Revista De La Facultad De Agronomia De La Universidad Del Zulia最新文献

Agroforestry and its vital role in climate change mitigation in the tropics 农林业及其在热带地区减缓气候变化中的重要作用

4区农林科学

Revista De La Facultad De Agronomia De La Universidad Del Zulia Pub Date : 2023-11-11 DOI: 10.47280/revfacagron(luz).v40.supl.02

Rosa Razz, Larry Leon-Medina

引用次数: 0

Vinegar elaboration from cherry fruit discard (Prunus cerasus L.) 用废弃樱桃制作醋(Prunus cerasus L.)

4区农林科学

Revista De La Facultad De Agronomia De La Universidad Del Zulia Pub Date : 2023-11-10 DOI: 10.47280/revfacagron(luz).v40.n4.03

Nelson Loyola, Sergio Lagos, Carlos Acuña, Mariela Arriola

{"title":"Vinegar elaboration from cherry fruit discard (Prunus cerasus L.)","authors":"Nelson Loyola, Sergio Lagos, Carlos Acuña, Mariela Arriola","doi":"10.47280/revfacagron(luz).v40.n4.03","DOIUrl":"https://doi.org/10.47280/revfacagron(luz).v40.n4.03","url":null,"abstract":"The production of vinegar from the fermentation of cherry (Prunus cerasus) discard was experimentally evaluated. Four treatments were used: filtered vinegar, unfiltered vinegar, pasteurized vinegar and vinegar with metabisulfite. The physicochemical and organoleptic characteristics and their acceptability were determined through a completely randomized experimental design with three (3) repetitions per treatment. The data were analyzed according to an analysis of variance, with a 95% confidence level to determine possible significant differences between the treatments. The parameters were measured; soluble solids, density, pH, sodium chloride and acidity. Also, a sensory analysis of the attributes was carried out; color, aroma, texture and flavor, with 33 trained panelists, in order to evaluate the organoleptic characteristics and acceptance of each of the samples. The cherry vinegar prepared and evaluated after 5, 20 and 35 days did not show significant differences in its physicochemical characteristics. The panelists perceived more differences in sensory attributes when the vinegar was pasteurized according to the treatment (T2). The panelists did not vary their perception of the acceptability of vinegar, regardless of the treatment applied. Key Words: substitute, fermentation, acetic acidity.","PeriodicalId":54470,"journal":{"name":"Revista De La Facultad De Agronomia De La Universidad Del Zulia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135136610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Regenerative livestock or sustainable livestock? 再生家畜还是可持续家畜?

4区农林科学

Revista De La Facultad De Agronomia De La Universidad Del Zulia Pub Date : 2023-11-08 DOI: 10.47280/revfacagron(luz).v40.supl.01

Fatima Urdaneta

{"title":"Regenerative livestock or sustainable livestock?","authors":"Fatima Urdaneta","doi":"10.47280/revfacagron(luz).v40.supl.01","DOIUrl":"https://doi.org/10.47280/revfacagron(luz).v40.supl.01","url":null,"abstract":"Sustainability has been recognized as a fundamental principle of development so that humanity can survive on this planet. However, there are still difficulties in translating its philosophical principles into the ability to make concrete decisions for its consolidation. Three factors that determine growth on planet earth, directly related to agricultural systems, have been identified: agricultural production, management of natural resources, and pollution. Therefore, sustainable agriculture must consider them both for the management of plant and animal populations, since both modify the environment to adapt it to their requirements, thus regenerative practices arise to recover the ability of ecosystems to restore themselves. In that sense, it is intended in this review to elucidate how the concepts and principles exposed are translated into a regenerative or a sustainable livestock. To achieve sustainability, it is necessary and essential, an integral management of processes with a holistic vision of the system by farmers and technicians, leading human talents willing to learn different and new technologies, and motivated trained personnel in sustainable techniques that incorporate agroecological and regenerative practices, all on the basis of financial planning. Regenerative livestock per se as an emerging paradigm is very promising, but still requires local research. It is concluded that there is no single model of sustainable livestock, there are no recipes or technological packages, it is governed by the principles that aim at the balance of its dimensions (social, economic, environmental and institutional political governance).","PeriodicalId":54470,"journal":{"name":"Revista De La Facultad De Agronomia De La Universidad Del Zulia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135340496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficiency of entomopathogenic bacteria and fungi on Oligonychus yothersi in vitro and on Persea americana Mill. plants 昆虫病原细菌和真菌对褐绒少爪螨和美洲洋槐的抑菌效果研究。植物

