Revista de Ciencias Agrícolas最新文献_第4页

Cattle movement as a function of some biotic and abiotic factors in a tropical pasture 热带牧场中某些生物和非生物因素对牛群运动的影响

Revista de Ciencias Agrícolas Pub Date : 2022-06-16 DOI: 10.22267/rcia.223902.184

Anderson Leonardo Castilla, J. Mora-Delgado, M. Rodríguez-Márquez, Jaime Lopez

{"title":"Cattle movement as a function of some biotic and abiotic factors in a tropical pasture","authors":"Anderson Leonardo Castilla, J. Mora-Delgado, M. Rodríguez-Márquez, Jaime Lopez","doi":"10.22267/rcia.223902.184","DOIUrl":"https://doi.org/10.22267/rcia.223902.184","url":null,"abstract":"The research question is how do some biotic and abiotic variables, under a silvopastoral system exert influence on the animal movement? These studies have been carried out through different approaches and have included analyses from empirical to statistical. The aim of this study was to relate cattle grazing sites with some biotic and abiotic factors under a silvopastoral system. The fieldwork was carried out in a paddock of the farm La Reforma located in the upper part of the Magdalena River basin (Tolima, Colombia). Through global positioning devices (GPS), movement, grazing route, and resting data that cattle perform in these habitats during daytime hours were obtained. Six cows (460 kg live weight, not pregnant) were monitored during two periods of the year at one-minute time intervals. Data were processed in a geographic information systems (GIS) environment, and mechanisms and algorithms were used to establish an association of moving animals with some biotic (pasture productivity and cover, trees, and floristic composition) and abiotic factors (climatological season, access to drinking and salt troughs). The results suggest an association between animal movement concerning the different attractants for which the drinking and salt troughs in the paddocks were relevant. In conclusion, the analysis of animal behavior at the landscape level is useful for decision-making in the design of livestock landscapes.","PeriodicalId":211714,"journal":{"name":"Revista de Ciencias Agrícolas","volume":"198 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121615165","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

Efficiency of inoculation methods for genotypes selection in corn ear rot disease studies 玉米穗腐病研究中接种方法基因型选择的有效性

Revista de Ciencias Agrícolas Pub Date : 2022-06-01 DOI: 10.22267/rcia.223902.191

Sabrina Helena Araujo, O. Júnior, Luis Oswaldo Viteri, Raimundo Wagner Aguiar, E. E. Oliveira, G. R. Santos

{"title":"Efficiency of inoculation methods for genotypes selection in corn ear rot disease studies","authors":"Sabrina Helena Araujo, O. Júnior, Luis Oswaldo Viteri, Raimundo Wagner Aguiar, E. E. Oliveira, G. R. Santos","doi":"10.22267/rcia.223902.191","DOIUrl":"https://doi.org/10.22267/rcia.223902.191","url":null,"abstract":"The identification of resistance of plants to pathogens is crucial for the development of hybrids by breeding programs. To achieve that, it is of great relevance to establish effective inoculation methods for characterizing genotypes with adequate plant resistance levels. Several inoculation methods have been investigated in the search for resistance to corn ear rot disease. However, studies evaluating different corn genotypes cultivated under Neotropical field conditions remain unexplored. Here, we compared three inoculation methods (i.e., aspersion, injectable, and natural) of Fusarium verticillioides in corn ears, and evaluated disease severity and grain yield of 10 corn genotypes. The experiments were conducted in two consecutive experimental corn crop (i.e., 2015 and 2016) seasons located in cities with different environmental temperatures and belonging to different Brazilian states (i.e., Gurupi – Tocantins State, Itumbiara – Goiás State, Planaltina – Brazilian Federal District, and Toledo – Paraná State). We evaluated the mass of 1000 grains and the severity of the disease. Regarding the disease severity, our results showed that the artificial inoculation was more efficient in the regions of Planaltina and Toledo, not affecting grains’ mass in these localities. The severity of disease on the conditions of Toledo was similar for the ten genotypes. However, it was possible to identify two contrasting genotypes since P4285H (low severity) and 32R48YH (medium severity) exhibited significantly more disease symptoms in all other regions. Although the differences regarding the efficiency of inoculation methods are more evident in regions with milder temperatures, the results showed that the characterization of genotypes susceptible to the pathogen is more efficient in regions with higher temperatures.","PeriodicalId":211714,"journal":{"name":"Revista de Ciencias Agrícolas","volume":"73 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130784104","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: 2

Determinants of nitrogen use efficiency in coffee crops. A review 咖啡作物氮利用效率的决定因素。回顾

