Chilean Journal of Agricultural & Animal Sciences最新文献_第2页

EARLY GROWTH MODEL OF PELIBUEY LAMBS RAISED UNDER AN INTENSIVE PRODUCTION SYSTEM IN COLIMA, MEXICO 在墨西哥科利马集约化生产系统下饲养的pelibuey羔羊的早期生长模型

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Chilean Journal of Agricultural & Animal Sciences Pub Date : 2021-03-01 DOI: 10.29393/chjaas37-24egra50024

R. Macedo, Victalina Arredondo, A. Jiménez, C. Haubi, A. Herrera

{"title":"EARLY GROWTH MODEL OF PELIBUEY LAMBS RAISED UNDER AN INTENSIVE PRODUCTION SYSTEM IN COLIMA, MEXICO","authors":"R. Macedo, Victalina Arredondo, A. Jiménez, C. Haubi, A. Herrera","doi":"10.29393/chjaas37-24egra50024","DOIUrl":"https://doi.org/10.29393/chjaas37-24egra50024","url":null,"abstract":"The aim of this study was to describe the early growth of Pelibuey lambs raised under an intensive production system in Colima, Mexico, using non-linear models. Weight data were collected from 433 lambs every 30 days from birth to 180 days of age, and growth curves were estimated using non-linear and linear models. According to goodness of fit criteria, the Linear, Gompertz, Logistic and Von Bertalanffy models are suitable and show a reasonable fit for describing Pelibuey lamb’s growth, the Brody and Richards curves did not meet the convergence criterion. The parameter A denotes asymptotic weight; weight was higher in multiple born males and quadruplet born females in the Von Bertalanffy and Gompertz models, while it was also higher in males in the Logistic model. The parameter k represents maturation rate and indicates the growth speed in reaching asymptotic weight, being higher in single and twin females, and single males in all the non-linear models. From birth up to 90 days of age (weaning), weight of single lambs becomes greater than that of multiple born lambs, but from 90 days of age, weight of multiple born lambs tends to equal that of singles, which happens at 180 days of age. The early growth of Pelibuey lambs can be described with similar precision using linear and non-linear models.","PeriodicalId":42485,"journal":{"name":"Chilean Journal of Agricultural & Animal Sciences","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43882137","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}

引用次数: 0

ANÁLISIS DE LA AGROINDUSTRIA CHILENA DEL AGUACATE (PALTA) EN EL MERCADO INTERNACIONAL 智利牛油果农工业在国际市场上的分析

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Chilean Journal of Agricultural & Animal Sciences Pub Date : 2021-03-01 DOI: 10.29393/CHJAAS37-6AAWG30006

Willmer Guevara, Carmen Hidalgo-Alcázar, J. L. Rojas

引用次数: 1

CAPACIDAD BIOCONTROLADORA DE AISLAMIENTOS NATIVOS DE Trichoderma sp. CONTRA EL HONGO FITOPATÓGENO Alternaria alternata, AISLADO DE YERBA MATE (Ilex paraguariensis Saint Hil.) 木霉本地分离株对巴拉圭YERBA MATE (Ilex paraguariensis Saint Hil)植物病原真菌Alternaria alternata的生物防治能力。

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Chilean Journal of Agricultural & Animal Sciences Pub Date : 2021-03-01 DOI: 10.29393/chjaas37-26cbml50026

M. Castrillo, G. Bich, Gastón Sioli, P. Zapata, L. Villalba

{"title":"CAPACIDAD BIOCONTROLADORA DE AISLAMIENTOS NATIVOS DE Trichoderma sp. CONTRA EL HONGO FITOPATÓGENO Alternaria alternata, AISLADO DE YERBA MATE (Ilex paraguariensis Saint Hil.)","authors":"M. Castrillo, G. Bich, Gastón Sioli, P. Zapata, L. Villalba","doi":"10.29393/chjaas37-26cbml50026","DOIUrl":"https://doi.org/10.29393/chjaas37-26cbml50026","url":null,"abstract":"Phytopathogenic fungi attack many agricultural crops such as yerba mate (Ilex paraguariensis Saint Hil.). An innovative alternative for pest control is the use of biocontrol fungi of Trichoderma genus. The objectives of the present work were to isolate the fungal agents that cause foliar lesions in yerba mate, and to evaluate the antagonistic capacity of native Trichoderma sp. isolates against pathogens in this crop. From diseased plant-tissues, a phytopathogenic fungus belonging to Alternaria alternata species was isolated and identified morphologically and molecularly. Pathogenicity assays were done on yerba mate plants in triplicate. Superficial mechanical lesions were made on them and the phytopathogenic isolation obtained (conidia and mycelium) was inoculated to evaluate their phytopathogenic capacity. New dual culture methods were determined to evaluate in vitro antagonism of Trichoderma. The in vitro biocontrol capacity of 30 Trichoderma isolates was evaluated against the phytopathogenic isolation obtained. As a positive control, a strain isolated from a commercial fungicide product based on T. harzianum was used. It was determined that 18 of the 30 isolates of Trichoderma inhibited the growth of the phytopathogen A. alternata by more than 50%, and presented statistically significant differences with respect to the positive control. These results confirm the effectiveness of using native biocontrol isolates adapted to the climatic and soil conditions where the phytopathogenic microorganisms are found.","PeriodicalId":42485,"journal":{"name":"Chilean Journal of Agricultural & Animal Sciences","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43047233","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}