4区农林科学

Revista De La Facultad De Agronomia De La Universidad Del Zulia Pub Date : 2023-11-03 DOI: 10.47280/revfacagron(luz).v40.n4.02

Jhimy Parco, Agustina Valverde-Rodriguez, Antonio Cornejo, Henry Briceño, Laura Barrionuevo, Javier Romero

{"title":"Efficiency of entomopathogenic bacteria and fungi on Oligonychus yothersi in vitro and on Persea americana Mill. plants","authors":"Jhimy Parco, Agustina Valverde-Rodriguez, Antonio Cornejo, Henry Briceño, Laura Barrionuevo, Javier Romero","doi":"10.47280/revfacagron(luz).v40.n4.02","DOIUrl":"https://doi.org/10.47280/revfacagron(luz).v40.n4.02","url":null,"abstract":"In the germplasm bank of 22 varieties of avocado (Persea Americana Mill.) belonging to the Fruit Horticultural Institute Investigation, HermilioValdizan National University (UNHEVAL)-Peru, it is common to observe a high population of the species Oligonychusyothersi, a phytophagous mite harmful to the crop. Controls with commercial acaricides are restricted in place, due to the presence of beehives installed in adjacent plots. The objective of this study was to evaluate the effect of four commercial formulations containing strains of Metarhiziumanisopliae and Beauveria bassiana and the toxins of Bacillussubtilis, Bacillus thuringiensis var.kurstaki (Btk) for the control of O. yothersi. The entomopathogenic products were evaluated in the field applying a randomized complete block design with five treatments and three replicates. In the laboratory, 500 adult mites were selected, placing 100 mites per Petri dish with three repetitions per treatment. It was found that the formulation Bacillus thuringiensis var.kurstaki under field conditions reduced the population incidence of mites by up to 98.07% in 49 days. In the laboratory, the B. subtilis and M. anisopliae formulations caused 100% mortality six days after application proving to be efficient control alternatives.","PeriodicalId":54470,"journal":{"name":"Revista De La Facultad De Agronomia De La Universidad Del Zulia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135819018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Maturation and germination of somatic embryos of guava var. Cuban Red Dwarf EEA-1840 古巴红矮星EEA-1840番石榴体细胞胚的成熟和萌发

4区农林科学

Revista De La Facultad De Agronomia De La Universidad Del Zulia Pub Date : 2023-09-30 DOI: 10.47280/revfacagron(luz).v40.n4.01

Jorge Vilchez-Perozo, Nilca Albany, Fernando Pliego, Carolina Sánchez

{"title":"Maturation and germination of somatic embryos of guava var. Cuban Red Dwarf EEA-1840","authors":"Jorge Vilchez-Perozo, Nilca Albany, Fernando Pliego, Carolina Sánchez","doi":"10.47280/revfacagron(luz).v40.n4.01","DOIUrl":"https://doi.org/10.47280/revfacagron(luz).v40.n4.01","url":null,"abstract":"Somatic embryogenesis is an alternative for the accelerated propagation of promising guava (Psidium guajava L.) materials of agronomic interest. However, low maturation and germination rates of somatic embryos are some of the aspects that limit its application in breeding programs for different purposes. In this sense, the effect of three concentrations (0, 1 and 1.5 mg.L-1) of abscisic acid (ABA) on embryo maturation and two concentrations of sucrose (3 and 5 %) and Murashige and Skoog (MS) macronutrients (50 and 100 %) on the germination of somatic embryos of guava var. Cuban Red Dwarf EEA-1840 were studied. After six weeks of culture, ABA had a negative effect on somatic embryo maturation in culture media supplemented with 1 or 1.5 mg.L-1, whereas 3.95 to 5.49 times more mature embryos were observed in the absence of ABA. Germination of somatic embryos was significantly improved when the concentration of macronutrient in the culture medium was reduced independently of the sucrose concentration [MS 50 % + 3 % of sucrose (73,3 %) and MS 50 % + 5 % de sucrose (55,0 %)]. It is concluded that the simplification of the culture media with reduction of the macroelements MS and sucrose to standard concentration favors the germination of mature embryos of guava var. Cuban Red Dwarf EEA-1840.","PeriodicalId":54470,"journal":{"name":"Revista De La Facultad De Agronomia De La Universidad Del Zulia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136279436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phenotypic stability of forty advanced lines of rice at Babahoyo, Ecuador 厄瓜多尔巴巴霍约40个水稻高级品系的表型稳定性

4区农林科学

Revista De La Facultad De Agronomia De La Universidad Del Zulia Pub Date : 2023-09-20 DOI: 10.47280/revfacagron(luz).v40.n3.09

