Facultad de Ingeniería Agronómica

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    ´´ ABSORCIÓN DE NUTRIENTES (NPK) EN EL CULTIVO DE ARROZ (Oryza sativa L.) VARIEDAD INIAP 14´´
    (INGENIERIA AGRONOMICA, 2018-09) LOOR BRAVO, CARLOS JOEL
    THE RICE (ORYZA SATIVA L), IS CONSIDERED ONE OF THE MOST IMPORTANT CROPS WORLDWIDE DUE TO ITS GREAT NUTRITIONAL CONTRIBUTION. THIS SOCIAL AND PRODUCTIVE FIELD IS ALSO THE MAIN SUSTENANCE OF THE MANY FARMERS. THE PRESENT INVESTIGATION WAS CARRIED OUT IN THE HORCÓN SITE OF THE ROCAFUERTE CANTÓN, OF THE MANABÍ PROVINCE. THE OBJECTIVE WAS TO EVALUATE THE ABSORPTION OF NUTRIENTS (NPK) IN THE INIAP 14 VARIETY RICE CROP. A RANDOMIZED COMPLETE BLOCK DESIGN WITH FOUR TREATMENTS AND THREE REPLICATES WAS USED. THE TREATMENTS WERE ELABORATED BY APPLYING FOUR LEVELS OF NPK (0-0-0, 50-20-75, 100-40-150, 150-60-225). THE RESULTS SHOWED THAT NUTRIENT THE EXTRACTION (NPK), IN THE FIRST 25 DAYS AFTER TRANSPLANTATION, THERE WAS NOT STATISTICAL DIFFERENCE BETWEEN THE TREATMENTS, THE EFFECT WAS EVIDENT AFTER 50 DDT, WITH THE HIGHEST EXTRACTION OF NITROGEN AND POTASSIUM IN THE TREATMENT WITH THE HIGHEST APPLIED DOSE (T3), WHILE PHOSPHORUS OCCURRED IN T2.
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    ANÁLISIS DE LAS NECESIDADES BIBLIOGRÁFICAS EN EL ÁREA DE LAS MATERIAS PROFESIONALES EN EL PROYECTO DE LA NUEVA MALLA CURRICULAR DE LA CARRERA DE AGRONOMÍA DE LA UNIVERSIDAD TÉCNICA DE MANABÍ
    (INGENIERIA AGRONOMICA, 2016-11) MENDOZA CUENCA, WINTER ALEXANDER ; MOREIRA ZAMBRANO, JOSÉ ALFREDO
    THIS WORK TITRATION WAS PERFORMED ON THE MODEL OF COMMUNITY DEVELOPMENT AT THE FACULTAD DE INGENIERÍA AGRONÓMICA AT THE UNIVERSIDAD TÉCNICA DE MANABÍ, LOCATED IN THE PARISH LODANA, CANTÓN SANTA ANA, MANABÍ PROVINCE, FROM DECEMBER 2015 TO JULY 2016, WITH IN ORDER TO IMPROVE THE TEACHING AND LEARNING PROCESS, INCREASING QUALITY AND QUANTITY AVAILABILITY OF BIBLIOGRAPHIC TEXTS IN THE LIBRARY OF THE FACULTAD DE AGRONOMIA. THE MAIN OBJECTIVE OF THE CURRENT STUDY WAS TO DETERMINE THE BIBLIOGRAPHICAL NEEDS IN THE AREA OF PROFESSIONAL PRACTICE IN THE DESIGN OF THE NEW CURRICULUM OF THE CAREER OF AGRONOMIA OF THE FACULTAD DE INGENIERÍA AGRONÓMICA AT THE UNIVERSIDAD TÉCNICA DE MANABÍ, FOR WHICH 150 SURVEYS WERE CONDUCTED AIMED AT STUDENTS AND GRADUATES OF THE CAREER OF AGRONOMY. THEN BASED ON ALL THE INFORMATION GATHERED IN THE SURVEYS WAS ANALYZED BIBLIOGRAPHIC REQUIREMENTS OF THE NEW CURRICULUM, TO CONTINUE CONTRIBUTIONS SUPPLIERS OF SPECIALIZED BIBLIOGRAPHIC MATERIAL
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    ANÁLISIS DE LOS PROBLEMAS CAUSADOS POR ARTRÓPODOS PLAGAS Y ENFERMEDADES VIRALES EN CULTIVO DE PIMIENTO (CAPSICUM ANNUUM L.) EN ECUADOR
    (INGENIERIA AGRONOMICA, 2021-10) ÁLVAREZ MOREIRA, LILIANA DENISSE ; CEDEÑO MANZABA, PRISCILA ALEJANDRA
    THE PEPPER (CAPSICUM ANNUUM L.), IS A VEGETABLE CONSUMED WORLDWIDE THAT IN RECENT YEARS PRODUCTION HAS INCREASED CONSIDERABLY IN ECUADOR, BOTH IN THE COASTAL AND ANDEAN REGIONS. LIKE OTHER CROPS, THE PEPPER IS AFFECTED BY INSECTS SUCH AS THRIPS (FRANKLINIELLA OCCIDENTALIS AND THRIPS TABACI), APHIDS (APHIS GOSSYPII AND MYZUS PERSICAE), WHITEFLIES (BEMISIA TABACI) AND MITES (TETRANYCHUS URTICAE AND POLYPHAGOTARSONEMUS LATUS), WHICH WOULD AFFECT YOUR PERFORMANCE. ALSO, THIS CROP IS AFFECTED BY VIRUSES. A BIBLIOGRAPHIC REVIEW WAS CARRIED OUT IN ORDER TO DETERMINE THE MAIN PESTS, NATURAL ENEMIES AND VIRUSES THAT AFFECT PEPPERS IN ECUADOR. THE RESULTS SHOWED THE REPORT OF SEVEN SPECIES OF ARTHROPOD PESTS, AND 16 TAXA OF NATURAL ENEMIES. REGARDING THE VIROSIS, SIX SPECIES OF VIRUS WERE FOUND. ALTHOUGH THERE ARE SEVERAL ALTERNATIVES FOR PEST MANAGEMENT, IN THE COUNTRY FARMERS PREFER TO USE MAINLY CHEMICAL CONTROL. THIS INFORMATION SERVES AS THE BASIS FOR THE KNOWLEDGE OF THE ASSOCIATED ARTHROPODOFAUNA, AS WELL AS OF THE EXISTING VIRUSES AS A BASIS FOR DESIGNING MORE RATIONAL MANAGEMENT STRATEGIES FOR EXISTING PROBLEMS.
