... .. . . .. .. . 400
MICROENVIRONMENT, DISEASE DEVELOPMENT AND YIELD IN1ERACTION IN RICE-CORN MONOCROPPING AND
IN1ERCROPPING SYS1EMS M.S. Marquez-Pau/ican and D.P. Baldos ......................................... 410
EVALUATION OF TRADIDONAL PROCESSING MElli ODS OF NAMI (DIOSCOREA HISPIDA) IN 1ERMS OF CHlP
QUALITY, NUTRIENT AND DIOSCORINE CONTENT VB. Salda and F.M. Rodriguez ................ ..... ...... . . .... .......... . ..... ....... 411
SOMA TIC EMBRYOGENESIS OF CALLOIDS FROM IMMA1URE COCONUT EMBRYOS D. Orense, E.P. Rillo and A. W. Ebert ................................................. 411
DAILY GROWI1I RA 1E MEASUREMENTS DEMONS1RA 1E OSMOTIC AND IONIC EFFECI'S OF IDGH SALINITY 1REA TMENfS ON RICE G. C. Cabuslay and TL. Setter ........................................................... 411
MEASUREMENTS OF UL1RA VIOLET-B-IRRADIANCE UNDER FIELD CONDIDONS A.Q. Chavez, Q. Dai, S. Peng and B.S. Vergara ................................ 412
RICE DEVELOPMENT AND GROWI1I AS AFFEC1ED BY CARBON DIOXIDE P.A. Manalo, R.R. Pamp/ona and K. T. Ingram .................. ............... 413
YIELD P01ENTIAL LIMITATIONS: FACTORS AFFECTING YIELD OF DEEPWA 1ER RICE IN RELATION TO NEW PLANf TYPE A.M. Mazaredo, J.A. Egdane, E. V. Laure/es and T Setter ................ 413
RICE ROOT SAMPLING AND MEASUREMENT 1ECHNIQUES WTIH EMPHASIS ON DROUGHT J. DLC. Siopongco and K.T Ingram.................................................. 414
EFFECT OF SEED AGING ON CROP ESTABLISHMENT OF RICE CULTIV ARS IN ANAEROBIC SEEDING Tun Winn and M. Yamauchi ............................................................... 414
X
DEFOLIATION AS A METIIOD OF SCREENING RICE FOR DROUGIIT TOLERANCE AT FLOWERING E.B. Yambao and K.T Ingram ........................................................... 415
CHEMICAL CHANGES IN ABACA FIBER DERIVED FROM STALKS STORED AT V ARlO US DURATIONS C. C. De Guzman, I.S. Ammciado and R.A. Reglos ............................ 415
EFFECT OF SULFATE ON METIIANE PRODUCTION IN RICE PADDIES M.JF. Andales, R.S. Lant in and H. U. Neue....................................... 416
ESTIMATION OF RICE LEAF NTIROGEN CONCENTRATION USING A CHLOROPHYLL METER: 1HE INFLUENCE OF LEAF 1HICKNESS F. V Garcia, S. Peng, Ma. R.C. Laza and K.G. Cassman ......... . ......... 417
ENVIRONMENT IMPACT OF NEW RICE GROWING TECHNOLOGIES: SOIL MICROBIAL BIOMASS IN WEILAND RICE SOILS JL. Gaunt and H. U. Neue .................................................................. 417
ENVIRONMENTAL IMPACT OF NEW RICE GROWING TECHNOLOGIES: 1HE ROLE OF AQUATIC INVERTEBRATES ON 1HE DECOMPOSillON OF RICE RESIDUES IN RICEFIELDS I. C. S impson and B. Official ............................................................... 418
EFFECT OF BENOMYL AND CARBOFURAN ON APHELENCHO!DES BESSEY/ ON RICE E. B. Gergon and JC. Prot ................................................................. 419
PLANT PARASillC NEMATODES ASSOCIATED wrrn UPLAND RICE AS AFFECTED BY DIFFERENT DURATIONS OF CULTIVATION IN WEST SUMATRA, INDONESIA I.R.S. Soriano, D.M. Matias and JC. Prot ........................................ 419