Revista de Ciencias Agrícolas Pub Date : 2022-06-01 DOI: 10.22267/rcia.223902.183

Siavosh Sadeghian-Khalajabadi, José-Ricardo Acuña-Zornosa, L. Salazar-Gutiérrez, Juan-Camilo Rey-Sandoval

{"title":"Determinants of nitrogen use efficiency in coffee crops. A review","authors":"Siavosh Sadeghian-Khalajabadi, José-Ricardo Acuña-Zornosa, L. Salazar-Gutiérrez, Juan-Camilo Rey-Sandoval","doi":"10.22267/rcia.223902.183","DOIUrl":"https://doi.org/10.22267/rcia.223902.183","url":null,"abstract":"World production of coffee (Coffea spp.) has increased in recent decades due to its growing demand. Nitrogen (N) is one of the most required nutrients by coffee crops and in many cases, the most yield-limiting; nevertheless, a high percentage of supplied N is lost, generating pollution, greenhouse gases, and economic losses. Given this scenario, it is a priority to adopt practices that increase nitrogen use efficiency related to the capacity of plants to absorb and use N to produce biomass. This article provides context about NUE and determining factors in coffee: plant, soil, climate, and management. On the plant side, despite advances in genetics and the results of genotype evaluation, it may be a decade or more before improved coffee varieties with high EUN become available or used in world coffee farming. Both the physical, chemical, and biological properties of the soil and the elements of the climate, mainly temperature, precipitation, and solar radiation, have an influence on coffee growth and many of the processes that intervene in the N cycle and NUE; however, some components of these two factors are not fully controllable. Management of the factors that determine NUE should focus on reducing N losses in the system, increasing its uptake and utilization by plants, and maintaining or increasing productivity.","PeriodicalId":211714,"journal":{"name":"Revista de Ciencias Agrícolas","volume":"207 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116510424","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

Molecular characterization of Fusarium spp. associated vascular wilt in passion fruit (Passiflora ligularis JUSS) 西番莲(Passiflora ligularis JUSS)枯萎病的分子特征

Revista de Ciencias Agrícolas Pub Date : 2022-06-01 DOI: 10.22267/rcia.223902.180

C. Salazar-González, Omar Yela-Caicedo, Bladimir Gomez-Espinoza

{"title":"Molecular characterization of Fusarium spp. associated vascular wilt in passion fruit (Passiflora ligularis JUSS)","authors":"C. Salazar-González, Omar Yela-Caicedo, Bladimir Gomez-Espinoza","doi":"10.22267/rcia.223902.180","DOIUrl":"https://doi.org/10.22267/rcia.223902.180","url":null,"abstract":"In Colombia, vascular rotting of passion fruit (P. ligularis) caused by the fungus Fusarium is considered the most important pathological problem in the cultivation of this fruit. Plants affected by the pathogen wilt and die, causing considerable yield losses and increased production costs. The objective of this work was to determine the genetic variability of the Fusarium species associated with this disease. For this, 50 samples were collected from producing farms in three municipalities of the department of Nariño. A total of 35 isolates were characterized morphologically and molecularly. The morphological identification was carried out using taxonomic keys. Molecular characterization was performed by PCR with primers ITS1 – ITS4 and TEF1α. The PCR products were sent to Macrogen (Korea) for sequencing. Sequencing results indicated that Fusarium oxysporum f.sp. passiflorae is associated as a causal agent of the disease. In addition, the presence of Ilyonectria robusta was determined, which, has not been reported before in passion fruit plants. The phylogenetic analysis allowed determine that there was little variability among the isolates evaluated; no grouping was observed associated to the geographical origin of the samples. The morphological characters corroborated the species information obtained from the molecular analysis.","PeriodicalId":211714,"journal":{"name":"Revista de Ciencias Agrícolas","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121032911","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

Path analysis between fruit biometric traits of Caesalpinia ebano H. Karst 喀斯特白腹果生物特征的通径分析

Revista de Ciencias Agrícolas Pub Date : 2022-06-01 DOI: 10.22267/rcia.223902.187

Ruben Darío Blanco-Fuentes, Leider José Castro-Torres, M. Espitia-Camacho, Hérmes Araméndiz-Tatis, C. Cardona-Ayala

引用次数: 0

Competitive ability of sweet sorghum (Sorghum bicolor (L.) Moench) cultivars against hairy beggarticks (Bidens pilosa L.) 甜高粱(sorghum bicolor, L.)的竞争能力抗毛乞丐(Bidens pilosa L.)品种

Revista de Ciencias Agrícolas Pub Date : 2022-05-26 DOI: 10.22267/rcia.223901.174

