RESUMOPlantas de cobertura são importantes para a proteção do solo, controle de plantas daninhas e pela presença de aleloquímicos que influenciam a cultura sucessora. Avaliaram-se efeitos alelopáticos de ervilhaca, aveia-preta e azevém na germinação e crescimento do milho. As plantas foram secadas em estufa e trituradas em liquidificador. Os extratos foram obtidos a partir de processo de diluição do material triturado em água destilada a ±60 °C, nas concentrações de 100%, 75%, 50%, 25% e (0%). O delineamento foi inteiramente casualizado, arranjo fatorial 3 x 5 e 4 repetições. Avaliou-se porcentagem de plântulas normais, índice de velocidade de germinação, comprimento da maior raiz, altura da parte aérea. Para plântulas normais e índice de velocidade de germinação não se constatou efeito significativo dos diferentes extratos de plantas de cobertura em relação às concentrações de extrato utilizadas, já para as diferentes concentrações de extrato sem distinção da planta de cobertura utilizada houve diferença. O comprimento da raiz principal e altura da parte aérea também foram significativos para as concentrações utilizadas em relação às diferentes plantas de cobertura.Palavras-chave: alelopatia; plantas de cobertura; concentrações de extratos. ABSTRACTCover plants are important for soil protection, weed control and the presence of allelochemicals that influence the successor crop. Allelopathic effects of vetch, black oats and ryegrass were evaluated on germination and corn growth. The plants were oven dried and shredded in a blender. The extracts were obtained by diluting the crushed material in distilled water at ± 60 ° C in the concentrations of 100%, 75%, 50%, 25% and (0%). The design was completely randomized, factorial arrangement 3 x 5 and 4 replications. The percentage of normal seedlings, germination speed index, length of the largest root, and shoot height were evaluated. For normal seedlings and germination speed index there was no significant effect of the different extracts of cover plants in relation to the extract concentrations used, since for the different concentrations of extract without distinction of the cover plant used, there was a difference. The length of the main root and shoot height were also significant for the concentrations used in relation to the different cover crops.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.