Pesquisa Agropecuaria Brasileira最新文献

Correlation between carbon isotopic composition and morphological, micromorphological, anatomical, and physiological traits in rice 碳同位素组成与水稻形态、微形态、解剖和生理性状的相关性

IF 0.8 4区农林科学

Pesquisa Agropecuaria Brasileira Pub Date : 2023-08-28 DOI: 10.1590/s1678-3921.pab2023.v58.02854

G. Concenço, G. Brito, V. Costa, Laryssa Lemos da Silva, T. S. Melo, P. R. R. Fagundes, W. B. Scivittaro, S. Deuner

引用次数: 0

Storability of 'SCS417 Monalisa' apple as affected by harvest maturity, 1-methylcyclopropene treatment, and storage atmosphere SCS417 Monalisa苹果采后成熟度、1-甲基环丙烯处理和贮藏气氛对贮藏性的影响

IF 0.8 4区农林科学

Pesquisa Agropecuaria Brasileira Pub Date : 2023-08-28 DOI: 10.1590/s1678-3921.pab2023.v58.03121

L. Argenta, F. Thewes, R. O. Anese, S. T. D. Freitas, J. M. Moura-Bueno, C. Ogoshi, Priscila Baseggio

{"title":"Storability of 'SCS417 Monalisa' apple as affected by harvest maturity, 1-methylcyclopropene treatment, and storage atmosphere","authors":"L. Argenta, F. Thewes, R. O. Anese, S. T. D. Freitas, J. M. Moura-Bueno, C. Ogoshi, Priscila Baseggio","doi":"10.1590/s1678-3921.pab2023.v58.03121","DOIUrl":"https://doi.org/10.1590/s1678-3921.pab2023.v58.03121","url":null,"abstract":"Abstract The objective of this work was to determine the storability of 'SCS417 Monalisa' apple fruit in response to harvest maturity, 1-methylcyclopropene (1-MCP) treatment, and storage atmospheres. Fruit quality was evaluated after two, four, six, and eight months plus one day or seven days in shelf life at 22°C. The controlled atmosphere (CA) and 1-MCP (1.0 μL L-1) treatments reduce fruit ethylene production and respiration, prevent rapid softening, and inhibit the incidence of scald-like symptoms, flesh browning, cracking, and fungal decay, in comparison with air storage . The combination of 1-MCP and CA provides additive benefits in firmness retention and in the reduction of the incidence of physiological disorders. CA and/or 1-MCP increase the risk of fruit developing wrinkly skin disorder. The loss of flesh firmness and acidity and the development of all physiological disorders and decay are higher in late-harvested fruit. The storage life of 'SCS417 Monalisa' apple is about two months in cold air and from six to eight months in cold CA, considering the time necessary to reach a flesh firmness of 53 N. The limiting factor for the long-term storage of 'SCS417 Monalisa' apple fruit under CA without 1-MCP is the development of physiological disorders and fungal decay.","PeriodicalId":19826,"journal":{"name":"Pesquisa Agropecuaria Brasileira","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67610293","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

Potential use of sweet potato leaves for human consumption 甘薯叶供人类食用的潜在用途

IF 0.8 4区农林科学

Pesquisa Agropecuaria Brasileira Pub Date : 2023-08-28 DOI: 10.1590/s1678-3921.pab2023.v58.02991

André Boscolo Nogueira da Gama, E. A. D. Silva, V. C. A. Andrade Júnior, O. G. Brito, Ariana da Silva Costa, P. Y. Cavasin, E. E. Carvalho

