Bragantia最新文献_第9页

Biocontrol of rice sheath blight with microorganisms obtained in rice cultivated soils 水稻栽培土壤微生物对水稻纹枯病的生物防治

IF 1.2 4区农林科学

Bragantia Pub Date : 2021-01-01 DOI: 10.1590/1678-4499.20200356

Estiben Caviedes Zambrano, A. Parra, Á. Ortiz

{"title":"Biocontrol of rice sheath blight with microorganisms obtained in rice cultivated soils","authors":"Estiben Caviedes Zambrano, A. Parra, Á. Ortiz","doi":"10.1590/1678-4499.20200356","DOIUrl":"https://doi.org/10.1590/1678-4499.20200356","url":null,"abstract":"Actinobacteria of the genus Streptomyces are part of the soil microbiota from rice-growing areas and along with other microorganisms, such as Trichoderma spp., combine to act as natural enemies against the destructive soil-borne pathogen Rhizoctonia solani, causal agent of rice sheath blight disease. In this study, seven actinobacteria of the genus Streptomyces and three fungi of the genera Trichoderma and Purpureocillium were isolated from soils cultivated with rice using the serial dilution method. Streptomyces spp. M2A2 was selected for its ability to significantly reduce the in vitro growth of R. solani by 52% after 96 h by antibiosis in dual culture, while in the control treatment the mycelial growth was 100%. Furthermore, biocontrol efficacy of treated plants of the susceptible cultivar Fedearroz 68 with actinobacteria was confirmed and the onset of symptoms were delayed up to 14 days, compared to the control treatment. Rice plants treated with Streptomyces spp. M2A2 showed lesions of R. solani reaching 0.7% of the plant height, the effectiveness of this treatment was similar to the difenoconazole treatment, whereas in the control treatment, the lesions covered 34% of the plant height. When compared to the antagonist fungus Trichoderma spp. M2H1, Streptomyces spp. M2A2 presented a better performance of biological control. The results clearly demonstrated that Streptomyces spp. M2A2 isolate from soils of rice growing areas has biocontrol efficiency against R. solani and therefore can be a promising biocontrol agent.","PeriodicalId":9260,"journal":{"name":"Bragantia","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67473063","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: 3

A simple membrane-based approach for assessing the diffusion kinetics of mineral foliar fertilizers 一种基于膜的评估叶面矿物肥料扩散动力学的简单方法

IF 1.2 4区农林科学

Bragantia Pub Date : 2021-01-01 DOI: 10.1590/1678-4499.20210044

G. Montanha, M. Dias, H. Carvalho

引用次数: 0

Trellis systems and rootstocks affect the quality and antioxidant potential of ‘BRS Cora’ grapes in rainy seasons under semiarid conditions 在半干旱的雨季条件下，格架系统和砧木对‘BRS Cora’葡萄的品质和抗氧化潜力有影响

IF 1.2 4区农林科学

Bragantia Pub Date : 2021-01-01 DOI: 10.1590/1678-4499.20200201

R. R. Costa, T. D. O. Ferreira, M. Lima

{"title":"Trellis systems and rootstocks affect the quality and antioxidant potential of ‘BRS Cora’ grapes in rainy seasons under semiarid conditions","authors":"R. R. Costa, T. D. O. Ferreira, M. Lima","doi":"10.1590/1678-4499.20200201","DOIUrl":"https://doi.org/10.1590/1678-4499.20200201","url":null,"abstract":"The quality and phenolic compound composition might be affected by production system due to microclimate around the bunches and sunlight interception provided by vegetative canopy architecture and environmental conditions. The aim of this study was to characterize the quality and antioxidant potential of ?BRS Cora? grapes with different trellis systems and rootstocks in rainy seasons under tropical conditions. Three trellis systems and two rootstocks were studied in production cycles during the first halves of 2017 and 2018, using a randomized-block experimental design. Interactions between the trellis systems, rootstocks and cycles differentially affect the fruit quality. The association between vertical shoot positioning or an overhead trellis with ?IAC 766? induced higher polyphenol compound contents. In turn, the trellis systems overhead trellis and lyre provided greater stability for the berry weight, soluble solids, total soluble sugar contents, yellow flavonoids, total extractable polyphenol compounds or antioxidant activity in both production cycles. The results of this study inferred that the grape quality and phenolic compound composition were not only affected by some specific climatic factors but also by the trellis system, rootstock, and the interaction between the three factors.","PeriodicalId":9260,"journal":{"name":"Bragantia","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67472279","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: 2

The isolated effect of low oxygen and high carbon dioxide on yerba mate quality keeping 低氧高二氧化碳对马黛茶品质保鲜的孤立效应

