Revista de Ciencias Agrícolas最新文献_第2页

The Impact of Agricultural Credit on Banana cultivation in Valle del Cauca, Colombia 农业信贷对哥伦比亚考卡谷香蕉种植的影响

Revista de Ciencias Agrícolas Pub Date : 2023-05-05 DOI: 10.22267/rcia.20234001.201

Javier Rivera-Acosta, Xu Xiuchuan

{"title":"The Impact of Agricultural Credit on Banana cultivation in Valle del Cauca, Colombia","authors":"Javier Rivera-Acosta, Xu Xiuchuan","doi":"10.22267/rcia.20234001.201","DOIUrl":"https://doi.org/10.22267/rcia.20234001.201","url":null,"abstract":"This study aimed to explore the use and effect of agricultural credit disbursed from banks and financial institutions on banana yield in farmers from Valle del Cauca (Colombia) using data from the National Agricultural Census (2014). Additionally, it evaluated whether the effect of credit differs according to the items in which the farmer prefers to invest. For this purpose, because credits are not granted randomly, this research used the Propensity Score Matching (PSM) methodology to manage selection bias. Initially, it was found through the probit model that having one's own agricultural machinery, using chemical fertilization to improve soil fertility, not belonging to an ethnic minority, and having some type of basic or higher education, increases the probability of obtaining an agricultural credit. On the other hand, the results suggest that credit has positive and significant effects on crop yield (6.2%), but the effect is greater if it is invested in land purchase and post-harvest processes, with an increase of 39% and 37% in yield, respectively. On the other hand, this study also suggests that, if credit is invested in items not related to agricultural activity, yields can be affected with a 10% reduction. Finally, it is recommended that a public policy be implemented to encourage greater participation of banana farmers in Valle del Cauca in agricultural credit programs, given their low participation (10%) despite the high acceptability rate (86%).","PeriodicalId":211714,"journal":{"name":"Revista de Ciencias Agrícolas","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121613869","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

Response of commercial potato genotypes Solanum tuberosum L. to Phytophthora infestans (Mont.) de Bary late blight attack 商品马铃薯基因型对晚疫病的响应

Revista de Ciencias Agrícolas Pub Date : 2023-04-24 DOI: 10.22267/rcia.20234001.200

D. Rodriguez, P. Uribe, Carlos Andres Benavides

{"title":"Response of commercial potato genotypes Solanum tuberosum L. to Phytophthora infestans (Mont.) de Bary late blight attack","authors":"D. Rodriguez, P. Uribe, Carlos Andres Benavides","doi":"10.22267/rcia.20234001.200","DOIUrl":"https://doi.org/10.22267/rcia.20234001.200","url":null,"abstract":"Potato (Solanum tuberosum L.) cultivation is an important agricultural activity in the Andean region. The late blight Phytophthora infestans (Mont.) de Bary, considered one of the limiting diseases in production, represents a threat to food security and causes losses ranging from 30 to 100% of yield. This research evaluated the response to the disease in four commercial materials widely planted in the department of Nariño. The evaluation was carried out under field conditions, in the municipality of Pasto, at AGROSAVIA's Obonuco research center, with natural inoculum, under a randomized complete block design with four replications. The response variables evaluated were incidence, severity, leaf area index and yield in the commercial categories. The ICA Única variety, reported as highly resistant in 2001, presented damage levels close to 75%, with a yield reduction of 49.88%, caused mainly by low yields of first category tubers, indicating a loss of its level of resistance, with damage levels similar to the highly susceptible control Diacol Capiro, which presented 100% of the area with symptoms of the disease and a reduction of 89% in yield. The genotypes Pastusa Suprema with disease tolerance characteristics and Superior showed the best performance with a severity level of 30% in each case and yield reductions of 30.5% and 40.92%, respectively. The results highlight the importance of these genotypes and their role as pillars in the integrated management of the disease through the planting of varieties with favorable behavior against the disease.","PeriodicalId":211714,"journal":{"name":"Revista de Ciencias Agrícolas","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114690705","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

