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Avaliação da Fitotoxidez de Tecoma stans (L.) Kunth

Authors: Cipriani, Franciane Auxiliadora; Kaplan, Maria Auxiliadora Coelho; Isaias, Rosy Mary dos Santos; Soares, Geraldo Luiz Gonçalves;

Avaliação da Fitotoxidez de Tecoma stans (L.) Kunth

Abstract

Tecoma stans foi introduzida no Brasil para fins ornamentais e ocorre tanto cultivada quanto subespontânea. Objetivando avaliar seu potencial alelopático, foi testado o efeito do extrato aquoso de suas folhas sobre a germinação e o desenvolvimento radicial de Lactuca sativa L. (alface), Handroanthus ochraceus (Cham.) Mattos (ipê) e Medicago sativa L. (alfafa). O extrato causou uma forte inibição na germinação das sementes de alface. O desenvolvimento radicial de alface e alfafa foi reduzido em 75 e 30%, respectivamente. Não foi observado efeito do extrato sobre a germinação ou o desenvolvimento radicial do ipê. Todas as espécies tiveram a velocidade de germinação reduzida. Observaram-se alterações micromorfológicas no ápice radicial das plântulas de alface.

Keywords

potencial alelopático, germination, bignoniaceae, allelopathic potential, germinação, Forestry, SD1-669.5

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    influence
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Average
Average
Average
Green
gold