{"title":"Potential use of sweet potato leaves for human consumption","authors":"André Boscolo Nogueira da Gama, E. A. D. Silva, V. C. A. Andrade Júnior, O. G. Brito, Ariana da Silva Costa, P. Y. Cavasin, E. E. Carvalho","doi":"10.1590/s1678-3921.pab2023.v58.02991","DOIUrl":"https://doi.org/10.1590/s1678-3921.pab2023.v58.02991","url":null,"abstract":"Abstract The objective of this work was to select sweet potato (Ipomoea batatas) genotypes with leaves with potential to be used for human consumption. Twenty-six experimental genotypes and four commercial cultivars were tested in a randomized complete block design with three replicates and ten plants per plot. The trial was carried out in the municipality of Lavras, in the state of Minas Gerais, Brazil. Leaf shape and lobe, aerial-part yield, edible-leaf yield, edible-leaf percentage, edible-leaf dry mass, and latex production, as well as leaf total chlorophyll, pH, soluble solids contents, titratable acidity, total phenolic compounds, and anthocyanin contents, were evaluated. Roots were characterized as to their pulp and peel colors. Fifteen genotypes presented the highest aerial-part (29.6 to 51.8 Mg ha-1) and edible leaf (7.8 to 12.7 Mg ha-1) yields. In the biochemical analysis, high contents of chlorophyll, total phenolics, and anthocyanins were observed. In addition, pH, soluble solids, and leaf titratable acidity did not differ significantly among the evaluated genotypes. Leaves of ten genotypes are recommended for human consumption.","PeriodicalId":19826,"journal":{"name":"Pesquisa Agropecuaria Brasileira","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67610014","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

Drought tolerance induced by the overexpression of the nuclear rbcL gene in rice 水稻核rbcL基因过表达诱导的抗旱性

IF 0.8 4区农林科学

Pesquisa Agropecuaria Brasileira Pub Date : 2023-08-28 DOI: 10.1590/s1678-3921.pab2023.v58.03181

João Augusto Vieira de Oliveira, R. P. Vianello, A. C. Lanna, B. Dedicova, Dhiôvanna Corrêia Rocha, C. Brondani

{"title":"Drought tolerance induced by the overexpression of the nuclear rbcL gene in rice","authors":"João Augusto Vieira de Oliveira, R. P. Vianello, A. C. Lanna, B. Dedicova, Dhiôvanna Corrêia Rocha, C. Brondani","doi":"10.1590/s1678-3921.pab2023.v58.03181","DOIUrl":"https://doi.org/10.1590/s1678-3921.pab2023.v58.03181","url":null,"abstract":"Abstract The objective of this work was to determine whether the overexpression of the nuclear Rubisco large subunit (rbcL) improves the drought tolerance of the genetically modified (GM) BRSMG Curinga upland rice (Oryza sativa) cultivar. GM and non-genetically modified (NGM) plants of the same cultivar were compared under the two following water treatments: well watered (WW) and water deficit (WD). The performance of the agronomic traits of GM plants, including grain yield, was superior to that of NGM plants in both treatments. By quantitative polymerase chain reaction, GM plants show a significantly higher expression of the rbcL gene in both WW and WD, as well as a larger amount of abscisic acid. With the RNAseq analysis, almost three times more upregulated genes are identified in GM plants in stage 2 after water restriction, indicating a greater protection against water deficit. The higher expression of genes related to the protection of the cellular metabolism and a series of physiological alterations may be involved in the increase in the drought tolerance of GM rice plants overexpressing the rbcL gene.","PeriodicalId":19826,"journal":{"name":"Pesquisa Agropecuaria Brasileira","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67610398","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

Biosecurity assessment of commercial pig farms in Santa Catarina, Brazil 巴西圣卡塔琳娜市商业养猪场的生物安全评价

IF 0.8 4区农林科学

Pesquisa Agropecuaria Brasileira Pub Date : 2023-08-25 DOI: 10.1590/s1678-3921.pab2023.v58.02707

Martin de Marco, M. Miele, Leticia Lopes, P. M. D. A. Costa, Jefferson de Santana Jacob, J. Zanella

