Allelopathic Potential of Plant Aqueous Mixtures on Euphorbia heterophylla

Adeline dos Santos Novakoski, Érica Marusa Pergo Coelho, Guilherme Tomé Ravagnani, Andréia Cristina Peres Rodrigues da Costa, Stella Alonso Rocha, Valdir Zucareli and Ana Daniela Lopes
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Adeline dos Santos Novakoski: State University of Maringá—UEM, Umuarama 87502-970, Brazil
Érica Marusa Pergo Coelho: State University of Maringá—UEM, Umuarama 87502-970, Brazil
Guilherme Tomé Ravagnani: State University of Maringá—UEM, Umuarama 87502-970, Brazil
Andréia Cristina Peres Rodrigues da Costa: State University of Maringá—UEM, Umuarama 87502-970, Brazil
Stella Alonso Rocha: Federal Institute of Paraná—IFPR, Umuarama 87507-014, Brazil
Valdir Zucareli: State University of Maringá—UEM, Umuarama 87502-970, Brazil
Ana Daniela Lopes: University Paranaense—UNIPAR, Umuarama 87502-210, Brazil

Agriculture, 2020, vol. 10, issue 10, 1-14

Abstract: Euphorbia heterophylla is a widely distributed weed whose seeds can remain viable in the soil for years, competing with crops. Therefore, natural herbal preparations could be a solution for its more diversified management. This study investigates the efficacy and mode of action of aqueous mixtures of Urochloa ruziziensis stems and Sorghum bicolor roots and stems on E. heterophylla seed germination, seedling development, antioxidant enzyme activity, and respiration. Aqueous mixtures with concentrations of 0 (control), 250, 500, 750 and 1000 ppm were prepared. E. heterophylla seeds were treated with the mixtures and incubated under controlled conditions. Seedling development, respiration, and enzyme activity were assessed after 4 days of incubation and germination was analyzed after 16 days. Urochloa ruziziensis and S. bicolor mixtures presented allelopathic effects on E. heterophylla inhibiting root growth, root fresh and dry weights and induced mitochondrial alterations resulting in oxidative stress, increasing the antioxidant enzymes catalase and peroxidase. U. ruziziensis and S. bicolor aqueous mixtures were found to have potential in controlling the weed E. heterophylla in laboratory tests.

Keywords: allelopathy; Brachiaria; Sorghum; mitochondria; oxidative stress (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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