Cristina Maldonado, Walter Reyes, Luis Duicela, Fernando Cobos

{"title":"Phenotypic stability of forty advanced lines of rice at Babahoyo, Ecuador","authors":"Cristina Maldonado, Walter Reyes, Luis Duicela, Fernando Cobos","doi":"10.47280/revfacagron(luz).v40.n3.09","DOIUrl":"https://doi.org/10.47280/revfacagron(luz).v40.n3.09","url":null,"abstract":"The crosses between Oryza sativa L. and O. rufipogon Griff., create a high genetic diversity to develop rice varieties with high yield and phenotypic stability. In the present investigation, forty advanced lines of rice were evaluated in subsidiaries F5 (dry season) and F6 (rainy season), together with three commercial controls in the town of Babahoyo, Ecuador. A Randomized Complete Block Design (DBCA) was applied with three repetitions, recording morphoagronomic and productive characters. Statistical analyzes were applied and phenotypic stability was determined using the Eberhart and Russell, AMMI, Lin and Binns, PROMVAR models. The average morphoagronomic results were: days to flowering (72), vegetative cycle (98 days), plant height (111 cm), panicle sterility (6 %); the productive variables the results were: tillers per plant (32), panicles per plant (31), panicle length (27 cm), grains per panicle (168) and yield (8,100 kg.ha-1). The stable lines identified by the models: Eberhart and Russell were 1, 2, 10, 11, 13, 18, 25, 26, 30 and 37; AMMI identified lines 8 and 22; Lin and Binns to lines 2, 12, 18, 27, 37 and 40; and PROMOTE lines 2, 10, 13, 18, 25, 30, 38, 40 and 43; concluding that seven lines (2, 10, 13, 18, 25, 30 and 40) coincided with the applied models except AMMI. The average yield of the lines mentioned in the two seasons was 7,797 kg.ha-1, higher than the average of the commercial controls that obtained 6,809 kg.ha-1.","PeriodicalId":54470,"journal":{"name":"Revista De La Facultad De Agronomia De La Universidad Del Zulia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136264458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of cookies made with bean flour 用豆粉制作饼干的评价

4区农林科学

Revista De La Facultad De Agronomia De La Universidad Del Zulia Pub Date : 2023-09-09 DOI: 10.47280/revfacagron(luz).v40.n3.08

Blanca Sánchez-Toledano, Raquel Cruz, Lizbeth Salgado-Beltran, Jose Espinoza

引用次数: 0

Biokinetic mechnisms of anthocyanins in red fruits produced in the state of Michoacan, Mexico 墨西哥米却肯州生产的红色水果中花青素的生物动力学机制

IF 0.2 4区农林科学

Revista De La Facultad De Agronomia De La Universidad Del Zulia Pub Date : 2023-08-28 DOI: 10.47280/revfacagron(luz).v40.n3.07

J. Quiroz, Cristian Lizarazo, Jesús García, J. Torres, Israel García, Jose Hernández

{"title":"Biokinetic mechnisms of anthocyanins in red fruits produced in the state of Michoacan, Mexico","authors":"J. Quiroz, Cristian Lizarazo, Jesús García, J. Torres, Israel García, Jose Hernández","doi":"10.47280/revfacagron(luz).v40.n3.07","DOIUrl":"https://doi.org/10.47280/revfacagron(luz).v40.n3.07","url":null,"abstract":"Berry fruits are a rich source of phytonutrients, especially phenolic compounds such as flavonoids, which have antioxidant properties. Among these fruits, the most cultivated and consumed are those of the genus Fragaria (Strawberries) and Rubus (Raspberries, blackberries, dewberries), which have been widely studied for their beneficial effects on human and animal health. One of the most important bioactive compounds of these fruits are anthocyanins, which have shown potential benefits for health by their antimicrobial, anti-inflammatory and anticancer activity. Therefore, the study of anthocyanins is of great pharmaceutical and nutraceutical interest. The objective of this research is to analyze the biokinetic mechanisms of anthocyanins in Rubus adenotrichos and Fragaria x ananassa produced in the state of Michoacán, Mexico. For this purpose, research strategies that included the extraction and quantification of anthocyanins, as well as bioinformatic tools to understand their biosynthetic pathway in the mentioned fruits were used. The use of informatic platforms allowed to identify the regulatory genes and enzymes involved in the biosynthesis of anthocyanins in R. adenotrichos and F. x ananassa, finding that most are common, with some specific differences, and that there are only a few exceptions, such as the enzymes catechol-O-methyltransferase (OMT), UDP-glucosyltransferase (UGT) and beta-glucuronidase (GUSB), which only occur in Rubus adenotrichos and not in Fragaria x ananassa.","PeriodicalId":54470,"journal":{"name":"Revista De La Facultad De Agronomia De La Universidad Del Zulia","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90773854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluación de la sustentabilidad en sistemas productivos familiares y empresariales de la Cuenca del Salado 萨拉多盆地家庭和企业生产系统可持续性评估