{"title":"Biosecurity assessment of commercial pig farms in Santa Catarina, Brazil","authors":"Martin de Marco, M. Miele, Leticia Lopes, P. M. D. A. Costa, Jefferson de Santana Jacob, J. Zanella","doi":"10.1590/s1678-3921.pab2023.v58.02707","DOIUrl":"https://doi.org/10.1590/s1678-3921.pab2023.v58.02707","url":null,"abstract":"Abstract The objective of this work was to develop an index of adequacy to minimum biosecurity conditions (IAB) to express the external biosecurity level of pig farms in the state of Santa Catarina, Brazil. Pig farms of producers registered in the database of Companhia Integrada de Desenvolvimento Agrícola de Santa Catarina were sampled through an online questionnaire, with 76 questions on farm identification, production system, relationship with the agroindustry, herd size, and external biosecurity. One hundred questionnaires were answered by the farmers, showing the existence, partial existence, or absence of biosecurity practices, with scores of 1.0, 0.5, and 0.0, respectively, used to calculate the IAB of each farm. The farrow to weaning farms were grouped into three categories of production units (farrow to finishing, farrow to rearing, or farrow to weaning) and two of relationships with the production chain (integrated or independent). The investments necessary to achieve the ideal biosecurity practices were estimated. The farms with a low IAB (< 40%) represented 33% of the total, and the remaining 67% of the farms were classified with a medium or high index, evidencing a good external biosecurity. The IAB can be used to measure the biosecurity of pig farms and, based on their classification, to support the design of intervention plans.","PeriodicalId":19826,"journal":{"name":"Pesquisa Agropecuaria Brasileira","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67610113","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

Variability among common bean lines for maximum dry matter accumulation in the grains 普通豆系籽粒中最大干物质积累的变异

IF 0.8 4区农林科学

Pesquisa Agropecuaria Brasileira Pub Date : 2023-08-25 DOI: 10.1590/s1678-3921.pab2023.v58.03180

Júlio Augusto de Castro Miguel, Rita de Kassia Siqueira Teixeira, A. F. B. Abreu, M. A. P. Ramalho, Elaine Aparecida de Souza

引用次数: 0

Physiological and yield parameters of wheat as affected by tiller removal and defoliation 分蘖和落叶对小麦生理和产量参数的影响

IF 0.8 4区农林科学

Pesquisa Agropecuaria Brasileira Pub Date : 2023-08-25 DOI: 10.1590/s1678-3921.pab2023.v58.03156

S. L. Fioreze, Iury Borga, Elisandra Cristina Ribeiro

引用次数: 0

Phenotyping methods and phenological stages to quantify the root system of common bean 用表型分型方法和物候分期定量测定普通豆根系

IF 0.8 4区农林科学

Pesquisa Agropecuaria Brasileira Pub Date : 2023-08-25 DOI: 10.1590/s1678-3921.pab2023.v58.03169

P. H. Cerutti, R. D. Melo, Luan Tiago dos Santos Carbonari, Pedro Antonio Schwarzer, A. F. Guidolin, J. Coimbra, Silmar Primieri

{"title":"Phenotyping methods and phenological stages to quantify the root system of common bean","authors":"P. H. Cerutti, R. D. Melo, Luan Tiago dos Santos Carbonari, Pedro Antonio Schwarzer, A. F. Guidolin, J. Coimbra, Silmar Primieri","doi":"10.1590/s1678-3921.pab2023.v58.03169","DOIUrl":"https://doi.org/10.1590/s1678-3921.pab2023.v58.03169","url":null,"abstract":"Abstract The objective of this work was to evaluate root phenotyping methods and the ideal phenological stage to quantify the root system of fixed and segregating common bean populations, in order to select superior genotypes. The experiment was carried out in two municipalities in the state of Santa Catarina, Brazil, and the treatments consisted of six genotypes, the Shovelomics and WinRHIZO root phenotyping methods, and the V4-4, R6, and R8 phenological stages. The simple lattice experimental design was used to evaluate the following variables: basal root angle, vertical root length, left and right horizontal root length, total root length, projected area, and root average volume and diameter. For all variables, there was a significant interaction between phenotyping methods and phenological stages, showing their influence on root system evaluation. The Shovelomics and WinRHIZO phenotyping methods are efficient in quantifying the root system of common bean plants and show specificity for phenological stages, regardless of the genotype. The quantification of the root system of fixed and segregating genotypes is analogous in both methods. The Shovelomics method is more efficient in evaluating the root system of common bean at the R8 stage, and the WinRHIZO method, at the R6 stage.","PeriodicalId":19826,"journal":{"name":"Pesquisa Agropecuaria Brasileira","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67610313","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

Magnesium thermophosphates from the Maicuru complex as sources of P and Mg in maize production 麦库鲁复合体热磷酸镁作为玉米生产中磷和镁的来源

