Pesquisa Agropecuária Brasileira最新文献_第2页

Viability of peach palm by-product, Spirulina platensis, and spinach for the enrichment of dehydrated soup 桃棕副产物、螺旋藻、菠菜脱水汤的活力富集

Pesquisa Agropecuária Brasileira Pub Date : 2018-11-01 DOI: 10.1590/s0100-204x2018001100008

P. R. Los, D. R. S. Simões, R. Leone, B. C. Bolanho, Taís Cardoso, E. Danesi

{"title":"Viability of peach palm by-product, Spirulina platensis, and spinach for the enrichment of dehydrated soup","authors":"P. R. Los, D. R. S. Simões, R. Leone, B. C. Bolanho, Taís Cardoso, E. Danesi","doi":"10.1590/s0100-204x2018001100008","DOIUrl":"https://doi.org/10.1590/s0100-204x2018001100008","url":null,"abstract":"Abstract: The objective of this work was to develop dehydrated soup formulations using flour from peach palm by-product (PPB), Spirulina platensis or spinach, as well as to evaluate their composition by physical, chemical, instrumental, and sensory methods. Four formulations were developed: standard, PPB flour, PPB flour and S. platensis, and PPB flour and spinach. The samples were analyzed for proximate composition, chlorophyll content, total phenolic compounds, antioxidant activity, color, viscosity, water absorption, and microbiological parameters. The sensory characterization was performed by the check-all-that-apply method. The soups containing spinach or S. platensis presented the highest protein contents of 3.3 and 4.6 g 100 g-1, respectively. The soups formulated with the microalgae S. platensis showed higher contents of fibers, lipids, and antioxidants. Changes were observed in the color and viscosity of the soups. The standard dehydrated soup was characterized as shiny, creamy, with seasoning flavor and fragments, and a pale-yellow color; the formulation with spinach, as grainy, with an herb odor and flavor, seasoning fragments, and a dark-green color; and with S. platensis, with herb flavor, seasoning fragments, and a dark-green color. The developed formulations are within the microbiological standards for food established by the Brazilian legislation. The sensory analysis revealed a new market niche, and the soups containing PPB and S. platensis showed good acceptability. Peach palm flour, Spirulina platensis, and spinach are alternatives for the nutritional enrichment of dehydrated soups with high protein, ash, fiber, and antioxidant contents.","PeriodicalId":185886,"journal":{"name":"Pesquisa Agropecuária Brasileira","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128209970","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

Soil physical and biological properties in an integrated crop-livestock system in the Brazilian Cerrado 巴西塞拉多农牧一体化系统的土壤物理和生物特性

Pesquisa Agropecuária Brasileira Pub Date : 2018-11-01 DOI: 10.1590/s0100-204x2018001100006

J. A. Bonetti, H. B. Paulino, E. D. Souza, M. Carneiro, J. O. Caetano

{"title":"Soil physical and biological properties in an integrated crop-livestock system in the Brazilian Cerrado","authors":"J. A. Bonetti, H. B. Paulino, E. D. Souza, M. Carneiro, J. O. Caetano","doi":"10.1590/s0100-204x2018001100006","DOIUrl":"https://doi.org/10.1590/s0100-204x2018001100006","url":null,"abstract":"Abstract: The objective of this work was to evaluate the soil physical and biological properties in an integrated crop-livestock system (ICLS), with or without cattle grazing, in different seasons. The experiment was carried out in the Cerrado biome, in Brazil, in a Rhodic Eutrudox. The treatments consisted of grazing areas (Urochloa ruziziensis) at 0.25, 0.35, and 0.45 m heights (with soybean cultivation after grazing) and of nongrazed areas. The ICLS had no negative effects on soil bulk density, total porosity, macroporosity, and microporosity. After ICLS implementation, the values of soil bulk density decreased, and those of soil macroporosity increased, in the grazed and nongrazed areas. However, after three years, bulk density and macroporosity were reestablished to values similar to those before ICLS implementation. Soil penetration resistance was higher in the ICLS, mainly at 0.00-0.05 m soil depth. After four years, ICLS promoted the increase of microbial biomass C and N and the reduction of the metabolic quotient. The microbial biomass carbon and the metabolic quotient were related to the weighted mean diameter. ICLS benefits to soil physical and biological properties are associated with adequate ICLS implementation, adequate grazing height (0.35 m), and maintenance of soil cover.","PeriodicalId":185886,"journal":{"name":"Pesquisa Agropecuária Brasileira","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116598706","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: 6