Use of Trained Convolutional Neural Networks for Analysis of Symptoms Caused by Botrytis fabae Sard 利用训练卷积神经网络分析豆芽孢杆菌引起的症状

Revista de Ciencias Agrícolas Pub Date : 2023-04-24 DOI: 10.22267/rcia.20234001.198

D. Alvarez-Sánchez, Anderson Arévalo, I. F. Benavides, C. Salazar-González, Carlos Betancourth

引用次数: 0

Metabolic indicators and their relationship with reproductive efficiency in dairy cows in the high tropics 高热带地区奶牛代谢指标及其与繁殖效率的关系

Revista de Ciencias Agrícolas Pub Date : 2023-04-20 DOI: 10.22267/rcia.20234001.203

G. Zambrano-Burbano, R. Campos-Gaona, Edmundo Apráez-Guerrero

{"title":"Metabolic indicators and their relationship with reproductive efficiency in dairy cows in the high tropics","authors":"G. Zambrano-Burbano, R. Campos-Gaona, Edmundo Apráez-Guerrero","doi":"10.22267/rcia.20234001.203","DOIUrl":"https://doi.org/10.22267/rcia.20234001.203","url":null,"abstract":"The specialized herds of the high tropics of Nariño are characterized by semi-intensive breeding models, that is, feeding based on grazing and supplementation. The objective was to analyze the milk production of grazing Holstein cows under conditions of the high tropics, taking into account the energetic and protein metabolites, and their relationship with the dry matter intake (CMS/Kg/d), the body condition (BC), and the reproductive variables. Three periods of lactation were evaluated, thus, between 4-10 days (P1), 45-55 days (P2), and between 185-200 days (P3). The investigation was carried out in four dairy production farms. The forage supply consisted of a mixture of Lolium hybridum, Cenchrus clandestinus Hoschst ex Chiov, Holcus lanatus and Trifolium repens, plus commercial concentrate. A total of 24 Holstein animals (six per productive system) from three births onwards were used, from which blood samples were obtained to determine: non-esterified fatty acids (NEFA), beta-hydroxybutyrate (BHB), triglycerides, cholesterol, glucose, total protein (PT), and blood urea nitrogen (BUN). The results showed that milk production during P1 is influenced by CC and body weight (Kg) by +0.04 liters of milk per unit of change in this variable. In P2, the positive incidence variables were PT, BUN, glucose, NEFA, BHB, triglycerides, and cholesterol, and in P3, the increase in CMS made it possible to show that as lactation progresses in more than 180 days, the animals substantially improve their body condition; likewise the NEFA and BHB indicators are related to a better reproductive response.","PeriodicalId":211714,"journal":{"name":"Revista de Ciencias Agrícolas","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115520090","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

Effect of microencapsulated Lactobacillus reuteri under simulated gastric conditions and its inhibition on Listeria monocytogenes 模拟胃条件下微囊化罗伊氏乳杆菌对单核增生李斯特菌的抑制作用

Revista de Ciencias Agrícolas Pub Date : 2023-04-15 DOI: 10.22267/rcia.20234001.202

