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| Registros recuperados: 60 | |
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| LUCA, M. J. de; HUNGRIA, M.. |
| Para manter a sustentabilidade dos sistemas agrícolas é importante aperfeiçoar o uso dos recursos naturais. Cerca de 87% das vagens de soja abortam antes de alcançar 2 cm de comprimento. Entretanto, maior luminosidade na parte inferior do dossel resultam num aumento na retenção de vagens e na produtividade da soja. A inoculação com Bradyrhizobium permite altos rendimentos da soja, dispensando o uso de N mineral, mas os resultados podem variar com a estirpe empregada. A densidade de plantio por sua vez modifica a absorção de nutrientes. Assim, o objetivo deste trabalho foi estudar o efeito combinado da diminuição na densidade (plantas/m2) e inoculação com duas estirpes de B. japonicum no rendimento, nodulação e concentração de nutrientes em folhas de soja.... |
| Tipo: Parte de livro |
Palavras-chave: Soja; Inoculação; Nodulação; Fixação de nitrogênio; Soybeans; Nodulation; Nitrogen fixation; Inoculation methods. |
| Ano: 2012 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/934697 |
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| Gomaa,Nasr Hassan; Hassan,Mahmoud Omar; Fahmy,Gamal Mohammad; González,Luís; Hammouda,Ola; Atteya,Atteya Mostafa. |
| Annual sowthistle (Sonchus oleraceus) has been reported to produce allelopathic effects. Two greenhouse experiments were conducted to estimate the allelopathic potential of both plant residue and root exudates of S. oleraceus on flavonoid composition and nodulation in a leguminous crop, Trifolium alexandrinum, and in two leguminous weeds, Melilotus indicus and T. resupinatum. The results of high performance liquid chromatography-mass spectrometry (HPLC-MS/MS) showed that all three legumes contained six flavonoid aglycones: apigenin, daidzein, kaempferol, luteolin, myricetin and quercetin; and seven flavonoid glycosides: daidzin, genistin, hesperidin, hyperoside, kaempferol-7-O-glucoside, naringin and rutin. In general, both plant residue and root exudates... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Allelopathy; Flavonoids; Legumes; Nodulation; Sonchus oleraceus. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000400553 |
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| Delić,Duica; Stajković,Olivera; Rasulić,Nataa; Kuzmanović,Djordje; Joić,Dragana; Miličić,Bogić. |
| In pot experiment, one isolate Knj from a Serbian soil, four strains of Bradyrhizobium japonicum and three strains of Bradyrhizobium spp. were examined for the effect on adzuki bean nodulation and effectiveness in symbiotic N2 fixation. All the tested strains produced root nodules in adzuki bean. Strains of B. japonicum showed high potential of N2 fixation, particularly 525 and 542. B. japonicum strains resulted 65-71% shoot dry weight and 99-138% total N content of uninoculated control with full N content (100%). No significant difference was found between the plants inoculated with Bradyrhizobium spp. strains and uninoculated control plants without N (40-42 and 42% shoot dry weight, respectively), which indicated symbiotic N2 fixation inactivity of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bradyrhizobium; Adzuki bean; Nodulation; Symbiotic N fixation. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000200007 |
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| Simões-Araújo,Jean Luiz; Leite,Jakson; Marie Rouws,Luc Felicianus; Passos,Samuel Ribeiro; Xavier,Gustavo Ribeiro; Rumjanek,Norma Gouvêa; Zilli,Jerri Édson. |
| Abstract The strain BR 3262 was isolated from nodule of cowpea (Vigna unguiculata L. Walp) growing in soil of the Atlantic Forest area in Brazil and it is reported as an efficient nitrogen fixing bacterium associated to cowpea. Firstly, this strain was assigned as Bradyrhizobium elkanii, however, recently a more detailed genetic and molecular characterization has indicated it could be a Bradyrhizobium pachyrhizi species. We report here the draft genome sequence of B. pachyrhizi strain BR 3262, an elite bacterium used as inoculant for cowpea. The whole genome with 116 scaffolds, 8,965,178 bp and 63.8% of C+G content for BR 3262 was obtained using Illumina MiSeq sequencing technology. Annotation was added by the RAST prokaryotic genome annotation service and... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Atlantic forest area; Biological nitrogen fixation; Next generation sequencing; Nodulation. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000400783 |
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| Ruíz-Valdiviezo,Víctor Manuel; Canseco,Lucía María Cristina Ventura; Suárez,Luis Antonio Castillo; Gutiérrez-Miceli,Federico Antonio; Dendooven,Luc; Rincón-Rosales,Reiner. |
| Native rhizobia are ideal for use as commercial legume inoculants. The characteristics of the carrier used to store the inoculants are important for the survival and symbiotic potential of the rhizobia. The objective of this study was to investigate the effects of peat (PEAT), perlite sugarcane bagasse (PSB), carboxymethyl cellulose plus starch (CMCS), and yeast extract mannitol supplemented with mannitol (YEMM) on the survival, nodulation potential and N2 fixation capacity of the native strains Sinorhizobium mexicanum ITTG R7T and Rhizobium calliandrae LBP2-1T and of the reference strain Rhizobium etli CFN42T. A factorial design (4 × 3) with four repetitions was used to determine the symbiotic potential of the rhizobial strains. The survival of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rhizobia; Inoculants; Nodulation; Nitrogen fixation; Carrier. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000300735 |