Resistance of cotton genotypes to Sclerotinia sclerotiorum by the straw and oxalic acid tests 棉花基因型对菌核病的抗性稻草和草酸试验

Pesquisa Agropecuária Brasileira Pub Date : 2018-11-01 DOI: 10.1590/s0100-204x2018001100011

L. H. Aguiar, L. B. Sousa, L. Coelho, E. Lemes, L. H. R. Castro, D. Cardoso

引用次数: 0

Bayesian approach, traditional method, and mixed models for multienvironment trials of soybean 大豆多环境试验的贝叶斯方法、传统方法及混合模型

Pesquisa Agropecuária Brasileira Pub Date : 2018-10-01 DOI: 10.1590/s0100-204x2018001000002

Alysson J da Silva, A. Sanches, Andréa Carla Bastos Andrade, G. Oliveira, A. D. Mauro

{"title":"Bayesian approach, traditional method, and mixed models for multienvironment trials of soybean","authors":"Alysson J da Silva, A. Sanches, Andréa Carla Bastos Andrade, G. Oliveira, A. D. Mauro","doi":"10.1590/s0100-204x2018001000002","DOIUrl":"https://doi.org/10.1590/s0100-204x2018001000002","url":null,"abstract":"Abstract: The objective of this work was to compare the Bayesian approach and the frequentist methods to estimate means and genetic parameters in soybean multienvironment trials. Fifty-one soybean lines and four controls were evaluated in a randomized complete block design, in six environments, with three replicates, and soybean grain yield was determined. The half-normal prior and uniform distributions were used in combination with parameters obtained from data of 18 genotypes collected in previous and related experiments. The genotypic values of the genotypes of high- and low-grain yield, clustered by the Bayesian approach, differed from the means obtained by the frequentist inference. Soybean assessed through the Bayesian approach showed genetic parameter values of the mixed model (REML/Blup) close to those of the following variables: mean heritability (h2mg), accuracy of genotype selection (Acgen), coefficient of genetic variation (CVgi%), and coefficient of environmental variation (CVe%). Therefore, the mixed model methodology and the Bayesian approach lead to similar results for genetic parameters in multienvironment trials.","PeriodicalId":185886,"journal":{"name":"Pesquisa Agropecuária Brasileira","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125014246","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

Incorporation of compound inflorescences and selection of high-yielding progenies in cowpea 豇豆复合花序的组合与高产后代的选择

Pesquisa Agropecuária Brasileira Pub Date : 2018-10-01 DOI: 10.1590/s0100-204x2018001000008

Karla Annielle da Silva Bernardo, Francisco Rodrigues Freire Filho, V. Q. Ribeiro, P. F. D. M. J. Vieira, Â. C. D. A. Lopes, R. Oliveira

引用次数: 1

Foliar spraying with bacterial biocontrol agents for the control of common bacterial blight of bean 叶面喷施细菌生物防治剂防治大豆常见细菌性枯萎病

Pesquisa Agropecuária Brasileira Pub Date : 2018-10-01 DOI: 10.1590/s0100-204x2018001000003

Maurício Sangiogo, D. Rodríguez, R. Moccellin, J. Bermúdez, B. Corrêa, A. B. Moura