IF 1.2 4区农林科学

Bragantia Pub Date : 2021-01-01 DOI: 10.1590/1678-4499.20200273

F. Thewes, Magno Roberto Pasquetti Berghetti, Erani Eliseu Schultz, Vagner Ludwig, Sarah Lemos Cogo Prestes, Lucas Mallmann Wendt, Flavio Roberto Thewes, A. Brackmann

引用次数: 0

Identification of pollinizers for apple ‘SCS426 Venice 苹果SCS426威尼斯传粉媒介的鉴定

IF 1.2 4区农林科学

Bragantia Pub Date : 2021-01-01 DOI: 10.1590/1678-4499.20200129

T. L. Brancher, M. C. Hawerroth, Marcus Vinícius Kvitschal, A. F. Guidolin, F. Denardi, M. Couto, C. Carlesso

{"title":"Identification of pollinizers for apple ‘SCS426 Venice","authors":"T. L. Brancher, M. C. Hawerroth, Marcus Vinícius Kvitschal, A. F. Guidolin, F. Denardi, M. Couto, C. Carlesso","doi":"10.1590/1678-4499.20200129","DOIUrl":"https://doi.org/10.1590/1678-4499.20200129","url":null,"abstract":"Apple orchards require the presence of a different genotype to pollinate the fruit producing cultivar. This is due to the process of gametophytic self-incompatibility present in most species and cultivars of the genus Malus. The fruit producing cultivar and the pollinizer must be genetically compatible to ensure fruit set and symmetrical and adequate fruit formation. The aim of this work was to evaluate five potential pollinizers for the new apple cultivar SCS426 Venice by genotyping the self-incompatibility locus (S-locus) and by controlled pollination in the field. The S-locus was screened using molecular markers and the fertilization capacity was evaluated by monitoring the fruit set after artificial pollination. Three genotypes were identified as semi-compatible (selection 135/140, cultivar SCS433 Felix 3 and SCS425 Luiza) and two as fully compatible (‘SCS431 Felix 1’ and ‘SCS434 Felix 4’) with ‘SCS426 Venice’. Regardless of the level of compatibility, all genotypes tested are efficient for the fertilization of ‘SCS426 Venice’ flowers and can be used as pollinizers in commercial orchards of this cultivar.","PeriodicalId":9260,"journal":{"name":"Bragantia","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67472508","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

Could the umbel order selection and GA3 treatment improve seed germination in Amazon chicory species?Could the umbel order selection and GA3 treatment improve seed germination in Amazon chicory species? 伞形序选择和GA3处理能提高菊苣种子萌发率吗?伞形序选择和GA3处理能提高菊苣种子萌发率吗?

IF 1.2 4区农林科学

Bragantia Pub Date : 2021-01-01 DOI: 10.1590/1678-4499.20200404

Larissa da Fonseca Moraes, Francisco Laurimar do Nascimento Andrade, R. Gomes, L. D. S. Santos

{"title":"Could the umbel order selection and GA3 treatment improve seed germination in Amazon chicory species?Could the umbel order selection and GA3 treatment improve seed germination in Amazon chicory species?","authors":"Larissa da Fonseca Moraes, Francisco Laurimar do Nascimento Andrade, R. Gomes, L. D. S. Santos","doi":"10.1590/1678-4499.20200404","DOIUrl":"https://doi.org/10.1590/1678-4499.20200404","url":null,"abstract":"This study aimed to estimate the production of seeds per umbel and to assess both the effect of gibberellic acid (GA3) and umbel order on seed germination in Amazon chicory species. The experiment was conducted in two steps. Firstly, traits related to seed production were evaluated. Afterward, a germination test was carried out, and the following parameters were assessed: germination speed index (GSI), average germination time (AGT), germination percentage (%G), percentage of abnormal seedlings (%AS), and percentage of non-germinated seeds (%NGS). Remarkably, there was strong interaction between the analysed factors. The highest production of seeds per plant was observed in the treatment containing the blend of seeds from different umbels (1.41 g·plant-1), in which the number of umbels by order and the total number of seeds per plant were the major traits related to the improved yield. The application of GA3 at 200 mg·dm-3 increased %G in second-order seeds. Regardless of GA3 application, seeds from secondary umbels showed shorter AGT by up to two days, while no difference in GSI was observed. Collectively, these results offer novel and timely information on the seed germination behavior in Amazon chicory, revealing practical advice of utmost importance for local producers.","PeriodicalId":9260,"journal":{"name":"Bragantia","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67473019","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

Recurrent selection for high iron and zinc concentrations in black bean grain 黑豆籽粒高铁、高锌的循环选择

IF 1.2 4区农林科学

Bragantia Pub Date : 2021-01-01 DOI: 10.1590/1678-4499.20200489

Lara Rodrigues de Queiroz, L. L. Rodrigues, Saulo Muniz Martins, T. Souza, L. C. Melo, H. S. Pereira

