Radish

Both brassicas release glucosinolates that can inhibit each other's growth when planted in succession or close proximity

Radish allelopathic compounds can negatively affect carrot root development

Foothill palo verde's root system and allelopathic compounds compete with and inhibit radish growth

Wasabi and radish, both brassicas, produce competing allelopathic glucosinolates that inhibit growth

Bog myrtle produces allelopathic terpenoids and phenolic compounds that can inhibit radish germination

Different radish varieties compete for root space and can cross-pollinate, affecting seed quality