Ciencia Rural最新文献_第4页

Population suppression of phylloxera gallicolae and radicicolae forms on grapevines with the use of synthetic insecticides 合成杀虫剂对葡萄根瘤蚜和高鸡根瘤蚜种群的抑制作用

IF 0.8 4区农林科学

Ciencia Rural Pub Date : 2023-04-28 DOI: 10.1590/0103-8478cr20220112

S. Andzeiewski, D. C. Oliveira, D. Bernardi, M. Botton

{"title":"Population suppression of phylloxera gallicolae and radicicolae forms on grapevines with the use of synthetic insecticides","authors":"S. Andzeiewski, D. C. Oliveira, D. Bernardi, M. Botton","doi":"10.1590/0103-8478cr20220112","DOIUrl":"https://doi.org/10.1590/0103-8478cr20220112","url":null,"abstract":"ABSTRACT: The grapevine phylloxera Daktulosphaira vitifoliae (Fitch, 1856) is the main insect pest of viticulture globally. Infestations can occur in the aerial part of the plant (gallicolae form) and roots (radicicolae form). In this study, the effect of insecticides on the populations suppression of the gall and root forms of phylloxera one vine was evaluated. For the gallicolous form, the thiamethoxam (Actara 250 WG®, 40g c.p./100L-1), flupyradifurone (Sivanto® Prime 200 SL, 75mL c.p./100L-1), and sulfoxaflor (Closer® SC, 40mL c.p./100L-1) were evaluated in the field, under natural infestation, using rootstock plants ‘Paulsen 1103’ (Vitis berlandieri x V. rupestris). For the root stage, an experiment was carried out in a greenhouse using rooted seedlings of ‘Cabernet Sauvignon’ (Vitis vinifera) grown in pots artificially infested with 200 phylloxera eggs per plant. After 80 days of infestation, the thiamethoxam (0.2g p.c./plant), flupyradifurone (0.8mL p.c./plant), sulfoxaflor (0.3mL/plant) and imidacloprid (Proved 200 SC, 0.7 mL/plant) were applied via drench. For the gallicolae form, an application of the flupyradifurone provided a gall reduction of 90% at 28 days after the first application (DAFA). While for thiamethoxam, 3 applications were needed at weekly intervals to maintain the same level of control. For sulfoxaflor, a second application at 14 DAFA was necessary to provide a level of control above 90%. For the root stage, the insecticides sulfoxaflor and imidacloprid showed the best results, with 96 and 89% of control over nymphs and adults, respectively. The insecticides flupiradifurone and sulfoxaflor are suitable for the chemical control of phylloxera in the vine.","PeriodicalId":10308,"journal":{"name":"Ciencia Rural","volume":"1 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67636288","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

Nitrogen nutrition index and morphogenesis in Alexandergrass of the Central Depression of Rio Grande do Sul 南里约热内卢大平原中部凹陷亚历山大草氮素营养指数与形态发生

