Marcia Rodríguez-Palomera, G. Luna-Esquivel, A. Robles-Bermúdez, J. M. Coronado-Blanco, Kevin Gerardo Cambero-Nava, O. J. Cambero-Campos
{"title":"ASPECTOS BIOLÓGICOS Y PARÁMETROS POBLACIONALES DE Cycloneda sanguínea L. (COLEOPTERA: COCCINELLIDAE) SOBRE Aphis aurantii BOYER DE FONSCOLOMBE (HEMIPTERA: APHIDIDAE)","authors":"Marcia Rodríguez-Palomera, G. Luna-Esquivel, A. Robles-Bermúdez, J. M. Coronado-Blanco, Kevin Gerardo Cambero-Nava, O. J. Cambero-Campos","doi":"10.4067/s0719-38902019005000305","DOIUrl":"https://doi.org/10.4067/s0719-38902019005000305","url":null,"abstract":"The objective of this study was to determine the biological cycle and life table of Cycloneda sanguinea L. fed with the aphid Aphis aurantii Boyer de Fonscolombe under laboratory conditions. The biological material was collected in jackfruit (Artocarpus heterophyllus Lam.) orchards located in the municipalities of San Blas and Compostela, Nayarit, Mexico. The experiments were carried out in the Laboratory of Parasitology of the Autonomous University of Nayarit, at a temperature of 25 ± 2°C, 70 ± 10% RH and a photophase of 12 hours. The duration of the immature phase was 19.32 ± 4.97 days, 197 Rodríguez-Palomera et al. Aspectos biológicos y parámetros poblacionales de Cycloneda sanguinea sobre Aphis aurantii and the longevity of the adults was 58.37 ± 3.44 and 61.71 ± 4.96 days, for males and females, respectively. The females presented a pre-oviposition period of 3.9 ± 0.31 days, with a fecundity of 882.2 ± 52.28 eggs / female. The survival curve was type I, which indicated that mortality mostly occurred in old individuals. The fertility curve showed two maximum oviposition peaks on days 9 and 36 after the emergence of adults. The net reproductive rate was 705.76 female eggs/female, in a generational time of 23.39 days, and a finite rate of increase of 1.41 individuals per day.","PeriodicalId":42485,"journal":{"name":"Chilean Journal of Agricultural & Animal Sciences","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49309617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"MANEJO DEL RIEGO EN PERA (Pyrus communis) cv. WILLIAMS CULTIVADA EN SUELO CON CAPA FREATICA POCO PROFUNDA","authors":"Juan Oreste Galeazzi, M. C. Aruani","doi":"10.4067/s0719-38902019005000310","DOIUrl":"https://doi.org/10.4067/s0719-38902019005000310","url":null,"abstract":"","PeriodicalId":42485,"journal":{"name":"Chilean Journal of Agricultural & Animal Sciences","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46528354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lorena Alejandra Barbaro, M. Karlanián, P. Rizzo, N. Riera
{"title":"CARACTERIZACIÓN DE DIFERENTES COMPOST PARA SU USO COMO COMPONENTE DE SUSTRATOS","authors":"Lorena Alejandra Barbaro, M. Karlanián, P. Rizzo, N. Riera","doi":"10.4067/S0719-38902019005000309","DOIUrl":"https://doi.org/10.4067/S0719-38902019005000309","url":null,"abstract":"","PeriodicalId":42485,"journal":{"name":"Chilean Journal of Agricultural & Animal Sciences","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46127753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
C. Faverin, Franco Bilotto, Catalina Fernández Rosso, Claudio Machado
{"title":"MODELACIÓN PRODUCTIVA, ECONÓMICA Y DE GASES DE EFECTO INVERNADERO DE SISTEMAS TÍPICOS DE CRÍA BOVINA DE LA PAMPA DEPRIMIDA","authors":"C. Faverin, Franco Bilotto, Catalina Fernández Rosso, Claudio Machado","doi":"10.4067/S0719-38902019005000102","DOIUrl":"https://doi.org/10.4067/S0719-38902019005000102","url":null,"abstract":"The aim of this study was to evaluate the productive economic performance and greenhouse gas emissions (GHG) in typical cow-calf farms in the Flooding Pampas, Argentina. A dynamic, bio-economic and environmental “whole-farm” model (SIMUGAN) and regional data were used to evaluate two contrasting scenarios obtained from the 4 systems identified in a previous study. Two scenarios were taken as baseline: medium-scale traditional farmer (Tr) and large-scale local technified enterprise (Te). Both scenarios were intensified with the inclusion of two levels of fescue 15 Faverin et al. Modelación de cría bovina de la Pampa Deprimida pasture under good management practices (5 or 10% of the farm area), and the anticipation of the first service of heifers (from 27 to 15 months age) for the scenarios with 10% of fescue pasture. The GHG