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| Iqbal,Muhammad Asif; Khalid,Muhammad; Shahzad,Sher Muhammad; Ahmad,Maqshoof; Soleman,Nawaf; Akhtar,Naeem. |
| Maintenance of high bacterial population in the rhizosphere improves the efficiency of these organisms. This high bacterial population can be maintained by the application of enriched compost which supports their growth and activities. Thus integrated use of Rhizobium, plant growth promoting rhizobacteria (PGPR) containing 1-aminocyclopropane-1-carboxylate deaminase (ACC-deaminase) and P-enriched compost (PEC) could be highly effective for promoting growth, nodulation, and yield of lentil (Lens culinaris Medik.). A field study was conducted to evaluate the potential of Rhizobium, PGPR containing ACC-deaminase and PEC for promoting growth of lentil. For this study, the soil type was sandy clay loam soil having pH 7.6; EC (electrical conductivity) 2.8 dS... |
| Tipo: Journal article |
Palavras-chave: Co-inoculation; Biological N fixation; Rhizobium; ACC-deaminase; P-enriched compost; Nodulation; Yield. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000100017 |
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| Marchesan,Enio; Tonetto,Felipe; Teló,Gustavo Mack; Coelho,Lucas Lopes; Aramburu,Bruno Behenck; Trivisiol,Vinicius Severo. |
| ABSTRACT: This study investigated the effects of soil management systems, tillage, and application of gypsum agricultural to soil, on soybean development in lowland areas. The experiment was carried out on an Alfisol in a randomized complete block design in a factorial arrangement. The two soil tillage practices were without deep tillage and with deep tillage. Gypsum treatments were no gypsum application, 500kg of gypsum ha-1, 1000kg of gypsum ha-1, and 1500kg of gypsum ha-1. Deep tillage resulted in less soil resistance to root penetration during ryegrass cultivation during the soybean offseason, 11 months after applying the management treatments, resulting in higher dry mass of ryegrass in the offseason and higher soybean yield in the following year. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max L.; Deep tillage; Nodulation; Grain yield.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001100201 |
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| Amarante,Cassandro Vidal Talamini do; Canci,Paulo Cesar. |
| The effect of metolachlior [2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-l-methylethyl) acetamide] at rates of 0.0, 1.5, 3.0, 4.5, and 6.0kg a.i./ha on the growth and nodulation of soybean cv. BR-4 cultivated on two substrata (soil and soil + sand) and inoculated with Bradyrhizobium japonicum (Kirchnea-1896) Jordan 1982, 137 (Denotes that this name has been validly published in the oficial publicadon, Intemational Joumal of Systematic Bacteriology), was studied under greenhouse conditions at Lages, SC, Brazil, in 1992-93. The experimental design was completely randomized with four replicates. The experimental unit was a container with two plants. Fifty-two days after the emergence (at R1 stage - beginning of flowering) the plants were harvested and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Metolachlor; Glycine max (L.) Merril; Growth; Nodulation. |
| Ano: 1995 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781995000300001 |
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| Vidal Fernández, Judith Estela. |
| Este trabajo evaluó la respuesta de la simbiosis tripartita Rhizobium-leguminosa-micorriza arbuscular en presencia de vanadio (V) y níquel (Ni). El trabajo se dividió en dos fases experimentales; la primera fase estudió el comportamiento de la simbiosis Rhizobium tropici-Phaseolus vulgaris ante concentraciones de V o Ni (0, 25, 50, 75, 100 y 120 mg L-1) y su efecto en el contenido elemental en nódulos, en un sistema de bolsa de crecimiento bajo condiciones controladas (25°C, 70% HR y 12h de fotoperiodo) durante 30 días. En las plantas con V, la nodulación inició al cuarto día después de la inoculación y tuvo un máximo de 40 nódulos por planta en el testigo y 6 nódulos en las concentraciones de 50 y 100 mg L-1. La mayor actividad nitrogenasa (AN) se... |
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Palavras-chave: Nodulación; Metales; Fitorremediación; Simbiosis; Phaseolus; Rhizophagus; Nodulation; Metals; Phytorremediation; Symbiosis; Edafología; Maestría. |
| Ano: 2012 |
URL: http://hdl.handle.net/10521/753 |
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| RINCÓN-ROSALES,REINER; RUÍZ-VALDIVIEZO,VÍCTOR M; MONTES-MOLINA,JOAQUÍN A; GUTIÉRREZ-MICELI,FEDERICO A; DENDOOVEN,LUC. |
| The tropical legume Acaciella angustissima inoculated with or without Sinorhizobium mexicanum ITTG R7T strain was cultivated in an aluminium (Al) spiked soil to study its tolerance towards this metal. Seedlings of A. angustissima were grown in soil with 0, 2, 4 or 6 mg Al kg-1. The effect of Al and inoculation on growth, nodulation, and nitrogen and tannins content in the plants was monitored. Height and total and dry root weight of plantlets decreased significantly when soil was spiked with Al, but increased when inoculated. Al decreased the number of nodules. Inoculum increased total N and tannin content of the plantlets. It was found that Al reduced the growth of the tropical leguminous N2-fixing shrub A. angustissima, while inoculation with S.... |
| Tipo: Journal article |
Palavras-chave: Aluminium tolerance; Plant growth; Nodulation; Nitrogen and tannins content; Sinorhizobium mexicanum ITTG R7T; Soil. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432011000200009 |
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| Registros recuperados: 60 | |
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