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Registros recuperados: 4
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Ammonium excretion, auxin production and effects of maize inoculation with ethylenediamine-resistant mutants of Pseudomonas sp. Bragantia
Ramos,Luan da Luz; Rodrigues,Elisete Pains; Silva,Mayara Barbosa; Oliveira,Jessica Ellen; Zuluaga,Mónica Yorlady Alzate; Milani,Karina Maria Lima; Oliveira,André Luiz Martinez de.
ABSTRACT Plant growth-promoting bacteria (PGPB) comprise part of plant microbiome of biotechnological interest due to their potential to decrease the use of agrochemicals in agriculture. Among the commonly found PGPB species, the Pseudomonas genus is known for high competitiveness and efficiency in expressing growth-promotion traits. To increase the contribution of diazotrophic Pseudomonas sp. to the plant nitrogen nutrition, the strain AZM-01 was chemically mutagenized with methyl methanesulfonate (MMS), following the selection for resistance to ethylenediamine (EDA). From the 13 EDA-resistant mutant strains selected, four showed increased the ammonium excretion, with the highest value reaching up to 284% increase as compared to the wild strain, and six...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biofertilizer; Plant inoculation; Methyl methanesulphonate; Plant growth-promoting bacteria.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000300415
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Plant growth-promoting bacteria associated with nitrogen fertilization at topdressing in popcorn agronomic performance Bragantia
Spolaor,Leandro Teodoski; Gonçalves,Leandro Simões Azeredo; Santos,Odair José Andrade Pais dos; Oliveira,André Luiz Martinez de; Scapim,Carlos Alberto; Bertagna,Filipe Augusto Bengosi; Kuki,Mauricio Carlos.
ABSTRACT The use of plant growth-promoting bacteria is a promising alternative with low environmental impact to increase the efficiency of use of chemical fertilizers, ensuring high yield with better cost-effective ratio. In maize crops, several studies have demonstrated an increased yield when Azospirillum-based inoculants are used. In the case of popcorn, there are no available studies related to use of inoculation and its response on yield parameters. Thus, the aim of this study was to evaluate the field performance of popcorn when inoculated with the commercial product Masterfix L (A. brasilense Ab-V5 and A. brasilense Ab-V6) and the non-commercial inoculant UEL (A. brasilense Ab-V5 + Rhizobium sp. 53GRM1) associated with nitrogen fertilization. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Azospirillum brasilense; Rhizobium sp.; Inoculants; Grain yield.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052016000100033
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Response of micropropagated sugarcane varieties to inoculation with endophytic diazotrophic bacteria BJM
Oliveira,André Luiz Martinez de; Canuto,Erineudo de Lima; Reis,Verônica Massena; Baldani,José Ivo.
Previous studies estimated that sugarcane could obtain up to 60% of total nitrogen accumulated from BNF. Here a mixture of five endophytic diazotrophic strains was tested in a field trial, inoculated in two micropropagated sugarcane varieties and three locals, to determine the effects on commercial crop conditions. The sugarcane plantlets were inoculated in vitro, and after 17 months of growing in the field, the productivity and BNF contribution showed to be influenced by the plant genotype and soil type. The highest BNF contributions was observed in the poorest soil for both varieties. Smaller increases in productivity were observed for SP 701143 variety grown in soil with low or medium fertility. In contrast, a decrease in the stem productivity was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Endophytic bacteria inoculation; Biological nitrogen fixation; Plant growth promotion bacteria; Sugarcane.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000500020
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The influence of topdressing nitrogen on Azospirillum spp. inoculation in maize crops through meta-analysis Bragantia
Zeffa,Douglas Mariani; Fantin,Lucas Henrique; Santos,Odair José Andrade Pais dos; Oliveira,André Luiz Martinez de; Canteri,Marcelo Giovanetti; Scapim,Carlos Alberto; Gonçalves,Leandro Simões Azeredo.
ABSTRACT The Azospirillum is considered one of the most studied plant growth promoter genus. These bacteria are capable of promoting plant growth through several factors. However, the effect of Azospirillum spp. associated to nitrogen fertilization on maize grain yield has brought about controversial results. Thus, the objective of this study was to verify the influence of topdressing nitrogen on the effect of Azospirillum spp. inoculation on maize crops through meta-analysis. Data were collected from articles published in scientific journals, obtained from the Web of Science®, Scopus® and Google Scholar® databases. The bibliographic review included only articles with direct comparisons between maize yield in the presence and absence of Azospirillum spp....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays L.; Meta-regression; Plant growth-promoting bacteria.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000300493
Registros recuperados: 4
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