Agronomia Colombiana最新文献_第9页

Characterization of potassium solubilizing bacteria isolated from corn rhizoplane 玉米根平面溶钾菌的特性研究

Agronomia Colombiana Pub Date : 2021-09-01 DOI: 10.15446/agron.colomb.v39n3.98522

Reneé Pérez-Pérez, Ionel Hernández Forte, Yarixa Openda Zanabria Álvarez, Juan Carlos Salcedo Benítez, Daynet Sosa-del Castillo, S. Pérez-Martínez

{"title":"Characterization of potassium solubilizing bacteria isolated from corn rhizoplane","authors":"Reneé Pérez-Pérez, Ionel Hernández Forte, Yarixa Openda Zanabria Álvarez, Juan Carlos Salcedo Benítez, Daynet Sosa-del Castillo, S. Pérez-Martínez","doi":"10.15446/agron.colomb.v39n3.98522","DOIUrl":"https://doi.org/10.15446/agron.colomb.v39n3.98522","url":null,"abstract":"Potassium is one of the most important elements in plant growth and development. Most of the potassium reserves on Earth are in insoluble mineral form, which represents a limitation for the absorption of this nutrient by plants. Some microorganisms can solubilize the mineral forms of potassium. This study aimed to isolate and identify potassium solubilizing bacteria resident in corn rhizoplane. To do this, bacteria that formed a solubilization halo around the colony on solid Aleksandrov culture medium were selected. These bacteria were then characterized considering the appearance of the colonies and cell morphology and were identified by partial 16S rDNA sequencing. Their solubilizing and potassium-releasing capacity was determined under different conditions of temperature, pH, and salinity, using potassium feldspar and muscovite as insoluble sources of potassium. Eight strains identified within the genera Paenibacillus, Lysinibacillus, Arthrobacter, Bacillus, Pseudomonas, and Stenotrophomonas were obtained. The release of potassium from feldspar was favored at 28 and 30°C, pH 7.5 and a saline concentration of 4 g L-1, while in the presence of muscovite the best conditions were 30 and 37°C, pH 5.5 and 7.5, and 4 g L-1 of NaCl. The most efficient strains were Bacillus sp. INCA-FRc7 and Bacillus sp. INCA-FRc19x with yields of up to 2.095 mg L-1. These strains could become alternatives to the use of potassium fertilizers and contribute to the ecological sanitation of the agroecosystems.","PeriodicalId":38464,"journal":{"name":"Agronomia Colombiana","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41905927","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

Evaluation of the drying process and toxic metal contents in yerba mate cultivated in southern Brazil 巴西南部栽培马黛茶干燥过程及有毒金属含量评价

Agronomia Colombiana Pub Date : 2021-09-01 DOI: 10.15446/agron.colomb.v39n3.96535

Caroline Gieseler Dornelles, M. Poletto

引用次数: 0

Acaricidal activity and repellency of commercial essential oils on Tetranychus urticae in vitro and protected cultivation 商品精油对二斑叶螨的杀螨活性和驱避性研究

Agronomia Colombiana Pub Date : 2021-05-01 DOI: 10.15446/AGRON.COLOMB.V39N2.94805

J. Ataide, Francieli Destefani Deolindo, Filipe Garcia Holtz, Andressa Huver, Hugo Bolsoni Zago, L. Menini

{"title":"Acaricidal activity and repellency of commercial essential oils on Tetranychus urticae in vitro and protected cultivation","authors":"J. Ataide, Francieli Destefani Deolindo, Filipe Garcia Holtz, Andressa Huver, Hugo Bolsoni Zago, L. Menini","doi":"10.15446/AGRON.COLOMB.V39N2.94805","DOIUrl":"https://doi.org/10.15446/AGRON.COLOMB.V39N2.94805","url":null,"abstract":"This study analyzed the toxicity by residual contact and the repellency effect of the essential oils of Rosmarinus officinalis, Mentha piperita, Melaleuca alternifolia, and Commiphora myrrha and their mixtures on adult females of Tetranychus urticae in laboratory and protected cultivation. The essential oil of C. myrrha exhibited a LC50 of 0.55 ml L-1, and the mixtures R. officinalis + M. piperita + M. alternifolia + C. myrrha, C. myrrha + M. piperita, and C. myrrha + M. alternifolia showed 68%, 60%, and 36% mortality, respectively. The essential oils of C. myrrha and M. alternifolia showed 95 and 70% of repellency, respectively. Mixtures of C. myrrha + M. alternifolia, C. myrrha + M. piperita, and C. myrrha + R. officinalis provided repellency of 85, 74 and 73%, respectively. Toxicity by residual contact of the essential oil of C. myrrha in protected cultivation exhibited 93% mortality, while the acaricide fenpyroximate showed 80%. The constituents of essential oils were eucalyptol (49.66%), M. piperita menthol (48.53%), M. alternifolia terpinen-4-ol (48.93%), and C. myrrha benzyl benzoate (97.71%). The essential oil of C. myrrha and the mixtures R. officinalis + M. piperita + M. alternifolia + C. myrrha and C. myrrha + M. piperita showed significant mortality. However, further studies are needed to assess the cost/benefit ratio and the effects on non-target organisms.","PeriodicalId":38464,"journal":{"name":"Agronomia Colombiana","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44549337","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

