Pesquisa Agropecuaria Brasileira最新文献_第4页

Bioactive compounds and antioxidant activity of leaves from olive trees grown in Paraná, Brazil 巴西帕拉纳<e:1>橄榄树叶子的生物活性化合物和抗氧化活性

IF 0.8 4区农林科学

Pesquisa Agropecuaria Brasileira Pub Date : 2023-02-17 DOI: 10.1590/s1678-3921.pab2023.v58.03025

J. C. R. Ribas, Anderson Lazzari, Lorena Beatriz Fagundes Gonzalez, Clandio Medeiros da Silva, L. Adamuchio, F. L. Cuquel, Rodrigo Sakurada, P. M. Pintro

{"title":"Bioactive compounds and antioxidant activity of leaves from olive trees grown in Paraná, Brazil","authors":"J. C. R. Ribas, Anderson Lazzari, Lorena Beatriz Fagundes Gonzalez, Clandio Medeiros da Silva, L. Adamuchio, F. L. Cuquel, Rodrigo Sakurada, P. M. Pintro","doi":"10.1590/s1678-3921.pab2023.v58.03025","DOIUrl":"https://doi.org/10.1590/s1678-3921.pab2023.v58.03025","url":null,"abstract":"Abstract The objective of this work was to evaluate the bromatological composition, bioactive compounds, antioxidant activities, and color of the leaves of olive cultivars Arbosana, Arbequina, Frantoio, Manzanilla, and Koroneiki in northwestern Paraná, Brazil. Leaves of each cultivar were collected for the experiment, which was carried out in a completely randomized design. The dry matter (DM) of olive leaves contains mostly carbohydrates (56.15 to 59.42 g 100 g-1 DM) and fibers (17.37 to 19.73 g 100 g-1 DM) in its bromatological composition. The total polyphenol content ranges from 13.27 to 22.81 mg GAE g-1, with cultivar Manzanilla standing out, and the flavonoid content from 6.50 to 7.65 mg QE g-1. Manzanilla shows the highest antioxidant activity of 93.56 and 78.15% in the DPPH and ABTS assays, respectively. When compared with the other cultivars, Manzanilla and Koroneiki have leaves with a higher green intensity and total chlorophyll content of 0.958 and 0.833 mg 100 mL 1, respectively. In the ABTS assay, there is a correlation both between total polyphenol content and antioxidant activity and between chlorophyll content and antioxidant activity. Olive leaves have characteristics that allow their application as an additive or ingredient for the development of food products with satisfactory antioxidant activity.","PeriodicalId":19826,"journal":{"name":"Pesquisa Agropecuaria Brasileira","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67610128","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

Diagrammatic scale to quantify the damage caused by bean thrips to the peanut crop 用图表尺度量化豆蓟马对花生作物造成的损害

IF 0.8 4区农林科学

Pesquisa Agropecuaria Brasileira Pub Date : 2023-02-17 DOI: 10.1590/s1678-3921.pab2023.v58.03006

Ana Cecilia Crenna, C. Oddino, D. F. Giordano, J. Giuggia, D. Giovanini

引用次数: 0

Drying of butiá pulp by the foam-layer method and characterization of the obtained powder 泡沫层法对丁铁<e:1>纸浆的干燥及所得粉体的表征

IF 0.8 4区农林科学

Pesquisa Agropecuaria Brasileira Pub Date : 2023-02-17 DOI: 10.1590/s1678-3921.pab2023.v58.03050

Andreza Girelli, V. Sant'anna, M. Klein

{"title":"Drying of butiá pulp by the foam-layer method and characterization of the obtained powder","authors":"Andreza Girelli, V. Sant'anna, M. Klein","doi":"10.1590/s1678-3921.pab2023.v58.03050","DOIUrl":"https://doi.org/10.1590/s1678-3921.pab2023.v58.03050","url":null,"abstract":"Abstract The objective of this work was to develop a drying process using the foam-layer method to obtain the powder from butiá (Butia spp.) pulp, as well as to characterize this powder according to its yield and physicochemical and technological characteristics. The foam was optimized for density and stability by varying whipping times and albumin and xanthan gum concentrations. Foam drying was optimized for vitamin C retention and yield using different foam thicknesses and drying temperatures. The optimized foam showed a density of 0.25 g cm-3 and a high stability, being suitable for subsequent drying. The lowest foam thickness (0.50 cm) and the highest drying temperature (80°C) resulted in the highest retention of vitamin C, whereas the increase in drying temperature improved yield. The butiá pulp powder obtained under the optimized condition presented an acid pH of 3.25, a low humidity of 7.97%, a water activity of 0.206, a water retention capacity of 4.90 g H2O per gram of powder, a solubility of 74.40%, a soluble solids content of 61°Brix, and a predominantly yellow color. The foam-layer drying method can be used to obtain butiá pulp powder.","PeriodicalId":19826,"journal":{"name":"Pesquisa Agropecuaria Brasileira","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67609813","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: 1

