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Allelopathic potential of Chrozophora tinctoria on early growth of Barley and Wheat  [2015]

Asghar Aliloo, Ali Mustafavi, Seyed-Hamid Ezzati, Fariba

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Article Info ABSTRACT Accepted: 13 Feb. 2015 A laboratory bioassay was conducted to investigate the allelopathic effects of Chrozophora tinctoria on germination and seedling growth of barley and wheat. Aqueous leave extracts of C. tinctoria at 5, 10, 15 and 20 % concentrations were prepared and distilled water was used as a control. Results showed that germination percentage of two species decreased with increasing the extract concentrations; however, wheat germination was relatively resistant to allelochemicals than barley. In contrast to germination behavior, seedling traits showed different responses. The extracts improved seedling dry weights, particularly barley, whereas seedling lengths were inhibited. Roots of both species were more affected than shoots by extracts. The extracts reduced seed reserve mobilization significantly (p≤0.05). It was concluded that the used extract had inhibitory effects on seed germination of the crops; however, at seedling stages the effects were severely reduced.

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Azarian Journal of Agriculture