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Articles by Saeid Ghahari
Total Records ( 1 ) for Saeid Ghahari
  Saeid Ghahari and Mohammad Miransari
  Eight and ten rice cultivars were tested in laboratory and greenhouse bioassay, respectively to evaluate the allelopathic effects of rice (Oryza sativa L.) hull extracts on the growth parameters of different rice cultivars. Extracts of rice hulls at different concentrations including 0, 5, 10 and 15% were produced and used to treat seeds of different rice cultivars. The growth parameters of germinated rice seeds after incubation for 12 days in the germinator were evaluated. In the greenhouse experiment, the treated seedlings were harvested at 21 days after planting and growth parameters determined. Treatments were combined factorially in both experiments, which were performed on the basis of a complete randomized design. Both positive and adverse effects of rice extracts on the growth of different rice cultivars in both experiments were observed. Although, the growth of genetically modified cultivars were greatly superior to the local ones, the inhibitory effects of their extracts were very much clear on the growth of different cultivars. This indicates that more modification of these cultivars, with respect to the related rice phytotoxicity potential and the response of rice cultivars to phytotoxins is necessary. Thus, there are some kinds of interactions between different rice cultivars, greatly influencing their production efficiency.
 
 
 
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