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    ANÁLISIS FISIOLÓGICO, BIOQUÍMICO Y PRODUCTIVO DE GENOTIPOS DE MANÍ (Arachis hypogaea L.) EN RESPUESTA AL ESTRÉS POR SEQUÍA.
    (INGENIERIA AGRONOMICA, 2021-03) Castro Posligua, Genessis Josselyn ; Cevallos Cedeño, Héctor Onides
    THE PEANUT CROP IS BETWEEN LEGUMES ONE OF THE MOST IMPORTANT FOOD CROPS IN THE FIELD AND HEALTH BENEFITS IN PROVIDING NUTRITIONAL COMPONENTS. IN ADDITION, IT IS CHARACTERIZED BY BEING GROWN IN AREAS THAT ARE CONSTANTLY HIT BY PERIODS OF DROUGHT AND ADVERSE CONDITIONS THAT HARM DEVELOPMENT AND PRODUCTION. RESEARCH WAS DEVELOPED WITH THE OBJECTIVE OF EVALUATING THE PHYSIOLOGICAL, BIOCHEMICAL AND PRODUCTIVE TWO PEANUT VARIETIES UNDER WATER DEFICIT. THE EXPERIMENT WAS CONDUCTED EVALUATING VARIETIES OF PEANUT CANDY AND ROSITA 380, WHICH UNDERWENT FOUR PERIODS OF DROUGHT. PHYSIOLOGICAL, MORPHOLOGICAL, BIOCHEMICAL AND PRODUCTIVE VARIABLES WERE EVALUATED SUCH AS STOMATAL CONDUCTANCE, WATER POTENTIAL, CHLOROPHYLL INDEX, NUMBER OF NODULES AND PODS, DRY WEIGHT OF THE PLANTS AND GRAIN PRODUCTION, IN ADDITION TO THE CONTENT OF PROTEINS, FAT, SATURATED AND UNSATURATED FATTY ACIDS.
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    BACTERIAS SIMBIÓTICAS EN EL CULTIVO DE MANÍ: UNA REVISIÓN
    (Ingeniero Agronomo, 2022-06) Moreira Moreira, José Jahir ; Reyna Alarcón, Cristhian Alexander
    THE OBJECTIVE OF THIS WORK IS TO COLLECT INFORMATION ON THE IMPORTANCE OF SYMBIOTIC BACTERIA IN PEANUT CULTIVATION. PEANUTS ARE OF GREAT ECONOMIC IMPORTANCE, BEING PRESENT WITHIN THE FOUR MOST IMPORTANT GRAINS IN THE WORLD. ITS WIDE DISTRIBUTION RANGES FROM ASIA, AFRICA, AMERICA, AND SOUTH AMERICA. THE ENTIRE BIOLOGICAL PROCESS OF A LEGUME IS CARRIED OUT IN THE ROOT SYSTEM WHERE THE RHIZOBIA THAT ARE PART OF THE ROOT NODULES ARE RESPONSIBLE FOR FIXING NITROGEN INDEPENDENTLY, THIS PROCESS IS RESPONSIBLE FOR TRIGGERING THE GROWTH, DEVELOPMENT, AND PERFORMANCE OF PLANTS. THE SYMBIOTIC BACTERIA PRESENT IN THE SOIL ARE RESPONSIBLE FOR FIXING NITROGEN, AS WELL AS NITRATE AND AMMONIUM, THESE BACTERIA TAKE NITROGEN FROM THE AIR, GIVING RISE TO COMPOUNDS CAPABLE OF BEING INCORPORATED INTO THE COMPOSITION OF LIVING BEINGS AND THE SOIL. RHIZOBACTERIA HAVE ADVANTAGES RELATED TO THE PROMOTION OF PLANT GROWTH, THROUGH THE AERIAL PART AND THE ROOT, INDUCING THE PRODUCTION OF GROWTH-INDUCING HORMONES IN PLANTS AND HELPING TO PROVIDE NUTRIENTS TO THE ROOTS. A DECREASE IN CHEMICAL FERTILIZERS BY SYMBIOTIC BACTERIA OR RHIZOBACTERIA CAN CHANGE PRODUCTION TECHNIQUES IN THE WORLD BECAUSE THEY ARE HIGHLY EFFECTIVE FOR LEGUMES SUCH AS PEANUTS.