Water salinity during masculinization of Nile tilapia in biofloc system 生物群落系统中尼罗罗非鱼雄性化过程中的水盐度

IF 0.8 4区农林科学

Pesquisa Agropecuaria Brasileira Pub Date : 2023-02-17 DOI: 10.1590/s1678-3921.pab2023.v58.03008

Rafael Cavaca Alves Do Valle, Marcos Antônio da Silva, É. R. Alvarenga, Sylvia Veloso da Matta, E. M. Turra

{"title":"Water salinity during masculinization of Nile tilapia in biofloc system","authors":"Rafael Cavaca Alves Do Valle, Marcos Antônio da Silva, É. R. Alvarenga, Sylvia Veloso da Matta, E. M. Turra","doi":"10.1590/s1678-3921.pab2023.v58.03008","DOIUrl":"https://doi.org/10.1590/s1678-3921.pab2023.v58.03008","url":null,"abstract":"Abstract The objective of this work was to evaluate the effect of different water salinity levels on the growth performance, survival, and masculinization rate of Nile tilapia (Oreochromis niloticus) larvae in a biofloc technology (BFT) system. Seven salinity levels (0, 2, 4, 6, 8, 10, and 12 g L-1) were tested during four weeks in the masculinization period after the absorption of the yolk sac in a matured biofloc system. The water quality variables were within the recommended range for Nile tilapia farming. However, the nitrite peaks were higher at higher salinity levels and were associated with the lower survival of fish at salinity levels equal to or higher than 6 g L-1. There was no difference between treatments for average final body weight and masculinization rate. Final biomass and survival decreased, and the feed offered as a proportion of final biomass showed the worst results because of the increase in salinity. Therefore, since higher masculinization rates are not obtained at slight and moderate levels of saline water, salinity should be kept close to 0 g L-1 for the masculinization protocol of Nile tilapia in a BFT, for a better survival and higher biomass of the fish, as well as a lower waste of the offered feed.","PeriodicalId":19826,"journal":{"name":"Pesquisa Agropecuaria Brasileira","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67610061","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

Puberty and parturition on the antral follicle count of female Nelore beef cattle 雌性耐洛尔肉牛青春期和分娩对卵泡计数的影响

4区农林科学

Pesquisa Agropecuaria Brasileira Pub Date : 2023-01-01 DOI: 10.1590/s1678-3921.pab2023.v58.03140

Luiz Francisco Machado Pfeifer, Jair Sábio de Oliveira Júnior, Marcelo Marcondes Seneda, Higor Souza de Camargo, Fábio Morotti, Evelyn Rabelo Andrade, Elizângela Mirian Moreira, Jéssica Souza Andrade, George Moreira da Silva, Marlos Oliveira Porto, Jucilene Cavali

引用次数: 0

Mating behavior and sexual dimorphism of the Lobiopa insularis (Coleoptera: Nitidulidae) strawberry pest 草莓害虫叶蛾的交配行为及雌雄二型性

4区农林科学

Pesquisa Agropecuaria Brasileira Pub Date : 2023-01-01 DOI: 10.1590/s1678-3921.pab2023.v58.03187

Antonioni Campos Acácio Moliterno, Maycon Roberto da Silva, Maria Aparecida Cassilha Zawadneak, Paulo Henrique Gorgatti Zarbin

引用次数: 0

Genetic cause and effect interrelationships for grain quality attributes of irrigated rice 灌稻籽粒品质性状的遗传因果关系

4区农林科学

Pesquisa Agropecuaria Brasileira Pub Date : 2023-01-01 DOI: 10.1590/s1678-3921.pab2023.v58.03252

Paulo Henrique Karling Facchinello, Ivan Ricardo Carvalho, Eduardo Anibele Streck, Gabriel Almeida Aguiar, Janaína Goveia, Michele Feijó, Roberto Ramos Pereira, Paulo Ricardo Reis Fagundes, Murilo Vieira Loro, Luciano Carlos da Maia, Ariano Martins de Magalhães Júnior