{"title":"Foliar spraying with bacterial biocontrol agents for the control of common bacterial blight of bean","authors":"Maurício Sangiogo, D. Rodríguez, R. Moccellin, J. Bermúdez, B. Corrêa, A. B. Moura","doi":"10.1590/s0100-204x2018001000003","DOIUrl":"https://doi.org/10.1590/s0100-204x2018001000003","url":null,"abstract":"The objective of this work was to evaluate the effect of foliar spraying with bacterial biocontrol agents (BBAs) on the control of common bacterial blight (CBB) of bean, and on the induction of systemic resistance in bean plants. CBB control by BBAs was evaluated by spraying bean leaves 48 and 24 hours before and after pathogen inoculation (BPI and API, respectively), with: DFs93, Bacillus cereus ; DFs513, Pseudomonas veronii ; DFs769, B . cereus ; the C01 combination, DFs93 + DFs769 + DFs831 ( Pseudomonas fluorescens ); the C03 combination, DFs348 ( Bacillus sp.) + DFs769 + DFs831; and water (control). Systemic effects were analyzed after spraying DFs513, DFs769, C03, and water 72 and 48 hours BPI. Phaseolin production induced by DFs348, DFs513, DFs769, DFs831, and water was also assessed. DFs513, DFs769, and C03 significantly reduced disease incidence (area under disease progress curve), regardless of spraying time and disease severity when sprayed 72 and 48 hours BPI. The DFs769 and DFs831 isolates induced the accumulation of phytoalexin (phaseolin). Therefore, DFs513, DFs769, and C03 show potential for the biocontrol of CBB when applied preventively on bean leaves, besides inducing systemic resistance.","PeriodicalId":185886,"journal":{"name":"Pesquisa Agropecuária Brasileira","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121729569","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

Eggshell microbiology and quality of hatching eggs subjected to different sanitizing procedures 不同消毒方法对蛋壳微生物学和孵化蛋质量的影响

Pesquisa Agropecuária Brasileira Pub Date : 2018-10-01 DOI: 10.1590/s0100-204x2018001000011

W. Clímaco, E. F. Melo, D. P. Vaz, M. M. Saldanha, M. F. V. S. Pinto, Letícia Carolina Cleto Fernandes, N. Baião, L. Oliveira, F. Sant'Anna, M. Souza, L. J. Lara

{"title":"Eggshell microbiology and quality of hatching eggs subjected to different sanitizing procedures","authors":"W. Clímaco, E. F. Melo, D. P. Vaz, M. M. Saldanha, M. F. V. S. Pinto, Letícia Carolina Cleto Fernandes, N. Baião, L. Oliveira, F. Sant'Anna, M. Souza, L. J. Lara","doi":"10.1590/s0100-204x2018001000011","DOIUrl":"https://doi.org/10.1590/s0100-204x2018001000011","url":null,"abstract":"Abstract: The objective of this work was to evaluate the effect of different disinfection procedures as alternatives to formaldehyde fumigation on eggshell microbial load and quality of eggs from a 42-week-old Cobb commercial breeder flock. A total of 10,080 clean eggs collected from the nests were randomly distributed in a randomized complete block design, among the following treatment groups: 13.33 g m-3 formaldehyde fumigation, 5-10 ppm ozone fumigation, 6.36 mW cm-2 UV-C light irradiation, spraying with 1.56% hydrogen peroxide, spraying with 0.13% peracetic acid, spraying with water (wet control), and no disinfection procedure (dry control). Per treatment, eight samples of four eggs each were collected before and after the disinfection procedure, in order to count the number of Enterobacteriaceae and total aerobic mesophilic bacteria on the eggshell. Only eggs subjected to the formaldehyde and UV treatments showed a significant reduction in total aerobic mesophilic bacterial count on the eggshell, when compared with those of the dry control group. Treatments did not affect eggshell thickness and resistance force. UV light exposure is effective in reducing microbial load on 42-week-old breeder flock eggshells, without affecting their quality, and can be considered an alternative to formaldehyde disinfection.","PeriodicalId":185886,"journal":{"name":"Pesquisa Agropecuária Brasileira","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124071529","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: 13