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    LA CADENA DE PRODUCCIÓN DEL CACAO EN ECUADOR: RESILIENCIA EN LOS DIFERENTES ACTORES DE LA PRODUCCIÓN
    (INGENIERIA AGRONOMICA, 2021-07) GARCIA BRIONES, ANA ROSA ; PICO PICO, BRYAN FERNANDO
    CACAO IS ONE OF THE TRADITIONAL ECUADORIAN EXPORT PRODUCTS AND IN THE LAST THREE YEARS ECUADOR HAS BEEN THE THIRD LARGEST PRODUCER IN THE WORLD. SEVERAL FACTORS SUCH AS CLIMATE CHANGE, HIGH CONCENTRATIONS OF CADMIUM (CD) AND THE GLOBAL PANDEMIC OF COVID-19 ARE INFLUENCING THE ECUADORIAN COCOA PRODUCTION CHAIN. BASED ON AN ANALYSIS OF THE CHARACTERISTICS OF THE PRODUCTION AND MARKETING CHAIN OF COCOA IN ECUADOR, THE CHARACTERISTICS OF THE TYPES OF COCOA, THE TYPES OF PRODUCERS, IT IS SHOWN THAT THIS COUNTRY HAS GREAT POTENTIAL TO MAINTAIN PRODUCTION STANDARDS. ALTHOUGH SOME PREVIOUS PLANS HAVE BEEN PROPOSED FOR THE COMPETITIVE IMPROVEMENT OF ECUADORIAN COCOA, BASED ON THE PRODUCTION CHAIN, THESE PLANS HAVE NOT ANALYZED THE FARMER'S PRODUCTION ENVIRONMENT. IN THIS WORK, FIVE LINES OF ACTION BASED ON: IMPROVING THE RURAL ENVIRONMENT OF THE FARMER, PROMOTING ASSOCIATIVITY AND COOPERATIVISM, IMPROVING PRODUCTIVITY AND CONSUMPTION IN THE NATIONAL MARKET, CONSOLIDATING THE INTERNATIONAL MARKET AND RESEARCH ARE PROPOSED AS LINES OF ACTION. IT IS IMPERATIVE TO ENGAGE THESE AXES IN AN ACTION AIMED AT PROVIDING GREATER RESILIENCE IN THE ECUADORIAN COCOA PRODUCTION CHAIN
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    Cadmio en el cultivo de cacao (Theobroma cacao L.) y sus efectos ambientales.
    (Ingeniero Agronomo, 2022-04) Chancay Alcívar Luis Fernando
    A CRITICAL ISSUE IN AGRICULTURE TODAY IS THE PRESENCE OF CADMIUM IN THE COCOA CROP, AS IT SEVERELY COMPROMISES HEALTH, FOOD SAFETY, AND THE ENVIRONMENT. ALTHOUGH THE DEMAND FOR COCOA IS GROWING SIGNIFICANTLY, THE PRESENCE OF THIS CONTAMINANT IS A POTENTIAL LIMITING FACTOR FOR ITS EXPORT AND COMMERCIALIZATION. THIS ARTICLE DESCRIBES THE ENVIRONMENTAL EFFECTS OF CADMIUM ON THE COCOA PLANT, SOIL-WATER ECOSYSTEMS, HUMAN HEALTH, AND SOME SOCIO-ECONOMIC CONFLICTS. IN THIS SENSE, THROUGH A SYSTEMATIC LITERATURE REVIEW AND INFORMATION AVAILABLE IN DATABASES, A STATEMENT IS PRESENTED, BASICALLY FOCUSED ON CADMIUM AS ONE OF THE MOST TOXIC AND INHIBITORY METALS IN PLANT PHYSIOLOGICAL PROCESSES SINCE IT REDUCES GROWTH, PHOTOSYNTHETIC ACTIVITY, TRANSPIRATION, AND CHLOROPHYLL CONTENT, IN ADDITION TO CAUSING A SIGNIFICANT NUTRITIONAL IMBALANCE IN PLANTS WITH CONSEQUENT EFFECTS ON PRODUCTIVITY. ITS ACCUMULATION DEGRADES THE SOIL ALTERS ITS CHEMICAL (NUTRIENTS AND PH), PHYSICAL (TEXTURE, PERMEABILITY, WATER RETENTION, AND DENSITY), AND BIOLOGICAL (FUNGI AND BACTERIA) PROPERTIES, LOSING ITS SELF-PURIFICATION CAPACITY. IN AERIAL PARTS OF PLANTS, IT ALLOWS ITS PASSAGE TO THE TROPHIC CHAIN WHERE IT BIOACCUMULATES, CAUSING HARMFUL EFFECTS ON PEOPLE'S HEALTH, MAINLY DAMAGING KIDNEYS AND LIVER, WHICH CAN CAUSE NEPHROPATHY AND IRREVERSIBLE LIVER DAMAGE. CONTINUED INGESTION OF THIS HEAVY METAL CAN CAUSE BONE FRAGILITY.