{"title":"Recurrent selection for high iron and zinc concentrations in black bean grain","authors":"Lara Rodrigues de Queiroz, L. L. Rodrigues, Saulo Muniz Martins, T. Souza, L. C. Melo, H. S. Pereira","doi":"10.1590/1678-4499.20200489","DOIUrl":"https://doi.org/10.1590/1678-4499.20200489","url":null,"abstract":"The iron concentration (FeC) and zinc concentration (ZnC) in common bean grain are quantitative traits, and appropriate breeding techniques are required to achieve genetic gain. The aim of this study was to obtain a recurrent selection population of black bean to increase the FeC and ZnC in the grain and to select the superior progenies for formation of the next cycle and obtain lines. The base population was formed by crosses among ten parents. A total of 351 progenies were obtained, and, after two generations of selection, the 27 best progenies were evaluated in two field trials for FeC, ZnC, 100 seed weight and yield. Analyses of variance were carried out and genetic parameters were estimated. The heritability estimates ranged from 59 to 94% for the four traits. The estimates of expected gain from direct selection for each trait (3 to 21%) and simultaneous selection (1 to 4%) indicate success from selection. The eight progenies, selected based on simultaneous selection, have superior mean values, including to those of ‘BRS Supremo’ (10% for FeC, 8% for ZnC, 5% for 100 seed weight and 3.8% for yield), the Brazilian black bean cultivar with the highest FeC and ZnC. The recurrent selection population shows high genetic variability and potential for obtaining lines superior to the cultivars currently on the market, allying high agronomic performance and high FeC and ZnC in the grain. Furthermore, this population shows potential for generating a new recurrent selection cycle, from recombination of the eight superior progenies.","PeriodicalId":9260,"journal":{"name":"Bragantia","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67473434","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

Leaf proline accumulation and fruit yield of ‘Pera’ sweet orange trees under natural water stress 自然水分胁迫下Pera甜橙叶片脯氨酸积累与果实产量

IF 1.2 4区农林科学

Bragantia Pub Date : 2021-01-01 DOI: 10.1590/1678-4499.20200349

L. M. D. Carvalho, S. B. D. Araújo, H. D. Carvalho, E. A. Girardi, W. S. Soares Filho

{"title":"Leaf proline accumulation and fruit yield of ‘Pera’ sweet orange trees under natural water stress","authors":"L. M. D. Carvalho, S. B. D. Araújo, H. D. Carvalho, E. A. Girardi, W. S. Soares Filho","doi":"10.1590/1678-4499.20200349","DOIUrl":"https://doi.org/10.1590/1678-4499.20200349","url":null,"abstract":"The water deficit is one of the main limiting factors to the yield of sweet oranges. The present study aimed to determine alternative rootstocks to ‘Rangpur’ lime for ‘Pera’ sweet oranges grown on tropical hardsetting soils with greater potential tolerance to water deficit. Six citrus scion/rootstock combinations were grown during eight years in an orchard established in Sergipe, Brazil. The tree height, number of fruits per plant, cumulated fruit yield, leaf proline content and survival rate of trees were evaluated between 6th and 8th year after planting. Greater rate of tree loss occurred among the sweet orange onto ‘Orlando’ tangelo, which also induced the lowest cumulative fruit yield. After prolonged water deficit, moderate to high proline content was found in trees grafted on Sunki of Florida mandarin × C13 citrange – 012° (TSKFL × CTC13-012), ‘Orlando’ tangelo, ‘Indio’ and ‘Riverside’ citrandarin. Conversely, after a short water deficit during the wet season, trees on ‘San Diego’ citrandarin and Rangpur lime clone of Centro Nacional de Pesquisa Mandioca e Fruticultura – CNPMF 03 ‘Rangpur’ lime showed higher proline content. Trees onto TSKFL × CTC13-012 and ‘Indio’ also induced the greatest accumulated fruit yield at the 8th year after planting. It is assumed that ‘San Diego’ and CNPMF 03 ‘Rangpur’ induce response more quickly to water deficit, whereas TSKFL × CTC13-012 and ‘Indio’ are less susceptible to prolonged deficit. Therefore, trees on ‘San Diego’ and Indio citrandarin, CNPMF-03 ‘Rangpur’ lime, TSKFL × CTC13-012 hybrid present greater potential to tolerate water deficit and produce more fruits on the hardsetting soils of the coastal tablelands of the Brazilian Northeast.","PeriodicalId":9260,"journal":{"name":"Bragantia","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67472528","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: 3

Coffee waste as an eco-friendly and low-cost alternative for biochar production impacts on sandy soil chemical attributes and microbial gene abundance 咖啡废弃物作为一种环保、低成本的生物炭替代品对沙质土壤化学属性和微生物基因丰度的影响

