Title:	Allelopathy of weeds on the growth of vegetables.
Authors:	REZENDES, I. BASEGGIO, E. R. GALON, L. BRANDLER, D. FORTE, C. T. ASPIAZÚ, I. FRANCESCHETTI, M. B. SILVA, A. F. da
Affiliation:	Ines Rezendes, Universidade Federal de Fronteira Sul; Ediane Roncaglio Baseggio, Universidade Federal de Fronteira Sul; Leandro Galon, Universidade Federal de Fronteira Sul; Daiani Brandler, Universidade Federal de Fronteira Sul; César Tiago Forte, Universidade Federal de Fronteira Sul; Ignacio Aspiazú, Universidade Estadual de Montes Claros; Milena Barretta Franceschetti, Universidade Federal de Fronteira Sul; ALEXANDRE FERREIRA DA SILVA, CNPMS.
Date Issued:	2020
Citation:	Communications in Plant Sciences, v. 10, p. 1-10, 2020.
Description:	The use of allelopathy emerges as an alternative method for weed management in crops, especially in small vegetable producing properties. Thus, the objective of this work was to identify possible allelopathic effects of aqueous extracts of the weeds Cyperus difformis L. (small-flowered nutsedge), Commelina benghalensis L. (benghal dayflower) and Galinsoga parviflora Cav. (gallant soldier) on seed germination and seedling growth of Lactuca sativa L. (lettuce) and Lycopersicum esculentum L. (tomato). Two experiments were carried out in a completely randomized design with five replications, the first with lettuce seeds and the second with tomato seeds submitted to germination in five concentrations of weeds aqueous extracts (0, 25, 50, 75 and 100%). All treatments with aqueous extracts of the three species, at different concentrations, caused a reduction in lettuce and tomato root length. There was a reduction in most of the evaluated variables, and seed germination of the crops had the lowest influence of the extracts. The weeds benghal dayflower, small-flowered nutsedge and gallant soldier showed allelopathic potential on lettuce and tomato crops. This potential allelopathic effect is directly related to the concentration and type of extract from the plant species. In general, it can be noted that the greatest allelopathic effect occurred with the use of small-flowered nutsedge extract, followed by gallant soldier and benghal dayflower.
Thesagro:	Alelopatia Galinsoga Parviflora Erva Daninha
NAL Thesaurus:	Cyperus difformis Commelina benghalensis
Keywords:	Extrato aquoso Palavra daninha
DOI:	10.26814/cps2020002
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CNPMS)