IF 0.8 4区农林科学

Ciencia Rural Pub Date : 2023-04-21 DOI: 10.1590/0103-8478cr20210783

P. R. Salvador, M. G. Rocha, J. Machado, T. L. Bergoli, J. M. Machado, D. D. Tiecher, Juliana Brendler Hoerbe, L. Pötter

{"title":"Nitrogen nutrition index and morphogenesis in Alexandergrass of the Central Depression of Rio Grande do Sul","authors":"P. R. Salvador, M. G. Rocha, J. Machado, T. L. Bergoli, J. M. Machado, D. D. Tiecher, Juliana Brendler Hoerbe, L. Pötter","doi":"10.1590/0103-8478cr20210783","DOIUrl":"https://doi.org/10.1590/0103-8478cr20210783","url":null,"abstract":"ABSTRACT: This study assessed the nitrogen nutrition index, morphogenic characteristics and tiller structure of Alexandergrass (Urochloaplantaginea (LINK) Hitch) pasture submitted to different nitrogen (N) levels (zero, 150 or 300 kg ha-1 of N). The experimental design was entirely randomized with repeated measures arrangement. The experimental animals were Angus heifers under rotational stocking grazing method. The number of animals was variable to keep 30±5 cm post-grazing sward height. Nitrogen nutrition index increased linearly according N levels (Ŷ = 59.8 + 0.1216N; P < 0.0001; r²=0.53). The leaf appearance rate adjusted to a positive linear regression model according the thermal sum (TS) with zero of N (Ŷ0N = 0.0077 + 0.0000087TS; P = 0.0308; r² = 0.72) and 150 kg ha-1 of N (Ŷ150N = 0.0020 + 0.000021 TS; P = 0.0022; r² = 0.92). The use of 300 kg ha-1 of N did not alter the leaf appearance rate (0.0124 leaf degree-days-1). The use of up to 300 kg ha-1 of N increases the Alexandergrass nitrogen content. The leaf appearance rate in Alexandergrass is modified using N while the morphogenic characteristics leaf expansion, stem expansion, phyllochron, leaf lifespan, leaf elongation duration and tiller structure are not altered by N utilization.","PeriodicalId":10308,"journal":{"name":"Ciencia Rural","volume":"11 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67634465","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

Soil insects associated with sugarcane crop in Mato Grosso do Sul, Brazil 巴西南马托格罗索州与甘蔗作物有关的土壤昆虫

IF 0.8 4区农林科学

Ciencia Rural Pub Date : 2023-04-17 DOI: 10.1590/0103-8478cr20220333

C. J. Ávila, Gleiciele Caparróz, V. Santos, I. F. D. Silva

{"title":"Soil insects associated with sugarcane crop in Mato Grosso do Sul, Brazil","authors":"C. J. Ávila, Gleiciele Caparróz, V. Santos, I. F. D. Silva","doi":"10.1590/0103-8478cr20220333","DOIUrl":"https://doi.org/10.1590/0103-8478cr20220333","url":null,"abstract":"ABSTRACT: Pest insects are one of the major factors affecting the productivity of sugarcane, and especially those associated with the soil, which damage the crop if not controlled. There is little information on the insect associated with the soil in the sugarcane crop in the state of Mato Grosso do Sul, Brazil. This study evaluated the occurrence, abundance and population variation of soil-associated insects in sugarcane crops in four counties in the state of Mato Grosso do Sul during a period from September 2009 to August 2010. For the capture of insects, deep in the soil trenches were (50 x 50 x 30 width x length x depth). It was observed that county of Maracaju has a high incidence of soil insects in sugarcane crop. Specimens of the family Scarabaeidae are abundant in sugarcane fields of the state of Mato Grosso do Sul, being Liogenys suturalis the predominant species. Soil insects of the Chrysomelidae family were found with greater abundance in Dourados and Naviraí while Noctuidae, represented only by the Hyponeuma taltula, occurred mainly in Dourados. Insects of the family Termitidae occur in sugarcane fields in the counties of Maracaju and Naviraí but not in Nova Alvorada do Sul and Dourados. Sphenophorus levis and Metamasius hemipterus were alsoreported in the sugarcane fields from Maracaju, being the occurrence these species the first record in the Mato Grosso do Sul State. The determined occurrence of different soil insects in the sugarcane fields may help in their management in the four counties studied.","PeriodicalId":10308,"journal":{"name":"Ciencia Rural","volume":"1 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67639130","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

Light-emitting diodes (LEDs) in development and response to water stress in Eucalyptus benthamii seedlings (Myrtaceae) benthamii桉幼苗发光二极管(led)的发育及其对水分胁迫的响应

IF 0.8 4区农林科学

Ciencia Rural Pub Date : 2023-04-17 DOI: 10.1590/0103-8478cr20220365

Ramon Silveira de Andrade, M. Navroski, Mariane de Oliveira Pereira, Alexandra Cristina Schatz Sá, K. H. Lencina

