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Biblioteca(s): |
Embrapa Gado de Leite. |
Data corrente: |
05/02/2013 |
Data da última atualização: |
08/02/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 3 |
Autoria: |
PASSOS, L. P.; KOPP, M. M.; LEDO, F. J. da S. |
Afiliação: |
LEONIDAS PAIXAO PASSOS, CNPGL; MAURICIO MARINI KOPP, CPPSUL; FRANCISCO JOSE DA SILVA LEDO, CNPGL. |
Título: |
Performance of tetraploid alfafa genotypes as exposed to aluminum toxicity. |
Ano de publicação: |
2012 |
Fonte/Imprenta: |
Agricultural Sciences, v. 3, n. 2, p. 230-240, 2012. |
DOI: |
http://dx.doi.org/10.4236/as.2012.32027 |
Idioma: |
Inglês |
Conteúdo: |
A study was carried out to evaluate the development of 12 tetraploid alfalfa cultivars exposed to Al toxicity in nutrient solution. Newly germinated seedlings of cultivars Alfa 200, Alto, Araucana, Costera, Crioula, Esmeralda, Falcon, F-708, Rio, Romagnola, Valley Plus, and Victoria, were exposed to either 0, 4, 8 or 12 mg·L-1 Al3+. Plants were analyzed regarding root length (RL) and dry matter (RDM), aerial part length (APL), and dry matter (APDM), hypocotyl length (HypL) and dry matter (HypDM), epicotyl length (EpiL) and dry matter (EpiDM), and petiole length (PetL), and dry matter (PetDM). Results indicated that, although all genotypes exhibited detectable sensitivity to such a stress, cvs. Crioula, Victoria and Alpha-200 were tolerant to 4 mg·L-1 Al3+ toxicity. It was also concluded that Al3+ levels up to the 4 mg·L-1 will be effective for screening tetraploid alfalfa genotypes regarding this type of stress, when evaluations are made in nutrient solution. Finally, RL is the most suitable variable for conducting such evaluations, but all variables related to dry matter in the aerial part are also recommended. |
Palavras-Chave: |
Aluminio toxico; Genotipos; Solução nutriente. |
Thesagro: |
Alfafa; Seleção. |
Categoria do assunto: |
G Melhoramento Genético |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/948375/1/Performance-of-tetraploid-alfafa-genotypes-as-exposed-to-aluminum-toxicity.pdf
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Marc: |
LEADER 01772naa a2200217 a 4500 001 1948375 005 2024-02-08 008 2012 bl uuuu u00u1 u #d 024 7 $ahttp://dx.doi.org/10.4236/as.2012.32027$2DOI 100 1 $aPASSOS, L. P. 245 $aPerformance of tetraploid alfafa genotypes as exposed to aluminum toxicity.$h[electronic resource] 260 $c2012 520 $aA study was carried out to evaluate the development of 12 tetraploid alfalfa cultivars exposed to Al toxicity in nutrient solution. Newly germinated seedlings of cultivars Alfa 200, Alto, Araucana, Costera, Crioula, Esmeralda, Falcon, F-708, Rio, Romagnola, Valley Plus, and Victoria, were exposed to either 0, 4, 8 or 12 mg·L-1 Al3+. Plants were analyzed regarding root length (RL) and dry matter (RDM), aerial part length (APL), and dry matter (APDM), hypocotyl length (HypL) and dry matter (HypDM), epicotyl length (EpiL) and dry matter (EpiDM), and petiole length (PetL), and dry matter (PetDM). Results indicated that, although all genotypes exhibited detectable sensitivity to such a stress, cvs. Crioula, Victoria and Alpha-200 were tolerant to 4 mg·L-1 Al3+ toxicity. It was also concluded that Al3+ levels up to the 4 mg·L-1 will be effective for screening tetraploid alfalfa genotypes regarding this type of stress, when evaluations are made in nutrient solution. Finally, RL is the most suitable variable for conducting such evaluations, but all variables related to dry matter in the aerial part are also recommended. 650 $aAlfafa 650 $aSeleção 653 $aAluminio toxico 653 $aGenotipos 653 $aSolução nutriente 700 1 $aKOPP, M. M. 700 1 $aLEDO, F. J. da S. 773 $tAgricultural Sciences$gv. 3, n. 2, p. 230-240, 2012.
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Embrapa Gado de Leite (CNPGL) |
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