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| Mattiello,Edson Marcio; Ruiz,Hugo Alberto; Silva,Ivo Ribeiro da; Sarkis,Jorge Eduardo Souza; Neves,Júlio César Lima; Pucci,Murilo Marques. |
| Boron deficiency causes large productivity losses in eucalypt stands in extensive areas of the Brazilian Cerrado region, thus understanding B mobility is a key step in selecting genetic materials that will better withstand B limitation. Thus, in this study B mobility was evaluated in two eucalypt clones (68 and 129), under B sufficiency or B deficiency, after foliar application of the 10B isotope tracer to a single mature leaf. Samples of young tissue, mature leaves and roots were collected 0, 1, 5, 12 and 17 days after 10B application. The 10B:11B isotope ratio was determined by HR-ICP-MS. Samples of leaves and xylem sap were collected for the determination of soluble sugars and polyalcohols by ion chromatography. Boron was translocated within eucalypt.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: B translocation; Nutritional deficiency; Boron isotope; 10B:11B ratio. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832009000600018 |
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