{"title":"Light-emitting diodes (LEDs) in development and response to water stress in Eucalyptus benthamii seedlings (Myrtaceae)","authors":"Ramon Silveira de Andrade, M. Navroski, Mariane de Oliveira Pereira, Alexandra Cristina Schatz Sá, K. H. Lencina","doi":"10.1590/0103-8478cr20220365","DOIUrl":"https://doi.org/10.1590/0103-8478cr20220365","url":null,"abstract":"ABSTRACT: Plants use light as a source of energy in the process of photosynthesis. Different levels of luminosity cause physiological and morphological changes in the plant, and its success depends on its adaptation to these different levels. Light emitting diodes (LED) have been proposed as a light source in controlled environments. The present research evaluated physiological and morphological aspects in Eucalyptus benthamii (Myrtaceae) seedlings kept under different colors of LED lamps and submitted to water stress. The experiment was carried out in a completely randomized design, in which the treatments were defined as: T1 (control, with white light); T2 (blue light); T3 (red light) and T4 (mixed blue and red light). Red light resulted in the best response to most morphological variables in plant growth. In response to water stress, blue light LEDs resulted in a better seedling response, with slower reduction of photosynthetic rate and other variables. This may indicate the possibility of reducing water deficit damage in seedlings acclimated to blue light prior to field planting.","PeriodicalId":10308,"journal":{"name":"Ciencia Rural","volume":"1 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67640067","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

Bovine abortion due to Bacillus cereus in Midwest Brazil 巴西中西部蜡样芽孢杆菌引起的牛流产

IF 0.8 4区农林科学

Ciencia Rural Pub Date : 2023-04-17 DOI: 10.1590/0103-8478cr20220565

Marlon Ribeiro, D. J. F. Silva, M. T. Costa, L. Nakazato, V. Dutra, M. A. Souza, C. Pescador

引用次数: 0

A comprehensive case study on the sustainability of tropical dairy cattle farming in Oaxaca, Mexico 墨西哥瓦哈卡州热带奶牛养殖可持续性的综合案例研究

IF 0.8 4区农林科学

Ciencia Rural Pub Date : 2023-04-17 DOI: 10.1590/0103-8478cr20210026

V. Martínez, Ángel de Jesús Bautista Valente, Urfila Victoria Peláez Estrada, José Luis Valenzuela Lagarda, Beatriz Herrera González, Pedro Cisneros Saguilán

{"title":"A comprehensive case study on the sustainability of tropical dairy cattle farming in Oaxaca, Mexico","authors":"V. Martínez, Ángel de Jesús Bautista Valente, Urfila Victoria Peláez Estrada, José Luis Valenzuela Lagarda, Beatriz Herrera González, Pedro Cisneros Saguilán","doi":"10.1590/0103-8478cr20210026","DOIUrl":"https://doi.org/10.1590/0103-8478cr20210026","url":null,"abstract":"ABSTRACT: Tropical dairy cattle farming is one the most relevant economic activities for food production; although, currently faces increasing scrutiny from society due to its potential harm to natural resources and the environment. Moreover, some factors are paramount for the evaluation of the sustainability and productive potential of any given tropical dairy farm: soil quality, profitability, and energy efficiency. This study carried out a sustainability analysis in four types of tropical dairy cattle ranches, through three key indicators (economic profitability, energy efficiency and soil quality) and with a comprehensive approach in the Costa region of Oaxaca, Mexico. Therefore, four farms of different sizes (i.e., small, medium, large, and very large) were selected in Costa de Oaxaca, Mexico. The data collection was carried out for daily milk production, the dynamics of farm inputs (introduction or removal) from the production system, alongside with collection of soil samples. The agroecosystems evaluated were economically profitable, and those with greater intensification of their pasture areas display higher profit margins and energy efficiency. In terms of soil quality, there is a regular potential for its rational utilization.","PeriodicalId":10308,"journal":{"name":"Ciencia Rural","volume":"14 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67626051","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

Incidence of Begomovirus and Crinivirus in tomato and potato crops in Paraná State, Brazil 巴西帕拉那<e:1>州番茄和马铃薯作物中Begomovirus和Crinivirus的发病率

IF 0.8 4区农林科学

Ciencia Rural Pub Date : 2023-04-17 DOI: 10.1590/0103-8478cr20210883

Evandro Keller, G. Koch, Mayara Catherine Candido Silva, P. Wyler, J. C. Barbosa, J. Rezende, H. Duarte, R. Calegario

引用次数: 0

Agro-industrial residues in the control of gastrointestinal nematodes of small ruminants and fertilization of forages 农用工业残留物在小反刍动物胃肠道线虫防治及牧草施肥中的应用