H. Jurado-Gámez, Jhon-Fredy Cerón-Córdoba, Juan Carlos Bolaños-Bolaños

{"title":"Effect of microencapsulated Lactobacillus reuteri under simulated gastric conditions and its inhibition on Listeria monocytogenes","authors":"H. Jurado-Gámez, Jhon-Fredy Cerón-Córdoba, Juan Carlos Bolaños-Bolaños","doi":"10.22267/rcia.20234001.202","DOIUrl":"https://doi.org/10.22267/rcia.20234001.202","url":null,"abstract":"Food-borne diseases (FDB) are responsible for causing approximately 600 million illnesses and 420,000 deaths per year. Biologically related FBDs are typically associated with ubiquitous microorganisms, with bacteria such as Li. monocytogenes, Escherichia coli, Salmonella and Staphylococcus aureus being frequently implicated. The use of probiotics is limited by adverse conditions, that can impair the stability of La. reuteri and the evaluation of its probiotic properties and effects on pathogenic bacteria. Therefore, it is crucial to develop effective strategies to protect probiotics during their use. This study was conducted aiming to determine the effect of microencapsulation by spray drying technique on the probiotic viability of La. reuteri on Li. monocytogenes under simulated gastric conditions. The research involved reconstituting, planting, and inoculating La. reuteri and Li. monocytogenes; determining fermentation kinetics; conducting spray drying microencapsulation; studying and characterizing of microencapsulation; testing for exopolysaccharides production; conducting temperature tests; assessing exposure to gastric conditions; and conducting antibiotic susceptibility and inhibition tests. Such investigations allowed the establishment of the exponential phase in Probiotic (PRO) culture medium at 18 h and in De Man, Rogosa and Sharpe agar (MRS) medium at 12 h, exopolysaccharide production positive and growth at different temperatures (1.95x1013 CFU/ml and 2.16x1012 CFU/ml), survival against gastric conditions (greater than 108 CFU/ml) and inhibitory effect of La. reuteri on Li. monocytogenes (halos larger than 2 mm). The probiotic La. reuteri microencapsulated in a binary matrix composed of inulin and maltodextrin expresses probiotic properties against Li. monocytogenes, which is responsible for FBD and great stability after undergoing simulated gastric conditions.","PeriodicalId":211714,"journal":{"name":"Revista de Ciencias Agrícolas","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130123358","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

Socioeconomic analysis of cocoa (Theobroma cacao L) agroforest in a tropical dry forest 热带干旱林可可混交林的社会经济分析

Revista de Ciencias Agrícolas Pub Date : 2023-01-24 DOI: 10.22267/rcia.223902.186

Jesús-Geovanny Solarte-Guerrero, William Ballesteros-Possú, J. F. Navia

{"title":"Socioeconomic analysis of cocoa (Theobroma cacao L) agroforest in a tropical dry forest","authors":"Jesús-Geovanny Solarte-Guerrero, William Ballesteros-Possú, J. F. Navia","doi":"10.22267/rcia.223902.186","DOIUrl":"https://doi.org/10.22267/rcia.223902.186","url":null,"abstract":"The characterization of production systems is important to determine limitations and potentialities that allow their management. This type of diagnosis has not been carried out in the study region; therefore, there is no information on cocoa-based agroforestry systems. Therefore, traditional cocoa farms in the municipality of Los Andes, department of Nariño (Colombia), were social and economically characterized. Basic information was reviewed and a semi-structured survey was applied to a stratified random sample of 60 cocoa farmers. Eighteen qualitative and 20 quantitative variables were analyzed simultaneously with multiple correspondence analysis (MCA) and principal components analysis (PCA). In the PCA, five components explained 58.7% of the variability. The variables with the highest contribution were farm area, income from cocoa yields, income from agricultural production other than cocoa, and family labor. In the MCA, 11 components explained 58.43% of the variability. The most important components were farmers' schooling, transport type, loans, marketing, technical assistance, gender, land tenure, production systems, roads, and domestic animals. Finally, topographic and climatic conditions, inadequate roads and marketing of cocoa and the low adoption of technologies limit the competitiveness of the cocoa farms, hence the need to create favorable conditions to enhance the potential of cocoa agroforests.","PeriodicalId":211714,"journal":{"name":"Revista de Ciencias Agrícolas","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128378310","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

Bio regulation of Meloidogyne incognita (Kofoid & White) Chitwood and M. javanica (Treub) Chitwood complex in coffee roots 咖啡根中栗壳木和栗壳木复合物的生物学调控

Revista de Ciencias Agrícolas Pub Date : 2023-01-24 DOI: 10.22267/rcia.223902.189