IF 0.2 4区农林科学

Revista De La Facultad De Agronomia De La Universidad Del Zulia Pub Date : 2023-08-15 DOI: 10.24215/16699513e121

Ramon Cieza, S. Sarandón

{"title":"Evaluación de la sustentabilidad en sistemas productivos familiares y empresariales de la Cuenca del Salado","authors":"Ramon Cieza, S. Sarandón","doi":"10.24215/16699513e121","DOIUrl":"https://doi.org/10.24215/16699513e121","url":null,"abstract":"En la Cuenca del Salado existe un proceso de intensificación productiva en agricultura y ganadería basado en el alto uso de insumos. Este proceso es más acentuado en productores de tipo empresarial, aunque cuenta con influencia en los productores familiares, los cuales desarrollan tecnologías tradicionales en combinación con las modernas. El objetivo de este trabajo fue comparar la sustentabilidad en sistemas productivos de tipo familiar y empresarial, a partir de indicadores desarrollados para tal fin. Se analizaron seis unidades productivas como estudios de caso, cuatro de ellas correspondientes a productores de tipo familiar y dos a productores empresariales en los que se utilizaron los indicadores previamente construidos. Se concluyó que los sistemas productivos familiares son más sustentables que los empresariales, con diferencias sustanciales en la dimensión ecológica. Esto se asocia a diferentes estilos de manejo, prácticas de bajos insumos y bajo riesgo, basado en ganadería sobre pastizales naturales que desarrollan los productores familiares. En cambio, los productores de tipo empresarial realizan una aplicación más estandarizada del paquete tecnológico del modelo agroindustrial, similar a los utilizados en otras zonas de la región pampeana, con objetivos de alta productividad y consecuencias negativas en la sustentabilidad de los predios.","PeriodicalId":54470,"journal":{"name":"Revista De La Facultad De Agronomia De La Universidad Del Zulia","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44429561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","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 chitosan on growth and productive parameters in broccoli plants (Brassicaoleracea L. var. Calabrese) 壳聚糖对花椰菜生长及生产参数的影响

IF 0.2 4区农林科学

Revista De La Facultad De Agronomia De La Universidad Del Zulia Pub Date : 2023-07-26 DOI: 10.47280/revfacagron(luz).v40.n3.06

J. Reyes-Pérez, B. Murillo-Amador, Ramon Macias, Moisés Menacé, Eréndira Aragón, A. Palacios-Espinosa

{"title":"Effect of chitosan on growth and productive parameters in broccoli plants (Brassica\u0000oleracea L. var. Calabrese)","authors":"J. Reyes-Pérez, B. Murillo-Amador, Ramon Macias, Moisés Menacé, Eréndira Aragón, A. Palacios-Espinosa","doi":"10.47280/revfacagron(luz).v40.n3.06","DOIUrl":"https://doi.org/10.47280/revfacagron(luz).v40.n3.06","url":null,"abstract":"Biostimulants improve the absorption and assimilation of nutrients by plants, making them more tolerant to biotic or abiotic stress, improving their agronomic characteristics. Natural and biodegradable biostimulants such as chitosan have fungal and bactericidal activities and promote growth and crop yield, this is why, to evaluate the effect of chitosan application on growth and productive parameters of broccoli (Brassica oleracea L.), three concentrations of chitosan (T1 = 500 mg.L-1; T2 = 1000 mg.L-1; and T3 = 2000 mg.L-1) and a control treatment (T4 = distilled water), were applied by foliar spray when the true leaves unfolded, using a completely randomized design with 30 repetitions per treatment. The variables height of the plant, number of leaves per plant, diameter of the flowering stalk, diameter of the flowering head, length of the flowering stalk, total length of the flowering stalk, fresh biomass of the flowering head, of the root, and of the aerial part, total dry biomass and yield were measured. All the variables increased (P<0.05) as the chitosan dose increased, concluding that the application of chitosan to the broccoli crop is a viable alternative as a substitute for synthetic fertilizers.","PeriodicalId":54470,"journal":{"name":"Revista De La Facultad De Agronomia De La Universidad Del Zulia","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2023-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74412222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0