IF 0.8 4区农林科学

Ciencia Rural Pub Date : 2023-04-17 DOI: 10.1590/0103-8478cr20220301

I. C. Hassum, H. A. Souza, T. M. Leal, Rita de Kássia Oliveira Tavares, R. B. A. Araújo Neto, Jenefer de Oliveira Nunes, José Alves Pereira Neto

{"title":"Agro-industrial residues in the control of gastrointestinal nematodes of small ruminants and fertilization of forages","authors":"I. C. Hassum, H. A. Souza, T. M. Leal, Rita de Kássia Oliveira Tavares, R. B. A. Araújo Neto, Jenefer de Oliveira Nunes, José Alves Pereira Neto","doi":"10.1590/0103-8478cr20220301","DOIUrl":"https://doi.org/10.1590/0103-8478cr20220301","url":null,"abstract":"ABSTRACT: Verminosis in small ruminants can render rural activity impractical, which is still controlled through the administration of anthelmintics. The present study evaluated four agro-industrial residues as fertilizer in the control of GIN of small ruminants in the free-living stage. Crab shell, manipueira, biochar, and organomineral residues were used in pots (5.0 kg of soil) and cultivated with Massai grass (Megathyrsus maximum cv. Massai). Further, the pots were contaminated with feces from sheep carrying a natural multispecific infection by GIN. Next, the residues were applied individually to the soil, with 50 mL/pot for liquid and 50 g/pot for solid residues. Treatment with manipueira showed the lowest number of L3.kg MS-1 recovered from the grass (202.44), when compared with treatments using organomineral (823.89) and biochar (689.34). However, there was no statistically significant difference (P < 0.05) between the four treatments as compared to the control group. These agro-industrial residues can be used as organic fertilizers; however, these will not help in the control of GIN in sheep.","PeriodicalId":10308,"journal":{"name":"Ciencia Rural","volume":"78 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67638793","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

Multicriteria analysis model for foot-and-mouth disease risk classification in the state of Goiás - Brazil 巴西Goiás州口蹄疫风险分级的多标准分析模型

IF 0.8 4区农林科学

Ciencia Rural Pub Date : 2023-04-17 DOI: 10.1590/0103-8478cr20220669

Fernando Borges Bosso, V. Jayme, W. Teixeira, Guilherme Rocha Lino de Souza

{"title":"Multicriteria analysis model for foot-and-mouth disease risk classification in the state of Goiás - Brazil","authors":"Fernando Borges Bosso, V. Jayme, W. Teixeira, Guilherme Rocha Lino de Souza","doi":"10.1590/0103-8478cr20220669","DOIUrl":"https://doi.org/10.1590/0103-8478cr20220669","url":null,"abstract":"ABSTRACT: Foot-and-mouth disease (FMD) is a viral disease that affects several animal species, including domestic and wildlife ones. The occurrence of an FMD outbreak can potentially cause a large negative impact on countries or regions’ livestock production and economy. Performed over several decades, mass herd vaccination has been the main strategy to control the disease. However, countries are beginning the stage of eradicating FMD, which involves suspending vaccinations. The present study carried out a risk classification for FMD occurrence in Goiás State, Brazil by evaluating and combining multiple risk factors involved in FMD introduction and dissemination. Data from 126,345 rural properties were collected and categorized by municipality. The risk factors were grouped into two modules and then scores for each module were obtained by adding and weighting the risk factors. These combined scores resulted in the final FMD occurrence risk score. Most of the municipalities, as well as the herds were found in the lowest likelihood levels. Variables linked to herd density and animal movement played a key role in the score composition. We believed that this model can be a useful tool in the decision-making process regarding actions and strategies related to FMD eradication.","PeriodicalId":10308,"journal":{"name":"Ciencia Rural","volume":"1 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67642938","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

Genetic parameters and genetic trends for production traits in dairy Gir cattle 奶牛生产性状的遗传参数和遗传趋势

IF 0.8 4区农林科学

Ciencia Rural Pub Date : 2023-04-17 DOI: 10.1590/0103-8478cr20210541

N. S. Carvalho, D. Daltro, J. D. Machado, E. V. Camargo, J. A. Cobuci

引用次数: 0