Abstract
Allelopathic effect of aqueous extracts of different organs of three sunflower cultivars on germination of radish
Highlights
The radish (Raphanus sativus L.) has been widely used as winter forage in southern Brazil, preceding crops such as wheat, canola, maize, and soybeans
This study aimed to evaluate the allelopathic potential of aqueous extracts of different organs of three sunflower cultivars on the germination and initial development of radish
The allelopathic activity differs between organs and sunflower cultivars
Summary
The radish (Raphanus sativus L.) has been widely used as winter forage in southern Brazil, preceding crops such as wheat, canola, maize, and soybeans. That efficiency is due to its high production of biomass and excellent ground cover (CONCENÇO et al, 2013). Due to its great use for ground cover and pasture establishment, this species has become an important weed (LAMEGO et al, 2013). Winter and summer crops in Brazil are hindered by the presence of the radish. In canola crops, the radish together with other weeds such as Lolium multiflorum L. and Raphanus raphanistrum L. compete for water, light, nutrients, and CO2, and, in some cases, the radish may exhibit resistance to ALS (Acetolactate synthase), inhibiting herbicides (GALON et al, 2015)
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