引用次数: 1

PROTOCOLO DE REGENERACIÓN DE Calibrachoa var. PAMPA SALMÓN INTA A PARTIR DE MERISTEMAS APICALES 从顶端分生组织再生Calibrachoa var. PAMPA salmon INTA的方案

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Chilean Journal of Agricultural & Animal Sciences Pub Date : 2020-08-01 DOI: 10.29393/chjaas36-10el30010

Leticia Tombion, A. Kato, M. S. Soto

引用次数: 0

INFLUENCIA DE CUBIERTAS VEGETALES EN LA DISPONIBILIDAD DE AGUA Y RENDIMIENTO EN VIÑEDOS DE SECANO 植被覆盖对旱地葡萄园水分有效性和产量的影响

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Chilean Journal of Agricultural & Animal Sciences Pub Date : 2020-08-01 DOI: 10.29393/CHJAAS36-12ICCQ40012

Celerino Quezada, M. Sandoval, C. Ovalle, V. Pérez

引用次数: 0

ESTUDIO DE COMPUESTOS VEGETALES CON POTENCIAL ACCIÓN ANTIFÚNGICA SOBRE PATÓGENOS DE PLANTAS CULTIVADAS 对栽培植物病原菌具有潜在抗真菌作用的植物化合物研究

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Chilean Journal of Agricultural & Animal Sciences Pub Date : 2020-03-01 DOI: 10.29393/chjaas36-23ecpb30023

P. Badaracco, Maximiliano Sortino, R. Pioli

{"title":"ESTUDIO DE COMPUESTOS VEGETALES CON POTENCIAL ACCIÓN ANTIFÚNGICA SOBRE PATÓGENOS DE PLANTAS CULTIVADAS","authors":"P. Badaracco, Maximiliano Sortino, R. Pioli","doi":"10.29393/chjaas36-23ecpb30023","DOIUrl":"https://doi.org/10.29393/chjaas36-23ecpb30023","url":null,"abstract":"Pathogenic fungi generate crop diseases, and affect yield and food production. The use of phytosanitary products to control fungal diseases can pose a risk to human health and the environment. In this context, the use of plant metabolites as potential bio-controls for pathogens turns out to be a sustainable alternative. The objective of this study was to evaluate the anti-fungal action of six compounds of plant origin: daidzein, genistein, two chalcones, vanillin and iso-vanillin, on the in vitro growth of pathogens. The Minimum Inhibitory Concentration (MIC) and the Minimum Fungicidal Concentration (CFM) of each chemical compound were evaluated by the broth micro-dilution method against five fungal genera: Alternaria sp., Cladosporium sp., Fusarium (F. graminearum, F. subglutinans, F. proliferatum, F. oxysporum ), Phomopsis longicolla, and Rhizopus stolonifer . The results indicated that daidzein, genistein, iso-vanillin and CH1 did not show an inhibitory and / or fungicidal action at concentrations lower that 250 µg mL -1 . CH2 was characterized by inhibiting four isolates belonging to three genera in different concentrations, and presenting fungicidal activity on two of them. Vanillin proved to be effective to inhibit and / or eliminate all of the isolates (nine) included in the five fungal genera evaluated at concentrations below 250 µg mL -1 . It is concluded that metabolites of plant origin such as vanillin and CH2 presented antifungal capacity in different degrees and specificity on the isolates.","PeriodicalId":42485,"journal":{"name":"Chilean Journal of Agricultural & Animal Sciences","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45096605","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}

引用次数: 0

RITMO DE CRECIMIENTO, PRODUCCIÓN DE BIOMASA Y DINÁMICA DE MOVILIZACIÓN DE CARBOHIDRATOS EN UN CULTIVO DE Adesmia bicolor (POIR.) DC (FABACEAE) 两色不干胶培养的生长速率、生物量生产和碳水化合物动员动态(POIR.)特区FABACEAE)

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Chilean Journal of Agricultural & Animal Sciences Pub Date : 2020-03-01 DOI: 10.29393/chjaas36-15rcvp80015

Verónica Pérez, Mercedes Panzitta, Carla Vidal, S. Basconsuelo, J. Gorjon, Dámaris Fitzimons, Rosa Malpassi, Luciana Bianco