Causes of fruit cracking in the era of climate change. A review 气候变化时代水果开裂的原因。回顾

Agronomia Colombiana Pub Date : 2021-05-01 DOI: 10.15446/AGRON.COLOMB.V39N2.97071

G. Fischer, H. E. Balaguera-López, J. Álvarez-Herrera

{"title":"Causes of fruit cracking in the era of climate change. A review","authors":"G. Fischer, H. E. Balaguera-López, J. Álvarez-Herrera","doi":"10.15446/AGRON.COLOMB.V39N2.97071","DOIUrl":"https://doi.org/10.15446/AGRON.COLOMB.V39N2.97071","url":null,"abstract":"The objective of this review was to report on advances in environmental, cultural, and physiological aspects of fleshy fruit cracking to reduce or avoid this disorder, which affects many fruit species. Cracking is a physiological disorder that limits the production and quality of fleshy fruits because it affects the exocarp and mesocarp, especially with climate change and variability. Fruit cracking is generated by external factors (agronomic and environmental) and internal factors, several of which require exhaustive study. The incidence of cracking varies widely according to climatic characteristics during fruit development, different fruit species and varieties, growth sites, and crop management. This physiological disorder is aggravated by increases in rain intensity, especially after a dry season or in areas with increased temperatures. Knowledge on causes of cracking has generated management strategies that involve genetic improvement, ecophysiological conditions, agronomic practices such as pruning, irrigation, and fertilization (mainly with Ca, Mg, B, and K), applications of plant growth regulators, and use of plastic covers, etc. For several fruit trees, these strategies are effective, but in species such as the cape gooseberry, cracking remains without a full explanation or effective management.","PeriodicalId":38464,"journal":{"name":"Agronomia Colombiana","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48992735","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: 5

Farm management succession by heritage. A Central Mexico case study 农场管理的传承。墨西哥中部案例研究

Agronomia Colombiana Pub Date : 2021-05-01 DOI: 10.15446/AGRON.COLOMB.V39N2.94999

Arely Romero-Padilla, Vinicio Horacio Santoyo-Cortés, S. R. Márquez-Berber, A. V. Ayala-Garay, J. R. Altamirano-Cárdenas

{"title":"Farm management succession by heritage. A Central Mexico case study","authors":"Arely Romero-Padilla, Vinicio Horacio Santoyo-Cortés, S. R. Márquez-Berber, A. V. Ayala-Garay, J. R. Altamirano-Cárdenas","doi":"10.15446/AGRON.COLOMB.V39N2.94999","DOIUrl":"https://doi.org/10.15446/AGRON.COLOMB.V39N2.94999","url":null,"abstract":"Farm succession involves the interaction of social, economic, and emotional factors. The process also includes the decisions of farmers and their families who consider the farm as patrimony rather than a productive asset. This article analyses the processes of succession in farms of central Mexico to understand the different stages they comprise and the problems that these processes encounter. We conducted 12 in-depth interviews with producers who went through a recent transfer process. Succession processes and their associated factors were analyzed and discussed using the multiple case study methodology; subsequently, the stages that comprise each of these processes were defined. Results show that succession is commonly managed without making decisions or taking actions that prevent future problems, and individual interests of the potential heirs prevail. Although each transfer process is different, two basic types were identified: the spouse or the descendants assume the administration of the patrimony. However, in the analyzed cases, we found that, in general, there is no planning for succession, so the successors lack training in agricultural activities. In general, succession processes are complex and generate conflicts, and their trajectory depends on family relationships and the socioeconomic conditions of the farm.","PeriodicalId":38464,"journal":{"name":"Agronomia Colombiana","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42959883","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