intensity emissions (IE) varied accordingly to the intensification level in a similar trend for Tr and Te scenarios (between 16.4 and 19.9 kg CO2 eq kg LW-1). The additive effect for the 10% of fescue pasture incorporation combined with early mating of heifers reduced IE up to 17%. Results suggest that it is feasible to reduce IE by the adoption of available technologies. Although further experimental research is required, this study provides useful information about GHG for policy makers and farmers in order to promote a higher promotion/adoption of technologies based on their economic response.","PeriodicalId":42485,"journal":{"name":"Chilean Journal of Agricultural & Animal Sciences","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4067/S0719-38902019005000102","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41841725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dulce Jazmín Hernández-Melchor, R. Ferrera-Cerrato, A. Alarcón
{"title":"Trichoderma: IMPORTANCIA AGRÍCOLA, BIOTECNOLÓGICA, Y SISTEMAS DE FERMENTACIÓN PARA PRODUCIR BIOMASA Y ENZIMAS DE INTERÉS INDUSTRIAL","authors":"Dulce Jazmín Hernández-Melchor, R. Ferrera-Cerrato, A. Alarcón","doi":"10.4067/S0719-38902019005000205","DOIUrl":"https://doi.org/10.4067/S0719-38902019005000205","url":null,"abstract":"","PeriodicalId":42485,"journal":{"name":"Chilean Journal of Agricultural & Animal Sciences","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4067/S0719-38902019005000205","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45034681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"TIPOLOGÍAS Y CARACTERIZACIÓN DE SISTEMAS DE CRÍA BOVINA DE LA PAMPA DEPRIMIDA","authors":"C. Faverin, Claudio Machado","doi":"10.4067/S0719-38902019005000101","DOIUrl":"https://doi.org/10.4067/S0719-38902019005000101","url":null,"abstract":"Identification and characterization of livestock systems help improve decision-making. In order to identify the typology of cow-calf systems from the Flooding Pampas, survey data of 115 farms were processed using 39 diagnostic variables. Data on farm structure, productivity indicators, forage resources, animal feeding practices, reproduction, animal health practices, and social information were analyzed. A cluster analysis was used to establish farm typologies. Four farm groups (G) were differentiated using cluster analysis: G1: Medium-scale technified farmer; G2: Mediumscale traditional farmer; G3: Large-scale technified local enterprise; and G4: Large-scale technified Chilean J. Agric. Anim. Sci., ex Agro-Ciencia (2019) 35(1): 4 3-13. enterprise. Overall mean stocking rate was 0.72 cow unit ha-1. The technified systems had better productivity indicators than the traditional systems. The main fodder resource was grasslands, accounting for 98% and 67-72% of traditional (98%) and technified (67-72%) systems, respectively. The diet in technified systems also included cultivated pastures (9-19%), and winter (8.2-8.9%) and summer fodder crops (4.7-5.5%). The technified systems mainly differed in terms of scale (P < 0.05) (499 to 1627 ha), legal ownership, farmer’s or farmer’s family’s place of residence (farm distance depending on G), recruitment of temporary staff (75 to > 92%), use and frequency of agricultural consultancy, adoption of different animal management practices, among others. This livestock farm typology may help agricultural institutions design specific technology transfer proposals.","PeriodicalId":42485,"journal":{"name":"Chilean Journal of Agricultural & Animal Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41528869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
C. Jobet, J. Zuniga, Dalma Castillo, R. Madariaga, Iván Matus, C. Alfaro