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    CARACTERIZACIÓN AGRONÓMICA DE 44 ACCESIONES DE LA COLECCIÓN DE HIGUERILLA (Ricinus communis L.) DE INIAP-PORTOVIEJO
    (INGENIERIA AGRONOMICA, 2016-11) BORJA CABEZA, LUIS LEONARDO ; SOLEDISPA VALERIANO, CRISTHIAN JASMANI
    THIS RESEARCH WAS CONDUCTED IN THE PERIOD BETWEEN MAY AND OCTOBER 2013, AT THE EXPERIMENTAL STATION PORTOVIEJO NATIONAL AUTONOMOUS INSTITUTE FOR AGRICULTURAL RESEARCH (INIAP), LOCATED IN THE PARISH COLUMBUS, CANTON PORTOVIEJO, MANABÍ PROVINCE, AT THE GEOGRAPHICAL COORDINATES 01º14 'SOUTH LATITUDE AND 80º16' WEST LONGITUDE; AGRONOMIC ALLY AIMED TO CHARACTERIZE 44 ACCESSIONS OF CASTOR GERMPLASM BANK COLLECTED IN THE PROVINCES OF MANABÍ AND PICHINCHA
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    Caracterización biológica y serológica de 20 aislamientos virales que afectan el cultivo de pimiento (Capsicum annuum L.) en el Valle del Río Portoviejo
    (INGENIERIA AGRONOMICA, 2016-11) MENDOZA ZAMBRANO, RICHARD DIOMEDES ; SÁNCHEZ VÉLEZ, GÉNESIS YESSENIA
    THIS RESEARCH WAS CONDUCTED IN A HOUSE OF VEGETATION´S HOUSE TO INSECT PROOF IN THE PLANT PATHOLOGY, BIOTECHNOLOGY AND MOLECULAR BIOLOGY LABORATORIES, THE FIRST TWO AT THE FACULTY OF AGRICULTURAL ENGINEERING AND THE LAST AT THE UNIVERSIDAD TÉCNICA DE MANABÍ (PORTOVIEJO). IN ORDER TO CHARACTERIZE BIOLOGICAL AND SEROLOGICALLY VIRUS AFFECTING PEPPER CROP AND VALIDATE THE RESISTANCE OF COMMERCIAL HYBRID QUETZAL, USING 20 ISOLATES OBTAINED FROM 32 SAMPLES FROM EIGHT PRODUCING FIELDS, LOCATED IN COLÓN (CO) AND CRUCITA (CR) PARISH BELONG TO THE PORTOVIEJO CANTON, BUENOS AIRES (BA), THE CEIBAL (CE) AND LA RECTA OF ROCAFUERTE (RR) BELONG TO ROCAFUERTE CANTON, CHARAPOTÓ (CH) BELONG TO SUCRE CANTON AND LODANA (LO) BELONG TO THE SANTA ANA CANTON, IN THE VALLEY OF PORTOVIEJO´S RIVER
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    CARACTERIZACIÓN BIOLÓGICA Y SEROLÓGICA DE AISLAMIENTOS VIRALES QUE AFECTAN EL CULTIVO DE TOMATE (Solanum lycopersicum L.) EN EL VALLE DEL RÍO PORTOVIEJO
    (INGENIERIA AGRONOMICA, 2016-11) MOREIRA MERA, ALEXANDER LEONEL ; INTRIAGO CEDEÑO, SILVIA MARIELA
    THIS RESEARCH WAS CONDUCTED IN A VEGETATION´S HOUSE TO INSECT PROOF IN THE PHYTOPATHOLOGY, BIOTECHNOLOGY AND MOLECULAR BIOLOGY LABORATORIES, THE FIRST AT THE FACULTY OF AGRICULTURAL ENGINEERING AND THE LAST AT THE UNIVERSIDAD TÉCNICA DE MANABÍ (PORTOVIEJO). IN ORDER TO CHARACTERIZE BIOLOGICAL AND SEROLOGICALLY VIRUS AFFECTING PEPPER CROPS AND VALIDATE THE RESISTANCE OF COMMERCIALS HYBRIDS MIRAMAR AND PIETRO, USING 11 ISOLATES OBTAINED FROM 25 SAMPLES FROM EIGHT PRODUCING FIELDS, LOCATED IN LODANA (LO) ESTANCIA VIEJA (EV) COLÓN (CO) AND CRUCITA (CR) PLACES IN THE CATCHMENT AREA OF THE RIVER PORTOVIEJO
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    “CARACTERIZACIÓN DE LOS MÉTODOS DE ALMACENAMIENTO DE LA SEMILLA DE MAÍZ EN LA PROVINCIA DE MANABÍ”
    (Ingeniero Agronomo, 2022-03) María Alejandra Ortiz Bravo ; Miguel Ángel Parraga Giler
    THE CORN OR (ZEA MAYS), IS ONE OF THE OLDEST CEREALS OCCUPYING THE SECOND PLACE IN THE WORLD FOR ITS PRODUCTION, IT IS OF GREAT ECONOMIC IMPORTANCE WORLDWIDE, IT SERVES AS FOOD FOR HUMANS AND ANIMALS IN ADDITION TO THE POWERFUL OPTIMIZATION OF ITS MATERIAL PREMIUM IN INDUSTRIAL PRODUCTS SUCH AS FLOUR, OIL, SYRUPS, SNACKS, POPCORN, TORTILLAS, BREAD, CHEWING GUM, CANDIES, AMONG OTHERS. WORLDWIDE, IT IS ESTIMATED THAT THE AREA PLANTED WITH THIS CROP RANGES BETWEEN 138 MILLION HECTARES; OF WHICH, 60% CORRESPONDS TO DEVELOPING COUNTRIES. IT IS CONSIDERED THAT 50% OF THE TOTAL PLANTED AREA IS CONCENTRATED IN COUNTRIES SUCH AS: BRAZIL, CHINA, INDIA AND MEXICO, BECOMING A MASSIVE PRODUCTION, SINCE IT IS PART OF THE WORLD'S ENERGY INTAKE.
