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Heberle,Elaine dos Santos; Armas,Rafael Dutra de; Heberle,Daniel Alexandre; Stürmer,Sidney Luiz; Peruch,Luiz Augusto Martins; Lovato,Paulo Emílio; Soares,Cláudio Roberto Fonsêca Sousa. |
ABSTRACT Cassava (Manihot esculenta Crantz) is a highly mycotrophic crop, and prior soil cover may affect the density of arbuscular mycorrhizal fungi (AMFs), as well as the composition of the AMFs community in the soil. The aim of this study was to evaluate the occurrence and the structure of AMFs communities in cassava grown after different cover crops, and the effect of the cover crop on mineral nutrition and cassava yield under an organic farming system. The occurrence and structure of the AMFs community was evaluated through polymerase chain reaction (PCR) and denaturing gradient gel electrophoresis (DGGE). A randomized block experimental design was used with four replications. Six different cover crop management systems before cassava were evaluated:... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Manihot esculenta; Arbuscular mycorrhizal fungi; Root symbioses. |
Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000501292 |
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Moura,Ginaini Grazielli Doin de; Armas,Rafael Dutra de; Meyer,Edenilson; Giachini,Admir José; Rossi,Márcio José; Soares,Cláudio Roberto Fonsêca Sousa. |
ABSTRACT An alternative for recovery of areas degraded by coal mining is revegetation with rapidly growing leguminous trees, which often do not establish in low fertility soils. The objective of this study was to evaluate the efficiency of native rhizobia isolated from coal mining areas in the nodulation and growth of leguminous trees. We isolated 19 strains of rhizobia from a degraded soil near Criciúma, SC, Brazil, and evaluated the nodulation and growth-promoting capacity of the inoculated isolates for bracatinga (Mimosa scabrella), maricá (M. bimucronata) and angico-vermelho (Parapiptadenia rigida). Isolates UFSC-B2, B6, B8, B9, B11 and B16 were able to nodulate bracatinga, providing average increases of 165 % in shoot dry matter, with a significant... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Environmental recovery; Revegetation; Diazotrophs; Bioremediation. |
Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100402 |
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