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Provedor de dados:  Acta Botanica
País:  Brazil
Título:  Temporal expression of the sor1 gene and inhibitory effects of Sorghum bicolor L. Moench on three weed species
Autores:  Santos,Roseane Cavalcanti dos
Ferraz,Gabriela de Morais Guerra
Albuquerque,Manoel Bandeira de
Lima,Liziane Maria de
Melo Filho,Péricles de Albuquerque
Ramos,Alessandra de Rezende
Data:  2014-09-01
Ano:  2014
Palavras-chave:  Allelopathy
Semiquantitative PCR
Sorgoleone
Weeds
Resumo:  The temporal expression of gene sor1 and the inhibitory effect of Sorghum bicolor L. Moench against weeds were studied by semiquantitative polymerase chain reaction and intercropping management, respectively. To quantify sor1 expression, seeds were sown in pots and RNA was collected from the roots at 5, 10, 15, 20 and 30 days after emergence (DAE). In the inhibition assay, cotton and three weeds were evaluated during single cropping and during intercropping with S. bicolor. The assay was completely randomized, with eight replications. We found early expression of sor1 in most S. bicolor accessions by 5 DAE, and a gradual reduction thereafter. Only one of the accessions showed sor1 expression up to 30 DAE. In the inhibition assay, the most significant effects were related to the dry matter production (shoots and roots) of the weeds Cenchrus echinatus and Cynodon dactylon. The intercropping of cotton and S. bicolor had no apparent deleterious effects.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Identificador:  http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062014000300008
Editor:  Sociedade Botânica do Brasil
Relação:  10.1590/0102-33062014abb3238
Formato:  text/html
Fonte:  Acta Botanica Brasilica v.28 n.3 2014
Direitos:  info:eu-repo/semantics/openAccess
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