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    Carbono almacenado en biomasa aérea y suelos de un área del “Bosque y vegetación protector El Artesan EcuadorianHands”, Joa, Jipijapa
    (Ingeniero Agronomo, 2022-04) Ávila Peñafiel, Jennifer Daisy
    THE VALUATION OF CARBON STORED IN FORESTS IS ESSENTIAL WHEN PROMOTING ITS CONSERVATION. THE OBJECTIVE OF THIS STUDY WAS TO ESTIMATE THE CARBON STORED IN AERIAL BIOMASS AND SOILS OF AN AREA OF THE "FOREST AND PROTECTIVE VEGETATION EL ARTESAN ECUADORIANHANDS", JOA, JIPIJAPA IN ECUADOR. TWENTY-FOUR PERMANENT CIRCULAR SAMPLING PLOTS WERE RANDOMLY ESTABLISHED WITH AN AREA OF 500 M2 CONSIDERING THREE ELEVATIONAL FLOORS (200 - 250; 251 - 300 AND> 300 MASL). DIAMETER AT CHEST HEIGHT (DBH) AND THE TOTAL HEIGHT OF INDIVIDUALS WITH DBH> 5 CM WERE RECORDED. AN ALLOMETRIC EQUATION WAS USED TO ESTABLISH THE LIVING AERIAL BIOMASS AND ESTIMATE THE STORED CARBON USING THE DATA RECORDED IN THE FIELD. THIS EQUATION CONTAINS INFORMATION OF WOOD DENSITY; DUE TO THIS, IT WAS NECESSARY TO PREVIOUSLY IDENTIFY THE SPECIES. SOIL CARBON WAS EVALUATED FROM ORGANIC CARBON AND APPARENT DENSITY. THE RESULTS INDICATE THAT ALTITUDE IS NOT A FACTOR THAT INTERVENES IN CARBON STORAGE IN LIVING AERIAL BIOMASS AND SOILS. 90% OF THE CARBON STORED IN LIVING AERIAL BIOMASS IS DOMINATED BY C. TRISCHISTANDRA, E. RUIZII, B. GRAVEOLENS, AND E. VELUTINA. THE AVERAGE CARBON STOCK IN THE SOILS OF THE JOA, JIPIJAPA FOREST IS 71.84 MG C HA-1; THEREFORE, IT IS BELIEVED THAT THIS TYPE OF FOREST SYMBOLIZES AN OPTION TO COUNTERACT THE INCREASE IN ATMOSPHERIC CO2, THIS BEING A JUSTIFICATION TRANSCENDENTAL FOR ITS CONSERVATION, EVEN MORE SO WHEN THE FOREST IS UNDERGOING DYNAMIC GROWTH PROCESSES.
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    COBALTO COMO NUTRIENTE NECESARIO EN LA FIJACIÓN BIOLÓGICA DE NITRÓGENO EN MANÍ (Arachis hypogaea L.).
    (INGENIERIA AGRONOMICA, 2021-05) LOOR CEDEÑO, PAOLA KATHERINE ; PINARGOTE INTRIAGO, MONSERRATE ESTEFANIA
    THE PRESENT INVESTIGATION WAS CARRIED OUT IN THE “ISABELITA” FARM, LOCATED IN THE SAN JACINTO SITE OF THE LODANA PARISH OF THE SANTA ANA CANTON, MANABÍ PROVINCE, LOCATED AT THE COORDINATES: LATITUDE 01 ° 09 '51 "S AND LONGITUDE 80 ° 23' 24 "W) AND AT A HEIGHT OF 60 METERS ABOVE SEA LEVEL. THE OBJECTIVE OF THE RESEARCH WAS TO EVALUATE THE INFLUENCE OF COBALT ON THE BIOLOGICAL FIXATION OF NITROGEN IN PEANUTS (ARACHIS HYPOGAEA L.). THIS WORK WAS AN EXPERIMENTAL TYPE INVESTIGATION, WHERE A COMPLETELY RANDOMIZED STATISTICAL DESIGN (DBCA) WAS APPLIED, WITH EIGHT TREATMENTS AND THREE REPETITIONS, WHICH CONSISTED OF 2 FACTORS, TWO DOSES OF N (0 APPLICATION - 160 KG/HA) AND FOUR DOSES OF COBALT (0 APPLICATION - 4 PPM- 8 PPM- 12 PPM), OBTAINING A FACTORIAL OF 2 X 4. THE VARIABLES EVALUATED WERE: NUMBER OF PODS PER PLANT, DRY MATTER OF ROOT, STEM AND LEAVES, YIELD, NUMBER OF TOTAL AND ACTIVE NODULES, AND ABSORPTION OF N, P, K, CA AND MG. THE RESULTS OBTAINED WERE ANALYZED IN THE INFOSTAT 2018 SOFTWARE, BY MEANS OF A SIMPLE ANALYSIS OF VARIANCE AND DUNCAN'S MEAN COMPARISON TEST 5%.