Relationships between mineral nutrients in banana (Musa AAA Simmonds cv. Williams) bunches fertilized with nitrogen in two production cycles 两个生产周期内施氮香蕉（Musa AAA Simmonds cv.Williams）束中矿物质营养成分的关系

Agronomia Colombiana Pub Date : 2021-05-01 DOI: 10.15446/AGRON.COLOMB.V39N2.89886

Sebastián David García-Guzmán, Sebastián Camilo Morales Romero, Jaime Torres Bazurto, Jaiver Danilo Sánchez

{"title":"Relationships between mineral nutrients in banana (Musa AAA Simmonds cv. Williams) bunches fertilized with nitrogen in two production cycles","authors":"Sebastián David García-Guzmán, Sebastián Camilo Morales Romero, Jaime Torres Bazurto, Jaiver Danilo Sánchez","doi":"10.15446/AGRON.COLOMB.V39N2.89886","DOIUrl":"https://doi.org/10.15446/AGRON.COLOMB.V39N2.89886","url":null,"abstract":"The production of bananas (Musa AAA Simmonds cv. Williams) for export in Uraba, Colombia is an important source of income for the region, reflected in the offer of approximately 40,000 jobs. Production requires research into various subjects, with fertilization being a priority. In this study, the effect of N doses on the nutrient relationships existing in a banana bunch during two cycles was evaluated. A sixth-generation plantation was used and evaluated during the fruit filling and harvesting stages. A multivariate approach was used for the analysis of variance of the design in repeated measures, with two factors between subjects (fertilization and repetitions), and one intra-subject associated with the cycle. The models were adjusted with the phenological stages. Synergy was found between Mg:Ca+N, Zn:B, K:Cu, K:P, and Ca:Cu, with K:P and K:Cu ratios being the only ones that showed a directly proportional behavior with the production variables. Optimal values of the interaction K:Cu+K:P (35.11-39.05) led to a greater accumulation of dry mass in the bunch (4.24 kg) in the treatments of 321.8 and 483 kg N ha-1 for the evaluated stages.","PeriodicalId":38464,"journal":{"name":"Agronomia Colombiana","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48033304","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

Extension of umbu (Spondias tuberosa Arruda) postharvest life using a cassava starch-based coating 使用木薯淀粉为基础的涂层延长海绵体(Spondias tuberosa Arruda)的采后寿命

Agronomia Colombiana Pub Date : 2021-05-01 DOI: 10.15446/agron.colomb.v39n2.94028

E. F. Dos Santos, Ednângelo Duarte Pereira, Débora Souza Mendes, Eliene Almeida Paraízo, Anunciene Barbosa Duarte, H. Pessoa, Josiane Cantuária Figueiredo

{"title":"Extension of umbu (Spondias tuberosa Arruda) postharvest life using a cassava starch-based coating","authors":"E. F. Dos Santos, Ednângelo Duarte Pereira, Débora Souza Mendes, Eliene Almeida Paraízo, Anunciene Barbosa Duarte, H. Pessoa, Josiane Cantuária Figueiredo","doi":"10.15446/agron.colomb.v39n2.94028","DOIUrl":"https://doi.org/10.15446/agron.colomb.v39n2.94028","url":null,"abstract":"The umbu (Spondias tuberosa Arruda) is a fruit tree adapted to the Brazilian semiarid region and constitutes an important source of income for many families in Brazil. Due to this, sustainable methods of fruit postharvest conservation should be studied. The objective of this study was to analyze the influence of cassava starch-based biofilm coatings for the postharvest conservation of umbu. The experimental design was completely randomized in a 2x5 factorial arrangement with six replicates. The two treatments, 1% cassava starch coating and no coating, were evaluated during five periods (0, 3, 6, 9, and 12 d of storage). Fresh weight loss (WL), fruit firmness (FIR), pH, total soluble solids (TSS), total titratable acidity (TA), TSS/TA ratio, external color: luminosity (L*), hue angle (H*), and chromaticity (C*) were measured. The coating of fruits with cassava starch-based biofilm improved WL, pH, and TSS. The variables TA, TSS/TA ratio, and L* were not influenced by the use or absence of the cassava starch biofilm coating. The use of 1% cassava starch to coat the fruits ensures better postharvest quality of the umbu and extends its posthavest life.","PeriodicalId":38464,"journal":{"name":"Agronomia Colombiana","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41561569","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

Sampling methods of symphylids in pineapple (Ananas comosus L.) crops in Santander, Colombia 哥伦比亚桑坦德市菠萝（Ananas comosus L.）作物中的类化合物取样方法

