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Eficiência simbiótica de estirpes de rizóbios em lótus-serrano e adésmia cultivados em solo de arrozeira
| Content Provider | Semantic Scholar |
|---|---|
| Author | Tramontin, Antonio Luiz Santos, Julio César Pires Valisceski, Romano Costa, Murilo Dalla |
| Copyright Year | 2016 |
| Abstract | Resumo: Objetivou-se avaliar a eficiencia simbiotica de estirpes de rizobios na fixacao biologica de nitrogenio em Lotus uliginosus e Adesmia latifolia cultivados em solo de arrozeira. Conduziram-se dois experimentos em casa de vegetacao na Estacao Experimental de Lages. No experimento 1, L. uliginosus cv. SCS313 Serrano foi inoculado com as estirpes de rizobios EEL13702, EEL8Ce1 e EEL4284, e no experimento 2, A. latifolia foi inoculada com as estirpes de rizobios EEL1811, EEL3111 e Semia 6438. Avaliaram-se numero e biomassa seca de nodulos radiculares e biomassa seca e acumulo de nitrogenio na parte aerea. Alem disso, conduziu-se experimento no campo em solo de arroz irrigado para avaliar a eficiencia simbiotica em L. uliginosus inoculado com as mesmas estirpes bacterianas testadas em casa de vegetacao. Os resultados indicam a existencia de estirpes nativas de rizobios em solo de arrozeira do Alto Vale do Itajai com capacidade de nodular ambas as especies avaliadas. L. uliginosus demonstrou capacidade de adaptacao e potencial de producao forrageira em condicoes de solo de arrozeira. Abstract: This study aimed to assess the efficiency of biological nitrogen fixation in Lotus uliginosus and Adesmia latifolia cultivated in irrigated rice soil. Two experiments were conducted in a greenhouse at Lages Experimental Station of EPAGRI. In experiment 1, L. uliginosus cv. SCS313 Serrano was inoculated with rhizobia strains EEL13702, EEL8Ce1 and EEL4284 and in experiment 2, Adesmia latifolia was inoculated with rhizobia strains EEL1811, EEL3111 and Semia 6438. Number and dry weight of root nodules were evaluated together with dry biomass and nitrogen accumulation in plant shoots. In addition, a field experiment was conducted in an irrigated rice soil to evaluate the symbiotic efficiency in L. uliginosus inoculated with the same rhizobia strains tested in the greenhouse. The results indicate the existence of native rhizobia strains of nodular capability in irrigated rice soil in the region of Alto Vale do Itajai in both plant species evaluated. L. uliginosus showed adaptability and forage production potential in irrigated rice soil conditions. |
| Starting Page | 46 |
| Ending Page | 49 |
| Page Count | 4 |
| File Format | PDF HTM / HTML |
| Volume Number | 29 |
| Alternate Webpage(s) | http://publicacoes.epagri.sc.gov.br/index.php/RAC/article/download/58/2 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