L. Galon, C. O. Santin, A. L. Radünz, A. Andres, G. Concenço, A. F. da Silva, F. Nonemacher, G. F. Perin, I. Aspiazú

{"title":"Competitive ability of sweet sorghum (Sorghum bicolor (L.) Moench) cultivars against hairy beggarticks (Bidens pilosa L.)","authors":"L. Galon, C. O. Santin, A. L. Radünz, A. Andres, G. Concenço, A. F. da Silva, F. Nonemacher, G. F. Perin, I. Aspiazú","doi":"10.22267/rcia.223901.174","DOIUrl":"https://doi.org/10.22267/rcia.223901.174","url":null,"abstract":"Among the weeds that interfere with the growth and development of sweet sorghum, beggar ticks stands out, because it has a high competitive capacity for the available resources. This study aims to compare the competitive ability of sweet sorghum (Sorghum bicolor (L.) Moench) against hairy beggarticks (Bidens pilosa L.), as a function of cultivar and plant proportion. Experiments were conducted in a greenhouse in a completely randomized design with four replications and six treatments. Treatments were arranged in replacement series in the proportions of 100:0, 75:25, 50:50, 25:75, and 0:100% (sorghum:weed) equivalent to 20:0, 15:5, 10:10, 5:15 and 0:20 plants per pot with 8 dm3 capacity of sweet sorghum (cultivars ‘BRS 506’, ‘BRS 509’ or ‘BRS 511’) against hairy beggarticks. Fifty days after emergence, plant leaf area (LA), aboveground dry mass (DM), photosynthesis (A), and transpiration rates (E) were measured. Competitive ability was analyzed by using the graphical analysis method and building diagrams based on total and relative productivity. Competitiveness, clustering coefficient, and aggressiveness were also determined. Sorghum cultivars, in general, showed losses independently of the proportion of hairy beggarticks. Statistical analysis showed small differences in competitive ability among sorghum cultivars; ‘BRS 509’ was also demonstrated to be slightly more competitive than ‘BRS 506’ and ‘BRS 511’ against hairy beggarticks. This, however, is unlikely to provide a competitive advantage for ‘BRS 509’ in production fields, and hairy beggarticks should be efficiently controlled early in the crop cycle to avoid productivity losses, independently of the sorghum cultivar.","PeriodicalId":211714,"journal":{"name":"Revista de Ciencias Agrícolas","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130761067","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

Matriconditioning effect on the physiological performance of chia seeds (Salvia hispanica L.) 基质调理对鼠尾草种子生理性能的影响

Revista de Ciencias Agrícolas Pub Date : 2022-03-25 DOI: 10.22267/rcia.223901.172

Adriane Witkovski, Alberto Ricardo Stefeni, Jean Carlo Possenti, Adriana Bezerra De Lima, C. Deuner, Vitor Rampazzo-Favoretto

{"title":"Matriconditioning effect on the physiological performance of chia seeds (Salvia hispanica L.)","authors":"Adriane Witkovski, Alberto Ricardo Stefeni, Jean Carlo Possenti, Adriana Bezerra De Lima, C. Deuner, Vitor Rampazzo-Favoretto","doi":"10.22267/rcia.223901.172","DOIUrl":"https://doi.org/10.22267/rcia.223901.172","url":null,"abstract":"Solid matrix priming (matriconditioning) permits slow seed hydration, and germination and emergence period reduction. In general, seeds need to be soaked to start their germination process. The objective of this study was to evaluate the effect of the matriconditioning under the imbibition curve and the physiological performance of two lots of chia seeds with different qualities. The study was performed with chia seeds harvested by small-scale farmers. To estimate the imbibition curve, seeds from both lots were started in the imbibition process on a stainless-steel screen placed in plastic boxes, containing 55.5 grams of sterilized vermiculite and moisturized with distilled water at 100% of their retention capability. The imbibition curve weights were made 0, 2, 4, 8, 16, and 32 hours after the process had started. Simultaneously, in each evaluation period, seeds were submitted to the following tests: germination, first count of germination, plantlet shoot, root and total lengths, emergence velocity index and average time, and accumulated emergence. A completely randomized experimental design was used. It was possible to conclude that the beginning of phase II of germination in matriconditioned seeds varies in function of the chia seeds' lot quality. The matriconditioning contributes to the physiological performance, increasing and accelerating plantlets' emergence.","PeriodicalId":211714,"journal":{"name":"Revista de Ciencias Agrícolas","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128744460","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

Sugar and organic acids content in feijoa (Acca sellowiana) fruits, grown at two altitudes 在两个海拔高度生长的黄柳果中糖和有机酸的含量

