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metadata.artigo.dc.title: Abnormalities induced by agricultural pesticides in the microsporogenesis of olive tree (Olea europaea L.) cultivars
metadata.artigo.dc.creator: Zambon, Carolina Ruiz
Techio, Vania Helena
Silva, Luiz Fernando de Oliveira da
Oliveira, Adelson Francisco de
Pio, Rafael
metadata.artigo.dc.subject: Olea europaea L.
Pollen viability
Meiotic abnormalities
Cytogenetic analysis
metadata.artigo.dc.publisher: Taylor & Francis 17-May-2018
metadata.artigo.dc.identifier.citation: ZAMBON, C. R. et al. Abnormalities induced by agricultural pesticides in the microsporogenesis of olive tree (Olea europaea L.) cultivars. Plant Biosystems, [S.l.], v. 153, n. 1, p. 68-76, 2018. DOI: 10.1080/11263504.2018.1461698.
metadata.artigo.dc.description.abstract: The study evaluated the microsporogenesis of olive trees subjected to different agricultural pesticide applications during flowering. Inflorescences of cultivars Arbequina and MGS GRAP541 were subjected to agricultural pesticides: mineral oil, neem oil, dimethoate and deltamethrin. The floral buds were fixed in Carnoy for the microsporogenesis analysis and in Karnovsky for scanning electron microscopy. The slides were prepared by squash technique and staining with propionic carmine. The pollen viability was determined by Alexander’s stain and in vitro germination. Results show that the quantification of abnormalities in meiosis in the two cultivars caused significant effect among the treatments, being that all differed statistically from the control group. Both methods showed a higher percentage of viable pollens in the control treatment and lower percentage of viability with the agricultural pesticides. The method of pollen viability by staining presented the highest averages of viable pollens, but when compared together, both methods presented a strongly related positive linear correlation. It was concluded that the used chemical products increased the percentage of chromosomal abnormalities during microsporogenesis, which interfered in the pollen viability of the two analyzed cultivars. The product deltamethrin caused the strongest effect on meiosis and on pollen viability.
metadata.artigo.dc.language: en_US
Appears in Collections:DBI - Artigos publicados em periódicos

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