Agronomia Colombiana Pub Date : 2021-05-01 DOI: 10.15446/AGRON.COLOMB.V39N2.93587

Jose M. Montes-Rodríguez, Juan Felipe Ossa-Yepes

引用次数: 0

Agronomic and physiological characteristics of soybean cultivars and their seeds according to plant population 大豆品种及其种子的农艺和生理特性

Agronomia Colombiana Pub Date : 2021-05-01 DOI: 10.15446/AGRON.COLOMB.V39N2.93019

Edgar Estevam França, G. Silva, M. E. Araujo, Itamar Rosa Teixeira, P. C. Corrêa, A. Silva

{"title":"Agronomic and physiological characteristics of soybean cultivars and their seeds according to plant population","authors":"Edgar Estevam França, G. Silva, M. E. Araujo, Itamar Rosa Teixeira, P. C. Corrêa, A. Silva","doi":"10.15446/AGRON.COLOMB.V39N2.93019","DOIUrl":"https://doi.org/10.15446/AGRON.COLOMB.V39N2.93019","url":null,"abstract":"Soybean (Glycine max) yield can be influenced by the choice of genetic material along with the use of an adequate plant population and selection of high-quality seeds. This study aimed to evaluate agronomic and physiological characteristics of soybean cultivars and their seeds, according to different plant populations. For this purpose, an experiment was conducted during the 2017/2018 harvest, under field conditions, in a randomized block design in a 3 x 4 factorial arrangement with four replicates. The treatments consisted of three soybean cultivars, TMG2181 IPRO, M 7739 IPRO, and BMX Power IPRO, at four population densities: 180,000; 220,000; 280,000 and 320,000 plants ha-1. The agronomic characteristics of the plants (plant height, stem diameter, number of branches, number of pods per plant, number of seeds per plant, number of seeds per pod, weight of a 100 seeds and seed yield) and physiological quality (germination, first count of germination, seedling length, dry mass of the shoot and root and accelerated aging test) of these seeds were evaluated. The experiment showed that the agronomic characteristics of soybean cultivars and their seeds varied according to the genotypes, and that these phenotypic expressions can be altered according to the plant population. The indeterminate cultivar BMX Power IPRO obtained higher seed yield compared to the semi-determinate and determinate cultivars M 7739 IPRO and TMG2181 IPRO, mainly due to their field conformation and size. The indeterminate cultivar BMX Power IPRO showed higher average germination and seed hardiness and produced normal seedlings with good initial growth rate and dry weight. The yield and quality of soybean seeds were not affected by plant population.","PeriodicalId":38464,"journal":{"name":"Agronomia Colombiana","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43466960","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

Interaction of triacontanol with other plant growth regulators on morphology and yield of field pea (Pisum sativum L.) 三康醇与其他植物生长调节剂对大田豌豆形态和产量的相互作用

Agronomia Colombiana Pub Date : 2021-05-01 DOI: 10.15446/AGRON.COLOMB.V39N2.94096

Héctor Cantaro-Segura, A. Huaringa-Joaquín

{"title":"Interaction of triacontanol with other plant growth regulators on morphology and yield of field pea (Pisum sativum L.)","authors":"Héctor Cantaro-Segura, A. Huaringa-Joaquín","doi":"10.15446/AGRON.COLOMB.V39N2.94096","DOIUrl":"https://doi.org/10.15446/AGRON.COLOMB.V39N2.94096","url":null,"abstract":"The effect of a recent plant growth regulator, triacontanol (TRIA), on plant growth and yield of Pisum sativum L. was investigated. The experiment was carried out under field conditions at the Instituto Nacional de Innovación Agraria (INIA), La Molina, Lima, Peru, using a completely randomized block design with eight treatments and three replicates. Treatments consisted in the foliar application of TRIA alone and in all possible combinations with three plant growth regulators based on auxins (AUX), gibberellins (GA), and cytokinins (CK), on pea plants cv. Rondo. The highest green pod yields were obtained with the application of TRIA+AUX+GA+CK, and TRIA+AUX+CK. The TRIA+AUX increased the values of the yield variables while TRIA+GA increased the values of the morphological variables. TRIA+CK showed a stimulating effect on morphological variables and number of grains per pod, while TRIA+AUX+CK acted synergistically on yield variables since their combined effect overweighed the effect of each growth regulator separately. Treatments with TRIA exceeded the control treatment in yield variables, indicating its great potential to be used in sustainable agriculture to guarantee food security in the future.","PeriodicalId":38464,"journal":{"name":"Agronomia Colombiana","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46815347","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: 3