Revista de Ciencias Agrícolas Pub Date : 2022-03-25 DOI: 10.22267/rcia.223901.173

A. Parra-Coronado, G. Fischer, H. E. Balaguera-López, L. Melgarejo

{"title":"Sugar and organic acids content in feijoa (Acca sellowiana) fruits, grown at two altitudes","authors":"A. Parra-Coronado, G. Fischer, H. E. Balaguera-López, L. Melgarejo","doi":"10.22267/rcia.223901.173","DOIUrl":"https://doi.org/10.22267/rcia.223901.173","url":null,"abstract":"The impact of altitude on the different sugars and acids of the feijoa fruit is unknown. For that reason, the objective of this study was to evaluate the altitudinal effect on the content of organic acids (citric and malic) and sugars (glucose, fructose, and sucrose) during the development of feijoa fruits. The study took place in the towns of Tenjo (2,580 m asl with 12.3°C, 76.4% RH, 190mm precipitation) and San Francisco de Sales (1,800 m asl, with 18.5°C; 86.1% RH, 573 mm precipitation), located in Cundinamarca (Colombia). In the first locality (Tenjo), the fruits developed with 1,979 growth degree days (GDD) (180 days after anthesis (daa), while in the second locality (San Francisco), 2,728 GDD were required (155 daa). For organic acids, the predominant acid was citric. During the fruit development, the contents of these acids presented low values with a later irregular behavior, finally showing 14.21mg g-1 FW (fresh weight) at harvest for citric acid at San Francisco and 7.95mg g-1 FW at Tenjo. For malic acid, 9.14mg g-1 FW was recorded in San Francisco, and 6.88mg g-1 FW in Tenjo, with significant differences for citric acid between altitudes. The monosaccharides fructose and glucose increased during fruit development. However, the disaccharide sucrose showed a significant much higher content at 2,580 m asl (4.27mg g-1 FW) than at 1,800 m asl (1.03mg g-1 FW), for which it is concluded that the higher temperature in the low locality originated greater respiration and loss of sucrose in the fruit.","PeriodicalId":211714,"journal":{"name":"Revista de Ciencias Agrícolas","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128411636","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

Geostatistical methods applied to soil fertility zoning 地统计学方法在土壤肥力区划中的应用

Revista de Ciencias Agrícolas Pub Date : 2022-03-04 DOI: 10.22267/rcia.223901.171

Cesar Albornoz-Bucheli, C. Benavides-Cardona, Diego Muñoz-Guerrero

引用次数: 0

Reduction of interrow spacing in cassava (Manihot esculenta Crantz) production 木薯(Manihot esculenta Crantz)生产中减少行距

Revista de Ciencias Agrícolas Pub Date : 2022-02-15 DOI: 10.22267/rcia.223901.170

A. D. Santiago, S. O. Procópio, C. Ferreira, G.B.P. Braz

{"title":"Reduction of interrow spacing in cassava (Manihot esculenta Crantz) production","authors":"A. D. Santiago, S. O. Procópio, C. Ferreira, G.B.P. Braz","doi":"10.22267/rcia.223901.170","DOIUrl":"https://doi.org/10.22267/rcia.223901.170","url":null,"abstract":"The interrow spacing commonly used in cassava cultivation in Brazil, especially in the Agreste region of Alagoas, ranges from 100 to 120cm. However, the reduction in row spacing can provide agronomic and environmental benefits in cassava cropping systems. Thus, this work aimed to evaluate the performance of two cassava varieties cultivated with reduced interrow spacing. Two experiments were conducted in the field, one in 2015/16 and another in 2017/18. A Split Plot design with four replications was used in both experiments. Four interrow spacing were evaluated in the main plot: 60, 80, 100 and 120cm, with plants spaced 60cm apart within rows, giving populations of 27,778, 20,833, 16,667 and 13,889 plants per hectare, respectively. In the subplots, two cassava varieties were evaluated: Caravela and Pretinha. An increase in interrow spacing promoted a linear reduction in the stem green mass of cassava. Plant height, leaf green mass, main stem diameter, root yield, tuberous root length, tuberous root diameter, flour percentage, flour yield, and starch content were not influenced by changes in interrow spacing. The Pretinha variety was superior to Caravela in the following evaluated traits: stem green mass, the diameter of tuberous roots, root yield, plant height, and flour yield. The results indicate the possibility of altering the interrow spacing in cassava to assist in the cultural management, without impacting crop yield. \u0000 ","PeriodicalId":211714,"journal":{"name":"Revista de Ciencias Agrícolas","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124432425","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