Angela Maria Castro-Toro, Carlos Alberto Rivillas-Osorio

{"title":"Bio regulation of Meloidogyne incognita (Kofoid & White) Chitwood and M. javanica (Treub) Chitwood complex in coffee roots","authors":"Angela Maria Castro-Toro, Carlos Alberto Rivillas-Osorio","doi":"10.22267/rcia.223902.189","DOIUrl":"https://doi.org/10.22267/rcia.223902.189","url":null,"abstract":"The Meloidogyne incognita and M. javanica complex cause damage to the coffee plants’ roots with loss of productive potential. Traditional management against this complex is based on the use of chemical molecules which causes problems in soil health and harmful to the environment. In this regard, the Micosplag® biotechnological input [Paecilomyces lilacinus (Thom) Samson, 1974, Metarhizium anisopliae (Metsch) Sorokin and Beauveria bassiana (Balsamo) Vuillemin] and Tricho-D® (Trichoderma harzianum Rifai, 1969) were evaluated under greenhouse conditions against root-knot nematode complex. A dose of 2g. L-1 of water was used for Micosplag® and 10g. L-1 of water for Tricho-D®, applying a volume of 20mL.1 per plant. The nematode inoculation was carried out eight days after the sowing, using 2500 eggs per plant. Bioinputs were applied preventively and also as bioregulators of an existing nematodes population. Nine treatments, which corresponded to different moments of application of bioinputs in soil and soil plus vermocompost were evaluated. Results showed the lowest levels of infection when the Micosplag® bioinput was applied preventively (infection level of 6%), followed by the Tricho-D® treatment (infection 12%). There were statistical differences with the controls which were inoculated alone with the nematodes. When the two Bioinputs were applied preventively, they offered greater protection to the roots against nematodes. Dry weights of root and the aerial part of the plants showed the lowest values in treatments where the nematode was inoculated. Six months after the experiment was established, the three fungi that compose the Micosplag® Bioinput were isolated from the rhizosphere of the coffee plants.","PeriodicalId":211714,"journal":{"name":"Revista de Ciencias Agrícolas","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131189276","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

Correlative analysis of climate impacts in an Andean municipality of Colombia 哥伦比亚安第斯市气候影响的相关分析

Revista de Ciencias Agrícolas Pub Date : 2022-12-27 DOI: 10.22267/rcia.223902.188

Luis Carlos Ortega, J. Cañón

{"title":"Correlative analysis of climate impacts in an Andean municipality of Colombia","authors":"Luis Carlos Ortega, J. Cañón","doi":"10.22267/rcia.223902.188","DOIUrl":"https://doi.org/10.22267/rcia.223902.188","url":null,"abstract":"The municipality of Pasto (Colombia) is an intermediate, emerging city of the Colombian Andes, which is vulnerable to the impacts of climate change due to its environmental conditions, mountainous morphology, moderately humid climate, and socio-economic structure. This research aims at identifying the impacts of historical trends in climate variables on the main urban elements of the municipality of Pasto. The study uses the correlational method to determine the relationships between climate variables and some impacted urban elements between 2004 and 2019. The adjusted models allow identifying possible trajectories in the evolution of urban variables affected by climate change, population growth, and culture. Results show that climate variability produces negative quadratic trajectories in crop yields and flood events; positive quadratic patterns in landslides, forest fires, the prevalence of acute diarrheal diseases (ADD), and acute respiratory infections (ARI); and linear patterns in water availability, livestock production and food security. In general, the urban variables show a departure from equilibrium when exposed to higher temperatures and precipitation, which affect the reliability of crop yields, food security, water availability, natural disasters, and public health in the municipality of Pasto.","PeriodicalId":211714,"journal":{"name":"Revista de Ciencias Agrícolas","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129389922","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

Agronomic behavior of broad bean genotypes for the Colombian high andean zone 哥伦比亚安第斯高地地区蚕豆基因型的农艺行为

Revista de Ciencias Agrícolas Pub Date : 2022-12-27 DOI: 10.22267/rcia.223902.190