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    ´´COMPORTAMIENTO AGRONÓMICO DE DOS HÍBRIDOS DE MAÍZ (Zea mays L.) CON DIFERENTES DENSIDADES DE SIEMBRA EN ÉPOCA LLUVIOSA”
    (INGENIERIA AGRONOMICA, 2019-02) MUÑOZ INTRIAGO, KLEBER ALEXANDER
    THE OBJECTIVE OF THE RESEARCH WAS TO EVALUATE THE MORPHOPHYSIOLOGICAL, PRODUCTIVE BEHAVIOR AT DIFFERENT PLANTING DENSITIES DURING THE RAINY SEASON OF TWO MAIZE HYBRIDS (446Y) AND (P4039), AND FINALLY TO CARRY OUT AN ECONOMIC EVALUATION. THE TRIAL WAS CONDUCTED OVER A PERIOD OF FIVE MONTHS; FEBRUARY TO JUNE 2018 IN THE TEODOMIRA EXPERIMENTAL CAMPUS OF THE FACULTY OF AGRONOMIC ENGINEERING OF THE TECHNICAL UNIVERSITY OF MANABÍ LOCATED IN THE LODANA PARISH OF THE SANTA ANA CANTON, PROVINCE OF MANABÍ, ECUADOR; AT A TEMPERATURE OF 25 ° C AND RELATIVE HUMIDITY OF 70%. THE VARIABLES THAT WERE TAKEN INTO ACCOUNT WERE IMMERSED; PLANT HEIGHT, STEM DIAMETER, LEAF LENGTH AND WIDTH AT 20, 40 AND 60 DAYS AFTER SOWING.
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    Comportamiento de cuatro variedades de maní (Arachis hypogaea L.) a diferentes regímenes de riego
    (Ingeniero Agronomo, 2022-04) Quiroz Avilez, Roger Fermin ; Quiroz Avilez, Leviz Junior
    AGRICULTURE REPRESENTS THE ACTIVITY WITH THE HIGHEST WATER DEMAND AND PLAYS A TRANSCENDENTAL ROLE IN FOOD PRODUCTION. THEREFORE, THE USE OF THIS RESOURCE IN AN ANNUAL CROP SUCH AS PEANUTS IS OF PARAMOUNT IMPORTANCE, ESPECIALLY IF THE PRODUCTION AREA AND CLIMATIC CONDITIONS ARE CONSIDERED, WHICH DO NOT USUALLY SATISFY THE WATER REQUIREMENTS OF THE CROP. THEREFORE, THE OBJECTIVE OF THE STUDY WAS TO EVALUATE THE EFFECT OF DIFFERENT IRRIGATION REGIMES ON FOUR VARIETIES OF PEANUT (ARACHIS HYPOGAEA L.). FOR THIS PURPOSE, THE EXPERIMENT WAS CARRIED OUT IN THE FACILITIES OF THE FACULTY OF AGRICULTURAL ENGINEERING OF THE TECHNICAL UNIVERSITY OF MANABI, LOCATED IN THE LODANA PARISH KM 13½ VIA PORTOVIEJO-SANTA ANA, WHERE THE ROSITA, BLACK, STRIPED AND CARAMEL VARIETIES WERE USED. .
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    Comportamiento de plagas y enfermedade en el cultivo de Citrus aurantifolia (Christm.) y Citrus latifolia (Tanaka) en Latinoamérica y Ecuador.
