2020
DOI: 10.32404/rean.v7i4.4230
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ALLELOPATHIC EFFECT OF Sorghum bicolor AND Digitaria insularis ON GERMINATION AND INITIAL DEVELOPMENT OF CANOLA

Abstract: Agriculture depends on biotic and abiotic factors, and one of them is allelopathy, defined as the chemical interference that one plant has on others, which can negatively affect germination. The objective of this work is to evaluate the allelopathic effects of Sorghum bicolor and Digitaria insularis on seed germination and initial development of canola seedlings (Brassica napus L.). A completely randomized design was used in a 2x5 factorial scheme (two extracts: D. insularis and S. bicolor) and five concentrat… Show more

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Cited by 4 publications
(3 citation statements)
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“…While (19) it was reported a negative effect of aqueous extracts of Conyza sumatrensis (from roots and shoots) on seed germination of Bidens pilosa, with an increase due to the increased concentration of extracts, as well as a stronger effect for the root extracts. Similar to observed for D. insularis extracts on canola germination (34).…”
Section: Discussionsupporting
confidence: 85%
“…While (19) it was reported a negative effect of aqueous extracts of Conyza sumatrensis (from roots and shoots) on seed germination of Bidens pilosa, with an increase due to the increased concentration of extracts, as well as a stronger effect for the root extracts. Similar to observed for D. insularis extracts on canola germination (34).…”
Section: Discussionsupporting
confidence: 85%
“…A competição de plantas, acaba prejudicando o desenvolvimento da cultura, isto porque ocorre certa competição pela extração dos elementos vitais: água, luz, CO2 e nutrientes que exercem inibição química sobre o desenvolvimento das plantas, fenômeno esse, denominado de alelopatia. Além de reduzir a produção, pode ocorrer depreciação qualitativa, em razão da contaminação com sementes e restos de plantas daninhas (Takada, 2012;Campos et al, 2020).…”
Section: Introductionunclassified
“…Para que se possa realizar um controle adequado dessas plantas, a indicação é que se faça um controle rígido com a interferência de produtos químicos específicos como o herbicida. Essa classe de produtos vem crescendo no mercado do sorgo por conter exatamente os princípios necessários para combater as plantas invasoras sem danificar a planta de cultura (Takada, 2012;Campos et al, 2020). No topo da lista das dificuldades de produção do sorgo, as plantas daninhas possuem lugar significativo como um dos gargalos do sistema de manejo, devido as opões de herbicidas serem escassas, tornando o controle muitas vezes ineficaz (Salvalaggio et al, 2018).…”
Section: Introductionunclassified