Acessibilidade / Reportar erro

Phytosociological assessment of weeds on Paraguaçu Paulista-SP sidewalks

A phytosociological assessment was carried out to identify weed communities occurring on the sidewalks of Paraguacu Paulista-SP, considering three possible types of weed infestation on sidewalks. Weeds were identified and quantified in all the main neighborhoods of this municipal district, being subdivided into 180 sampling points in strips positioned on the curb line of the sidewalk, the center of the sidewalk and the edge of the wall. Eleven families and 21 species were identified with the Poaceae, Asteraceae, Euphorbiaceae and Amaranthaceae families registering the highest numbers and frequencies of species in the three side walk positions. The highest importance value indices (IVI) for the species identified in the curb lineand center of the sidewalk were: Eragrotis pilosa (50.3 and 56.6), Chamaesyce prostrata (48.2 and 57.6) and Chamaesyce hirta (30.3 and 36.4); for the edge of the wall, the highest IVI were: C. prostrata (60.6), Phyllanthus tenellus (44.3) and C. hirta (36.2).

identification; infestation; public streets


Sociedade Brasileira da Ciência das Plantas Daninhas Departamento de Fitotecnia - DFT, Universidade Federal de Viçosa - UFV, 36570-000 - Viçosa-MG - Brasil, Tel./Fax::(+55 31) 3899-2611 - Viçosa - MG - Brazil
E-mail: rpdaninha@gmail.com