IF 0.8 4区农林科学

Pesquisa Agropecuaria Brasileira Pub Date : 2023-08-25 DOI: 10.1590/s1678-3921.pab2023.v58.02892

C. Castro, M. Costa, R. F. Firmano, R. Guardani, George Silva

{"title":"Magnesium thermophosphates from the Maicuru complex as sources of P and Mg in maize production","authors":"C. Castro, M. Costa, R. F. Firmano, R. Guardani, George Silva","doi":"10.1590/s1678-3921.pab2023.v58.02892","DOIUrl":"https://doi.org/10.1590/s1678-3921.pab2023.v58.02892","url":null,"abstract":"Abstract The objective of this work was to investigate changes in soil chemical characteristics, phosphorous concentrations in maize leaves, and the agronomic efficiency (AE) of magnesium thermophosphates produced from rocks of the Maicuru complex in the Brazilian Amazon Basin, in comparison with triple superphosphate (TSP). The thermophosphates consisted of a mixture of raw material from apatite, dunite, and quartz sandstone from Maicuru, aiming to adjust the contents of P, Mg, and Si. The mixture was melted, ground, and subjected to the analysis of solubility, chemical characteristics, and granulometry. The experiment consisted of two rates of dolomitic lime (0 and 2.4 Mg ha-1), three rates of P (20, 60, and 100 mg kg-1 soil), and four sources of P (TSP and three Mg thermophosphates), as well as of two control treatments, with and without lime. Three replicates were carried out per treatment in pots containing plants of the BR 5107 maize hybrid. Phosphorous concentration was determined in maize leaves at 45 days after sowing. The Mg thermophosphates showed a high AE and a higher neutralizing effect with the application of lime, which improved soil chemical characteristics and AE. The thermophosphates obtained from rocks of the Maicuru complex can be an alternative P fertilizer in maize production.","PeriodicalId":19826,"journal":{"name":"Pesquisa Agropecuaria Brasileira","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67609959","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

Degradability of the dry matter and crude protein of fruits of Chloroleucon mangense and Acacia cochliacantha in sheep 锰绿果和金合欢果实干物质和粗蛋白质在绵羊体内的降解率

IF 0.8 4区农林科学

Pesquisa Agropecuaria Brasileira Pub Date : 2023-08-07 DOI: 10.1590/s1678-3921.pab2023.v58.03026

Gustavo Sosa-Pérez, S. López-Ortiz, P. Pérez-Hernández, H. Vaquera-Huerta, M. C. Galván, J. Gallegos-Sánchez

{"title":"Degradability of the dry matter and crude protein of fruits of Chloroleucon mangense and Acacia cochliacantha in sheep","authors":"Gustavo Sosa-Pérez, S. López-Ortiz, P. Pérez-Hernández, H. Vaquera-Huerta, M. C. Galván, J. Gallegos-Sánchez","doi":"10.1590/s1678-3921.pab2023.v58.03026","DOIUrl":"https://doi.org/10.1590/s1678-3921.pab2023.v58.03026","url":null,"abstract":"Abstract The objective of this work was to determine the nutritional content and the degradability of the dry matter and protein of fruits of Chloroleucon mangense and Acacia cochliacantha and of a 1:1 mixture of both, offered as supplements to Rambouillet sheep. In situ ruminal degradation was evaluated in three adult rams, fitted with a rumen cannula, with different incubation times of 0, 6, 12, 24, 48, and 72 hours. Protein intestinal degradability was quantified with a three-step procedure: in situ ruminal incubation, in vitro enzymatic digestion, and abomasal-intestinal digestion. The fruits of C. mangense and A. cochliacantha contain 21 and 12% crude protein, 47 and 56% neutral detergent fiber, 31 and 43% acid detergent fiber, and 0.9 and 6.0% condensed tannins, respectively. The fruits of C. mangense showed a higher nutritional value and a higher dry matter and crude protein degradability (p<0.05) than those of A. cochliacantha and the 1:1 mixture. The amount of protein that reaches the small intestine is higher for the 1:1, which is an indicative that its tannin concentration is enough to increase the bypass protein that can be absorbed in the small intestine.","PeriodicalId":19826,"journal":{"name":"Pesquisa Agropecuaria Brasileira","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67609691","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