    (Ingenieria Agronomica, 2022) Mero Casanova, Valeria Guadalupe ; Quijije Muñoz, María Angélica ; " " ; " "
    THE MEXICAN LEMON, CITRUS AURANTIIFOLIA, AND THE TAHITI LIME, CITRUS LATIFOLIA ARE IMPORTANT CITRUS FRUITS DUE TO THEIR DEMAND AS FRESH OR PROCESSED PRODUCTS. LATIN AMERICA PRODUCES 35% OF THE LIMES AND LEMONS CONSUMED IN THE WORLD. ITS CULTIVATION COULD BE AFFECTED BY EXOTIC AND NATIVE PHY-TOSANITARY PROBLEMS. THE OBJECTIVE OF THIS RESEARCH WAS TO ANALYZE THE OCCURRENCE AND IMPACT OF DISEASES AND PESTS IN C. AURANTIIFOLIA AND C. LATIFOLIA IN LATIN AMERICA. A REVIEW WAS CARRIED OUT IN DIFFERENT DATABASES, SUCH AS ACADEMIC GOOGLE, FAO AND EPPO. THE MAIN BACTERIAL AND FUNGAL DISEASES REPORTED ARE: CANKER CAUSED BY XANTHOMONAS CITRI SSP. CITRI, AN-THRACNOSE DUE TO COLLETOTRICHUM GLOEOSPORIOIDES AND COLLETOTRICHUM ACUTATUM AND GUMMOSIS ASSOCIATED WITH, PHYTOPHTHORA PARASITICA. AMONG THE VIROSIS, THE LEPROSIS VIRUS AND THE CITRUS TRISTEZA VIRUS, TRANSMITTED BY MITES, BREVIPALPUS SPP. AND TOXOPTERA CITRICIDA, RESPECTIVELY. PHYLLOCNISTIS CITRELLA IS CONSIDERED A PRIMARY PEST THAT BUILDS GALLERIES IN THE LEAVES, DEFORMING THEM AND AFFECTING THEIR DEVELOPMENT. THIRTY ONE TAXA OF COCCOIDEA AND FIVE OF WHITEFLIES (ALEYRODIDAE) WERE REPORTED. HOWEVER, THE MOST RELEVANT PHYTOSANITARY PROBLEM IS HUANGLONGBING (HLB) DE-TECTED IN THE AMERICAS IN BRAZIL IN 2004. IT IS CAUSED BY THE BACTERIA CANDI-DATUS LIBERIBACTER SPP. AND TRANSMITTED BY DIAPHORINA CITRI. THE PRODUCTION OF LIMES AND LEMONS IN LATIN AMERICA HAS FACED CHALLENGES IN DISEASE AND PEST MANAGEMENT. WHILE TECHNOLOGIES ARE GENERATED TO REDUCE THE DAMAGE CAUSED BY HLB AND OTHER PHYTOSANITARY PROBLEMS, CITRUS GROWERS MUST UNDERTAKE STRATEGIES THAT ALLOW THEM TO MANAGE THEM RATIONALLY AND AT THE SAME TIME MAINTAIN PRODUCTION LEVELS.
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    “COMPORTAMIENTO DEL CULTIVO DE PIMIENTO (Capsicum annuum L) VARIEDAD ODIN A LA APLICACIÓN DE LIXIVIADOS DE VERMICOMPOST DE ESTIÉRCOL BOVINO EN SISTEMA SEMIPROTEGIDO”.
    (INGENIERIA AGRONOMICA, 2019-08) PACHAY SANTANA, ROBINSON EMILIO
    EL CULTIVO DE PIMIENTO (CAPSICUM ANNUUM L) ES UNA DE LAS HORTALIZAS DE GRAN IMPORTANCIA, APETECIDA POR SU GRAN VALOR NUTRITIVO Y SU ALTO CONTENIDO DE VITAMINA C. LA AGRICULTURA SOSTENIBLE SIGUE EN AUMENTO, TANTO ASÍ QUE EN LOS ÚLTIMOS AÑOS SE HA OPTADO POR EL USO DE INSUMOS ORGÁNICOS EN DIFERENTES CULTIVOS AGRÍCOLAS, CON EL FIN DE DISMINUIR EL USO EXCESIVO DE LOS AGROQUÍMICOS QUE CADA VEZ CONTAMINAN MÁS LOS RECURSOS NATURALES, PROVOCANDO DAÑOS A LA SALUD DE LAS PERSONAS. EN EL ECUADOR LA PRODUCCIÓN ORGÁNICA SE PRACTICA EN 23 DE LAS 24 PROVINCIAS, CUENTA CON 46.500 HA-1 Y 13.500 PRODUCTORES ORGÁNICOS REGISTRADOS, SUS PRINCIPALES PRODUCTOS SON CACAO, BANANO, CAFÉ Y ALGUNAS HORTALIZAS. LA PRESENTE INVESTIGACIÓN SE REALIZÓ CON EL OBJETIVO DE EVALUAR EL COMPORTAMIENTO DEL CULTIVO DE PIMIENTO (CAPSICUM ANNUUM L) VARIEDAD ODIN A LA APLICACIÓN DE LIXIVIADO DE VERMICOMPOST DE ESTIÉRCOL BOVINO EN SISTEMA SEMIPROTEGIDO. SE ESTUDIARON 4 TRATAMIENTO, T1= SUELO SIN FERTILIZACIÓN; T2= FERTILIZACION QUÍMICA (NPK); T3= LIXIVIADO DE VERMICOMPOST DE ESTIÉRCOL BOVINO EN DOSIS 1:20 V/V; T4= LIXIVIADO DE VERMICOMPOST DE ESTIÉRCOL BOVINO EN DOSIS 1:30 V/V.