Growth and yield of teak stands at different spacing 不同行距下柚木的生长和产量

Pesquisa Agropecuária Brasileira Pub Date : 2018-10-01 DOI: 10.1590/s0100-204x2018001000004

R. Medeiros, H. N. Paiva, Flávio Siqueira D’Ávila, H. Leite

引用次数: 3

Corn agronomic traits and recovery of nitrogen from fertilizer during crop season and off-season 玉米农艺性状与季、淡季氮肥回收

Pesquisa Agropecuária Brasileira Pub Date : 2018-10-01 DOI: 10.1590/s0100-204x2018001000009

L. F. G. Fuentes, L. C. F. D. Souza, A. Serra, J. Rech, A. Vitorino

{"title":"Corn agronomic traits and recovery of nitrogen from fertilizer during crop season and off-season","authors":"L. F. G. Fuentes, L. C. F. D. Souza, A. Serra, J. Rech, A. Vitorino","doi":"10.1590/s0100-204x2018001000009","DOIUrl":"https://doi.org/10.1590/s0100-204x2018001000009","url":null,"abstract":"Abstract: The objective of this work was to evaluate corn agronomic traits in a cultivation subjected to different N rates, during the fall-winter (off-season) and spring-summer crop seasons, and N recovery from fertilizer. The experiment was set up in a randomized complete block design with four replicates, in a 5x2 factorial arrangement, with the following treatments: five N topdressing rates - 0, 30, 60, 90, and 120 kg ha-1 -, using urea as source; and two crop seasons, fall-winter and spring-summer. The following variables were determined: plant height, height of the first ear insertion, number of grains per ear, diameter and length of ear, 1,000-grain weight, N concentration in the leaves and grains, grain-protein concentration, grain yield, N recovery from fertilizer, and soil-N supply. Nitrogen rates in the fertilizer in the fall-winter season had no effect on grain yield, although corn agronomic traits showed a greater reliance on fertilizer-N rates in that season than in the spring-summer, which is a season associated to a greater capacity of soil-N supply to plants. The quantification of soil-N supply enabled knowing the nutrient dynamics during the fall-winter and the spring-summer seasons, which may be useful to guide N fertilization of corn.","PeriodicalId":185886,"journal":{"name":"Pesquisa Agropecuária Brasileira","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115406914","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: 8

Runs of homozygosity for autozygosity estimation and genomic analysis in production animals 用于生产动物自合子估计和基因组分析的纯合子序列

Pesquisa Agropecuária Brasileira Pub Date : 2018-09-01 DOI: 10.1590/s0100-204x2018000900001

A. B. Rebelato, A. R. Caetano

{"title":"Runs of homozygosity for autozygosity estimation and genomic analysis in production animals","authors":"A. B. Rebelato, A. R. Caetano","doi":"10.1590/s0100-204x2018000900001","DOIUrl":"https://doi.org/10.1590/s0100-204x2018000900001","url":null,"abstract":"Abstract: Runs of homozygosity (ROHs) are long stretches of homozygous genomic segments, identifiable by molecular markers, which can provide genomic information for accurate estimates to characterize populations, determine evolutionary history and demographic information, estimate levels of consanguinity, and identify selection signatures in production animals. This review paper aims to perform a survey of the works on the efficiency of ROHs for these purposes. Factors such as genetic drift, natural or artificial selection, founder effect, and effective population size directly influence the size and distribution of ROHs along the genome. Individually, genome estimates of consanguinity based on ROHs can be obtained using the FROH index, which is generally considered more accurate than indexes based on other types of genomic or genealogical information. High frequencies of specific ROHs in a population can be used to identify selection signatures. The results of recent studies with ROHs in domestic animals have shown the efficiency of their use to characterize herds in a reliable and accessible way, using genomic information.","PeriodicalId":185886,"journal":{"name":"Pesquisa Agropecuária Brasileira","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123871347","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: 8