{"title":"RITMO DE CRECIMIENTO, PRODUCCIÓN DE BIOMASA Y DINÁMICA DE MOVILIZACIÓN DE CARBOHIDRATOS EN UN CULTIVO DE Adesmia bicolor (POIR.) DC (FABACEAE)","authors":"Verónica Pérez, Mercedes Panzitta, Carla Vidal, S. Basconsuelo, J. Gorjon, Dámaris Fitzimons, Rosa Malpassi, Luciana Bianco","doi":"10.29393/chjaas36-15rcvp80015","DOIUrl":"https://doi.org/10.29393/chjaas36-15rcvp80015","url":null,"abstract":"Native perennial legumes are an important component of rangelands in many parts of the world and may contribute to improve the nutritional value of natural and cultivated grazing systems. In the arid and semi-arid central region of Argentina, the domestication of species with forage potential, such as Adesmia bicolor (Poir.) DC, has begun. The objective of this work was to evaluate a crop of Adesmia bicolor (Poir.) DC and relate crop growth to biomass production, and carbohydrate mobilization dynamics during one year. To evaluate growth dynamics, seedlings and adult plants https://doi.org/10.29393/CHJAAS36-15RCVP80015 Chilean J. Agric. Anim. Sci., ex Agro-Ciencia (2020) 36(3): 172 171-180. were selected, and vegetative and reproductive variables were recorded every 7 to 10 days. In addition, aerial and ground biomass samples were taken in an area of 0,0625 m2 every 60 days and processed to determine carbohydrate mobilization dynamics. The low stem:root ratio observed in the seedlings and the clonal growth of A. bicolor adults plants favor the establishment and development of the crop, reaching its maximum vegetative growth in winter/spring. This maximum growth is determined by high cotyledonary and prophyllar branching with increased internode length. The indefinite life cycle guarantees an important photosynthetic rate that allows for not only crop persistence, but also enough carbohydrate concentration in roots and stolons, which permits a rapid recovery during regrowth. These results indicate that A. bicolor is a species that has desirable attributes for forage production.","PeriodicalId":42485,"journal":{"name":"Chilean Journal of Agricultural & Animal Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41844661","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}

引用次数: 0

NÚMERO CROMOSÓMICO DE UNA POBLACIÓN DE ALSTROEMERIA PELEGRINA L. (ALSTROEMERIACEAE), ESPECIE ENDÉMICA DE CHILE 智利特有种ALSTROEMERIA PELEGRINA L. (ALSTROEMERIACEAE)种群的染色体数目

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Chilean Journal of Agricultural & Animal Sciences Pub Date : 2020-03-01 DOI: 10.29393/chjaas36-9nc30009

Carlos M. Baeza, Pedro Carrasco, Nicolás Villalobos

引用次数: 1

VALIDACIÓN DEL ÍNDICE DE ESTRÉS HÍDRICO DE CULTIVO (CWSI) MEDIANTE TERMOGRAFÍA INFRAROJA Y SU INCIDENCIA EN RENDIMIENTO Y CALIDAD EN MANZANAS ‘ROYAL GALA’ 用红外热像仪验证作物水分胁迫指数及其对“皇家晚会”苹果产量和质量的影响

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Chilean Journal of Agricultural & Animal Sciences Pub Date : 2020-03-01 DOI: 10.29393/chjaas36-18vicq50018

Celerino Quezada, Richard M. Bastías, R. Quintana, Raimundo Arancibia, A. Solís

{"title":"VALIDACIÓN DEL ÍNDICE DE ESTRÉS HÍDRICO DE CULTIVO (CWSI) MEDIANTE TERMOGRAFÍA INFRAROJA Y SU INCIDENCIA EN RENDIMIENTO Y CALIDAD EN MANZANAS ‘ROYAL GALA’","authors":"Celerino Quezada, Richard M. Bastías, R. Quintana, Raimundo Arancibia, A. Solís","doi":"10.29393/chjaas36-18vicq50018","DOIUrl":"https://doi.org/10.29393/chjaas36-18vicq50018","url":null,"abstract":"Infrared thermography is an efficient methodology to monitor plant water status under field conditions. The objective of this research was to validate the use of Crop Water Stress Index (CWSI) as an indicator of plant water status in ‘Royal Gala` apples and evaluate its effect on yield and fruit quality in the Ñuble Region, Chile. The experimental design was completely randomized blocks with two water treatments: irrigated and non-irrigated. Canopy temperature, soil moisture, xylem water potential (Ψx), fruit yield and fruit quality were evaluated. The results showed significant differences between the treatments and a moderate positive correlation between xylem water potential and CWSI (R2 = 0.67). Fruit yield and quality showed significant differences between the treatments; the non-irrigated treatment presented a decrease in size and yield, but an increase in the amount of total soluble solids. The CWSI was not a good indicator of plant water status, fruit yield or fruit quality in ‘Royal Gala’ apples.","PeriodicalId":42485,"journal":{"name":"Chilean Journal of Agricultural & Animal Sciences","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46234956","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}

引用次数: 0

EFECTO DEL LIMADO DE LOS DIENTES DE AGUJA EN LECHONES SOBRE EL RENDIMIENTO AL DESTETE 断奶仔猪尖牙锉削对断奶性能的影响

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Chilean Journal of Agricultural & Animal Sciences Pub Date : 2020-03-01 DOI: 10.29393/chjaas36-19elcc60019

Carlota Catalán, M. Tejedor, Luis Pico, O. Mitjana, Cristina Bonastre, M. V. Falceto

引用次数: 0