{"title":"KIRON INIA: WINTER WHEAT WITH TOLERANCE TO ACIDS SOILS OF SOUTHERN CHILE","authors":"C. Jobet, J. Zuniga, Dalma Castillo, R. Madariaga, Iván Matus, C. Alfaro","doi":"10.4067/S0719-38902019005000105","DOIUrl":"https://doi.org/10.4067/S0719-38902019005000105","url":null,"abstract":"‘Kiron INIA’ is a new wheat cultivar (Triticum aestivum L.) developed by the National Wheat Program at the Regional Experimental Center (CRI) Carillanca of the National Institute of Agricultural Research (INIA). The cultivar has medium plant height and late cycle; it is resistant to yellow rust (Puccinia striiformis West. f. sp. tritici Erikss) and oidium (Blumeria graminis D.C. f. sp. tritici Marchal), and moderately sensitive to leaf rust (Puccinia triticina f. sp. tritici Erikss y Henn) and septoria (Mycosphaerella graminicola (Fuckel) Sand). It is a high yielding winter wheat with good quality characteristics for direct baking, containing an allele of tolerance to soil acidity inherited from a parent. Its leaves are pale green, with a semi-erect flag leaf, with abundant cerosity (glaucosity) in the beam. The spike is white, decumbent, parallel in shape, high density, compact, with awns along its full length. The grain is round in shape, medium in size, and pale red in color. The height of the adult plant varies between 95 cm and 105 cm, with an average of 100 cm, and with Chilean J. Agric. Anim. Sci., ex Agro-Ciencia (2019) 35(1): 50 49-56. a stem of very good resistance to lodging. It is a high yielding cultivar (12.9 t ha-1) exceeding the commercial check in different localities and seasons.","PeriodicalId":42485,"journal":{"name":"Chilean Journal of Agricultural & Animal Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4067/S0719-38902019005000105","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70330665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lisandro Muñoz Alonzo, Ronald Rodríguez Riffo, María Cordero Laurie, Jaime Cruces Leal, Mario Briones Luengo
{"title":"LOCOMOTION PATTERNS OF STALL WALKING IN THOROUGHBRED HORSES","authors":"Lisandro Muñoz Alonzo, Ronald Rodríguez Riffo, María Cordero Laurie, Jaime Cruces Leal, Mario Briones Luengo","doi":"10.4067/s0719-38902019005000404","DOIUrl":"https://doi.org/10.4067/s0719-38902019005000404","url":null,"abstract":"","PeriodicalId":42485,"journal":{"name":"Chilean Journal of Agricultural & Animal Sciences","volume":"52 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70331307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"EFECTO DEL TIPO Y ORIENTACIÓN DE LA BOQUILLA EN LA APLICACIÓN DE PROTECTORES SOLARES EN FRUTOS DE PERA (Pyrus communis L.)","authors":"S. Behmer, F. Gonzalez, G. Colavita","doi":"10.4067/s0719-38902019005000502","DOIUrl":"https://doi.org/10.4067/s0719-38902019005000502","url":null,"abstract":"","PeriodicalId":42485,"journal":{"name":"Chilean Journal of Agricultural & Animal Sciences","volume":"17 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70331384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Julia Aros, Gonzalo Silva-Aguayo, Susana Fischer, I. Figueroa, J. C. Rodríguez-Maciel, A. Lagunes-Tejeda, Gloria Sarahi Castañeda-Ramírez, Liliana Aguilar-Marcelino
{"title":"ACTIVIDAD INSECTICIDA DEL ACEITE ESENCIAL DEL PAICO Chenopodium ambrosioides L. SOBRE Sitophilus zeamais Motschulsky","authors":"Julia Aros, Gonzalo Silva-Aguayo, Susana Fischer, I. Figueroa, J. C. Rodríguez-Maciel, A. Lagunes-Tejeda, Gloria Sarahi Castañeda-Ramírez, Liliana Aguilar-Marcelino","doi":"10.4067/s0719-38902019005000504","DOIUrl":"https://doi.org/10.4067/s0719-38902019005000504","url":null,"abstract":"Sitophilus zeamais is one of the major pests of stored cereals worldwide and its control is based on the use of synthetic insecticides, but their irrational use has caused environmental pollution and resistance. Essential oils have shown contact and fumigant insecticidal effect and could be an alternative to synthetic compounds. Hence, the insecticidal properties of essential oil of Chenopodium ambrosioides L. were assessed under laboratory conditions against adults of Sitophilus. zeamais. The variables studied were contact and fumigant toxicity, and antifeedant and repellent activity. Mortality by contact toxicity did not exceed 30% in all the treatments evaluated. The highest F1 reduction was observed in the treatment of 4.0% with 41.3% of emergence (58.7% of inhibition). Grain weight loss 283 Aros, J. et al. Aceite esencial de Chenopodium ambrosioides sobre Sitophilus zeamais was lower than 9.0% and maize germination was not affected. All treatments exhibited fumigant activity, while concentrations equal to or lower than 0.5% showed repellent and feeding deterrent effect. It can be concluded that essential oil of Ch. ambrosioides has potential for S. zeamais control.","PeriodicalId":42485,"journal":{"name":"Chilean Journal of Agricultural & Animal Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70331064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}