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    COMPORTAMIENTO FISIOLOGÍCO DEL LIMÓN SUTIL (Citrus aurantifolia Swingle) EN SUELOS SALINOS
    (INGENIERIA AGRONOMICA, 2021-08) FERRIN FERRIN, FERNANDO ANDRES
    THE SOILS THAT ARE AFFECTED BY SALINITY HAVE A HIGH CONCENTRATION OF MORE SOLUBLE SALTS THAN CALCIUM CARBONATE AND GYPSUM WHICH DIRECTLY THE GROWTH OF PLANTS. IT IS IMPORTANT TO CONSIDER THAT CITRUS FRUITS ARE PERENNIAL CROPS WITH A WIDE PRODUCTION RANGE AND ARE OF WORLDWIDE IMPORTANCE. SALINITY GENERATES VARIOUS DAMAGES AMONG WHICH WE HAVE: TISSUE BURNS, DECREASED YIELD, FOLIAR ABSCISSION AND PLANT DEATH. SALT STRESS IS ASSOCIATED WITH: A) AN IONIC COMPONENT LINKED TO THE ACCUMULATION TO TOXIC LEVELS OF CL- AND NA + IONS IN THE CYTOPLASM, CAUSING AN IONIC IMBALANCE; B) AN OSMOTIC COMPONENT DUE TO THE COMPARTMENTALISATION OF THIS TOXIC ION IN THE VACUOLE THAT CAUSES THE WATER POTENTIAL OF THE CYTOSOL TO DECREASE TO BALANCE THE LOW EXTERNAL WATER POTENTIAL AND ENSURE THE ENTRY OF WATER INTO THE PLANT CELL AND THUS AVOID DAMAGE TO THE PLANT CELL. MACROMOLECULE. THE CITRUS PRODUCTION IN ECUADOR IS IMPORTANT THE LEMON, CULTIVATED IN THE PROVINCE OF MANABÍ. GIVEN THE IMPORTANCE OF CULTIVATION IN THE PROVINCE, THIS REVIEW FOCUSES ON ANALYZING THE EFFECTS OF SALINE STRESS AND ITS CAUSES, SPECIFICALLY IN CITRUS FRUITS, FOR WHICH A METICULOUS SEARCH FOR INFORMATION FROM STUDIES REGARDING SALINITY WILL BE CARRIED OUT.
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    COMPORTAMIENTO PRODUCTIVO DEL CULTIVO DEL MAÍZ HIBRIDO PIONEER 4039 AL RIEGO DEFICITARIO CONTROLADO CON DIFERENTES DENSIDADES DE SIEMBRA
    (INGENIERIA AGRONOMICA, 2021-09) ÁLAVA HOYOS, CRISTHIAN JONATHAN
    CORN IS ONE OF THE MOST IMPORTANT CEREALS IN THE WORLD, ALONG WITH RICE AND WHEAT, INCREASING PRODUCTION IN ORDER TO SATISFY THE DEMAND FOR THIS FOOD IS AN UNAVOIDABLE PREMISE. THE OBJECTIVE OF THE RESEARCH WAS TO EVALUATE THE BEHAVIOR OF HYBRID CORN "PIONEER 4039" UNDER CONTROLLED DEFICIT IRRIGATION WITH DIFFERENT PLANTING DENSITIES. THE EXPERIMENT WAS CARRIED OUT IN THE PERIOD FROM JULY TO DECEMBER 2019, ON THE PREMISES OF THE LA TEODOMIRA EXPERIMENTAL CAMPUS BELONGING TO THE FACULTY OF AGRONOMIC ENGINEERING OF THE TECHNICAL UNIVERSITY OF MANABÍ, LOCATED IN THE LODANA PARISH, SANTA ANA CANTON, MANABÍ PROVINCE, ECUADOR, LOCATED AT THE GEOGRAPHIC COORDINATES OF 01 ° 09´51” SOUTH LATITUDE, 80 ° 23´24” WEST LONGITUDE, AT AN ALTITUDE OF 60 METERS ABOVE SEA LEVEL. THE EXPERIMENT WAS ESTABLISHED IN A DIVIDED PLOT DESIGN, WITH A FACTORIAL ARRANGEMENT OF 4 (PERCENTAGES OF THE GROSS IRRIGATION SHEET) X 3 (PLANTING DENSITIES), FOR A TOTAL OF 12 TREATMENTS, WITH 3 REPETITIONS, 324 PLANTS WERE SELECTED.
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    CONSTRUCCIÓN DE DOS NAVES PARA VIVEROS EN LA FACULTAD DE INGENIERÍA AGRONÓMICA DE LA UNIVERSIDAD TÉCNICA DE MANABÍ
    (INGENIERIA AGRONOMICA, 2016-11) CEDEÑO MENDOZA, JOFFRE MARCELO ; LOOR SABANDO, MARCO ANTONIO
    THE PROJECT WAS CARRIED OUT BETWEEN MAY TO OCTOBER, 2015 IN “LA TEODOMIRA” FARM OF THE SCHOOL OF AGRONOMIC ENGINEERING OF THE TECHNICAL UNIVERSITY OF MANABÍ, LOCATED IN LODANA, CANTON SANTA ANA, PROVINCE OF MANABÍ, LOCATED GEOGRAPHICALLY AT 01º09´ OF SOUTH LATITUDE AND 80º21´ OF WEST LONGITUDE WITH AN ALTITUDE OF 60 MASK. PRESENTED AS OBJECTIVE TO BUILD TWO NURSERIES FOR THE PRODUCTION OF PLANTS IN THE FACULTY OF AGRICULTURAL ENGINEERING, FOR THIS METHODOLOGY OF PARTICIPATORY ACTION WAS USED, THE SAME I COUNTED WITH SURVEYS STUDENTS AND TEACHERS WHOSE RESULTS WERE PRESENTED IN TABLES AND GRAPHS INTERPRETED TO ESTABLISH THE CONCLUSIONS AND RECOMMENDATIONS.