IF 1.2 4区农林科学

Bragantia Pub Date : 2021-01-01 DOI: 10.1590/1678-4499.20200459

Cíntia Caroline Gouveia da Silva, É. Medeiros, G. Fracetto, F. Fracetto, A. P. Martins Filho, J. R. D. Lima, G. P. Duda, D. P. Costa, M. A. Lira Junior, C. Hammecker

{"title":"Coffee waste as an eco-friendly and low-cost alternative for biochar production impacts on sandy soil chemical attributes and microbial gene abundance","authors":"Cíntia Caroline Gouveia da Silva, É. Medeiros, G. Fracetto, F. Fracetto, A. P. Martins Filho, J. R. D. Lima, G. P. Duda, D. P. Costa, M. A. Lira Junior, C. Hammecker","doi":"10.1590/1678-4499.20200459","DOIUrl":"https://doi.org/10.1590/1678-4499.20200459","url":null,"abstract":"Biochar is a material produced by the pyrolysis of agro-industrial waste, which has become one of the most promising management tools to improve soil quality. The aim was to determine the effects of incorporating biochar from different coffee wastes in sandy soil, cropped with maize, on soil chemical and microbial attributes. The experiment followed a factorial design 2 × 3 + 1 with two types of biochar, including coffee ground (CG) or coffee husk (CH) in 3 doses (4, 8, and 16 t·ha-1) and a control fertilized solely with bovine manure (3 t·ha-1). The variables analyzed were soil organic carbon, chemical attributes, microbial biomass (C, N and P), soil basal respiration and microbial gene abundance (16S rRNA, 18S rRNA and nifH gene). Most chemical attributes were strongly increased by CH application, while CG at 8 t·ha-1 increased the soil C:N ratio (3.5 times), P (2.1 times) and K+ (7.9 times) and at 4 t·ha-1 increased the C content, microbial biomass C and N (3, 2.1 and 1.6 times, respectively). The application of CG biochar at 16 t·ha-1 showed trend to increase the abundance of bacteria, fungi and diazotrophic genes (11, 10 and 2%, respectively). Contribution of both coffee biochar types, but mainly CH, was more effective than the soil that received organic manure alone. Biochar from coffee wastes is a promising tool to improve sandy soil quality.","PeriodicalId":9260,"journal":{"name":"Bragantia","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67472972","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: 8

Selection of BC1F3 populations of Santa Cruz type dwarf tomato plant by computational intelligence techniques 基于计算智能技术的圣克鲁斯型矮番茄BC1F3群体选择

IF 1.2 4区农林科学

Bragantia Pub Date : 2021-01-01 DOI: 10.1590/1678-4499.20210046

D. Gomes, G. Maciel, A. Siquieroli, C. Oliveira, R. R. Finzi, D. J. Marques

{"title":"Selection of BC1F3 populations of Santa Cruz type dwarf tomato plant by computational intelligence techniques","authors":"D. Gomes, G. Maciel, A. Siquieroli, C. Oliveira, R. R. Finzi, D. J. Marques","doi":"10.1590/1678-4499.20210046","DOIUrl":"https://doi.org/10.1590/1678-4499.20210046","url":null,"abstract":"The aim of this study was to estimate genetic divergence and select BC1F3 populations of dwarf tomato plant within the Santa Cruz segment by computational intelligence techniques. The experiment was conducted in a greenhouse in the Vegetable Crop Experimental Station of the Universidade Federal de Uberlândia (UFU), Monte Carmelo, MG, Brazil. A randomized block experimental design was used with 17 treatments and four replications. The genetic material evaluated comprised thirteen dwarf tomato plant populations obtained by a backcross and two self-fertilizations, plus both parents (recurrent and donor), and two commercial check varieties. The traits evaluated were mean fruit weight (MFW), soluble solids content (SSC), fruit diameter (FD), fruit length (FL), fruit shape (FS), pulp thickness (PT), number of locules (NL), distance between internodes, and acylsugar, β-carotene, and lycopene content. The data were analyzed by means testing, and genetic divergence was measured using Mahalanobis generalized distance by the unweighted pair group method with arithmetic mean (UPGMA) and through computational intelligence using Kohonen self-organizing maps (SOM). Genetic dissimilarity in relation to the donor parent could be confirmed through both methodologies. However, the SOM was able to detect differences and organize the similarities among the populations in a more consistent manner, resulting in a larger number of groups. In addition, the computational intelligence techniques allow the weight of each variable in formation of the groups to be ascertained. Among the BC1F3 populations, UFU-SC#3 and UFU-SC#5 stood out for agronomic traits, and UFU-SC#10 and UFU-SC#11 stood out for quality parameters.","PeriodicalId":9260,"journal":{"name":"Bragantia","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67474058","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: 2