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metadata.artigo.dc.title: Physiological quality of hybrid maize seeds through respiratory and enzymatic activities
metadata.artigo.dc.creator: Santos, Heloisa Oliveira dos
Von Pinho, Iolanda Vilela
Von Pinho, Édila Vilela de Resende
Pires, Raquel Maria de Oliveira
Silva, Valkíria Fabiana da
Carvalho, Maria Laene Moreira de
Oliveira, Roseane Maria Evangelista
metadata.artigo.dc.subject: Respiration
Enzyme expression
metadata.artigo.dc.publisher: Academic Journals May-2016
metadata.artigo.dc.identifier.citation: SANTOS, H. O. dos et al. Physiological quality of hybrid maize seeds through respiratory and enzymatic activities. African Journal of Agricultural Research, [S.l.], v. 11, n. 20, p. 1879-1886, May 2016.
metadata.artigo.dc.description.abstract: With the increased demand for high quality maize seeds, the market absorbs innovations that add speed and reliability in the tests that enable differentiation of potential performance of seed lots. This study aims to evaluate the combination of the physiological tests with the expression of enzymes of respiratory route for differences in vigor levels in lots of hybrid seed corn. The percentage of germination, germination first count, emergence on tray, index of emergency speed, accelerated aging and respiration rate were evaluated by Pettenkoffer and Titulation method. Furthermore, the expression of alpha amylase, alcohol dehydrogenase, malate dehydrogenase and pyruvate decarboxylase was analyzed. With the results, it is determined that the vigor tests analyzed, together with the tests of enzymatic expressions of respiratory route were efficient to detect different levels of force in hybrid seed corn. Lot 1 had higher physiological quality while lot 2 had the lowest vigor compared to the other lots. With the vigor tests and expression of enzymes, it was possible to differentiate the quality of the seeds and therefore it can be recommended as reliable tests for defining the quality of seed lots.
metadata.artigo.dc.language: en_US
Appears in Collections:DAG - Artigos publicados em periódicos

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