{"title":"Genetic cause and effect interrelationships for grain quality attributes of irrigated rice","authors":"Paulo Henrique Karling Facchinello, Ivan Ricardo Carvalho, Eduardo Anibele Streck, Gabriel Almeida Aguiar, Janaína Goveia, Michele Feijó, Roberto Ramos Pereira, Paulo Ricardo Reis Fagundes, Murilo Vieira Loro, Luciano Carlos da Maia, Ariano Martins de Magalhães Júnior","doi":"10.1590/s1678-3921.pab2023.v58.03252","DOIUrl":"https://doi.org/10.1590/s1678-3921.pab2023.v58.03252","url":null,"abstract":"Abstract The objective of this work was to determine the genetic correlations and the direct and indirect associations of agronomic traits and grain quality attributes with the percentage of whole grains in flood irrigated rice. The experiment was carried out in two environments, in a randomized complete block design with three replicates, using 23 irrigated rice genotypes. The evaluated traits were: percentage of whole grains, caryopsis length, caryopsis width, panicle length, panicle weight, 1,000 grain weight, days to flowering, percentage of chalky grains with white belly, total chalky area, total whiteness, vitreous whiteness, and defects in coloring. The percentage of grains with white belly and total chalky area were positively correlated, whereas the percentage of grains with white belly and vitreous whiteness were negatively correlated. The traits caryopsis width, percentage of chalky grains with white belly, panicle weight, and 1,000 grain weight showed indirect effects on whole-grain yield response according to total chalky area and total whiteness. Total chalky area and total whiteness are the factors that most negatively influence the percentage of whole grains according to the genotypic correlations and direct effects.","PeriodicalId":19826,"journal":{"name":"Pesquisa Agropecuaria Brasileira","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135060328","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

Physiological and phenotypical effects of the overexpression of the OVP1 gene in Japonica rice 粳稻OVP1基因过表达的生理和表型效应

4区农林科学

Pesquisa Agropecuaria Brasileira Pub Date : 2023-01-01 DOI: 10.1590/s1678-3921.pab2023.v58.03167

Dhiôvanna Corrêia Rocha, Thaís Ignez da Cruz, João Augusto Vieira de Oliveira, Isabela Pavanelli de Souza, Beata Dedicova, Alexandre Siqueira Guedes Coelho, Rosana Pereira Vianello, Claudio Brondani

{"title":"Physiological and phenotypical effects of the overexpression of the OVP1 gene in Japonica rice","authors":"Dhiôvanna Corrêia Rocha, Thaís Ignez da Cruz, João Augusto Vieira de Oliveira, Isabela Pavanelli de Souza, Beata Dedicova, Alexandre Siqueira Guedes Coelho, Rosana Pereira Vianello, Claudio Brondani","doi":"10.1590/s1678-3921.pab2023.v58.03167","DOIUrl":"https://doi.org/10.1590/s1678-3921.pab2023.v58.03167","url":null,"abstract":"Abstract The objective of this work was to evaluate the physiological, phenotypic, and gene expression parameters in genetically modified (GM) rice plants that overexpress the Oryza sativa Vacuolar H+-Pyrophosphatase 1 (OVP1) gene, compared with non-genetically modified (NGM) rice. GM and NGM plants of the BRSMG Curinga cultivar were evaluated in two experiments, in a laboratory and greenhouse, in a randomized complete block design, with four replicates. Agronomic traits of interest were estimated, and transcriptome analysis and gene expression quantification were carried out. GM plants showed a 31 and 21% higher number of spikelets per panicle and total number of grains per panicle, respectively, in comparison with NGM plants. Physiological changes occurred during the grain-filling stage, in which GM plants presented a photosynthetic rate and carboxylation efficiency 61 and 89% higher than those of NGM plants, respectively. The overexpression of the OVP1 gene favors the upregulation of some photosynthesis genes and the increase in the number of spikelets and in the photosynthetic rate, but does not favor the increase in grain yield.","PeriodicalId":19826,"journal":{"name":"Pesquisa Agropecuaria Brasileira","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136302687","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

Genome-wide association of iron content in rice grains grown in Southern Brazil 巴西南部水稻中铁含量的全基因组关联

4区农林科学

Pesquisa Agropecuaria Brasileira Pub Date : 2023-01-01 DOI: 10.1590/s1678-3921.pab2023.v58.03203

Victoria Freitas de Oliveira, Eduardo Venske, Cássia Fernanda Stafen, Fernanda Pollo Paniz, Tatiana Pedron, Rodrigo Mendes Pereira, Ariano Martins de Magalhães Júnior, Luciano Carlos da Maia, Antonio Costa de Oliveira, Bruno Lemos Batista, Camila Pegoraro

引用次数: 0

Herbal choline as an alternative to choline chloride in the diet of nursery piglets 草药胆碱替代氯化胆碱在保育仔猪日粮中的应用

4区农林科学

Pesquisa Agropecuaria Brasileira Pub Date : 2023-01-01 DOI: 10.1590/s1678-3921.pab2023.v58.03246

Letícia Lopes de Godoi, Laya Kannan Silva Alves, Ana Luísa Neves Alvarenga Dias, Hebert Silveira, Cesar Augusto Pospissil Garbossa

引用次数: 0