engleski

Response of weed species on allelopathic potential of Aloe vera (L.) Burm.f.

The allelopathic effect of plant species Aloe vera (L.) Burm.f. was evaluated on germination and growth of weeds. Water extracts from fresh leaves in concentrations up to 10% were examined in Petri dish bioassay. Application of water extracts showed no effect on germination of redroot pigweed (Amaranthus retroflexus L.), scentless mayweed (Tripleurospermum inodorum (L.) C.H. Schultz) and velvetleaf (Abutilon theophrasti Medik.), however the highest extract concentration reduced germination of black nightshade (Solanum nigrum L. emend Miller) for 19.6%. Root length of weed species was not affected by extracts, while shoot length, fresh and dry weight of black nightshade, redroot pigweed and velvetleaf seedlings was stimulated. Among weed species, scentless mayweed proved to be the most tolerant.

allelopathy ; Aloe vera ; Abutilon theophrasti ; Amaranthus retroflexus ; germination ; Solanum nigrum ; Tripleurospermum inodorum

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