D. Alvarez-Sánchez, B. Sañudo, C. Salazar-González, Carlos Betancourth

{"title":"Agronomic behavior of broad bean genotypes for the Colombian high andean zone","authors":"D. Alvarez-Sánchez, B. Sañudo, C. Salazar-González, Carlos Betancourth","doi":"10.22267/rcia.223902.190","DOIUrl":"https://doi.org/10.22267/rcia.223902.190","url":null,"abstract":"Broad bean cultivation is considered a productive strategy and a component of food sovereignty in Southern Colombia. Therefore, this study was carried out in order to evaluate twelve promising genotypes and two commercial controls, to expand the improved varieties supply of this legume in the future. For this, an experimental assay was established with 14 treatments and four repetitions. Where, 13 agronomic traits and the reaction to the pathogen Botrytis fabae were estimated. The information was analyzed by a simple ANOVA test. Also, a Principal Component Analysis (PCA) was developed with the traits with the highest coefficient of variation. Results showed genetic diversity, with promising genotypes in relation to the controls. The number of stems, flowering days, pod formation days, pods per plant, weight of one hundred seeds, and yield allowed three groups to be identified by PCA. The first one was made up of two controls, the second group characterized by higher yields, and a third group represented by an intermediate yield added to an earliness condition. These results allow the recognition of candidate genotypes to be included into breeding programs and contribute to the crop protection.","PeriodicalId":211714,"journal":{"name":"Revista de Ciencias Agrícolas","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130367929","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

Identification of potential agronomic lines among Nigerian pigeonpea (Cajanus cajan L. Millsp.) accessions for crop improvement 尼日利亚信鸽(Cajanus cajan L. Millsp.)作物改良潜在农艺品系的鉴定

Revista de Ciencias Agrícolas Pub Date : 2022-12-22 DOI: 10.22267/rcia.202239e.192

O. Amusa, Fidelis Etuh Okpanachi, Samuel Chimezie Onyeka, Jonathan Samson Damilola, Elizabeth Oluwaseun Olatunji, L. A. Ogunkanmi, Bolanle Olufunmilayo Oboh

{"title":"Identification of potential agronomic lines among Nigerian pigeonpea (Cajanus cajan L. Millsp.) accessions for crop improvement","authors":"O. Amusa, Fidelis Etuh Okpanachi, Samuel Chimezie Onyeka, Jonathan Samson Damilola, Elizabeth Oluwaseun Olatunji, L. A. Ogunkanmi, Bolanle Olufunmilayo Oboh","doi":"10.22267/rcia.202239e.192","DOIUrl":"https://doi.org/10.22267/rcia.202239e.192","url":null,"abstract":"Pigeonpea (Cajanus cajan (L.) Millsp.) is a grain legume crop from the tropics and subtropics cultivated for its highly nutritious seeds. Relatively low yields have been observed among African accession with little information on germplasm performance. Therefore, it is needed to identify resilient germplasm, varieties or accessions to improve agronomic performance. This study assessed the morphological variability among selected accessions of Nigerian pigeonpea to identify potential lines for agronomic improvement. A total of 52 Nigerian pigeonpea accessions were evaluated using 10 qualitative and 13 quantitative morphological traits. They were planted using a completely randomised design. Yield performance, trait correlation, principal component (PC), and cluster analysis were used to identify potential breeding lines. The study revealed a wide variability among pigeonpea accessions with both qualitative and quantitative traits. The 52 pigeonpeas were clustered into three major groups. Four principal components with eigenvalue > 1 accounted for 68.95% of the total variation observed. The first PC accounted for 30.13% with yield components, which include days to 50% flowering, plant height, days to 50% maturity, and vigour at 50% flowering as major contributors. These traits also showed strong significant correlations between themselves. Hence, they can be improved simultaneously. The study identified several potential accessions based on performance that can be selected for multilocational evaluations and crop improvement.","PeriodicalId":211714,"journal":{"name":"Revista de Ciencias Agrícolas","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114967719","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