RT - Journal Article T1 - The allelopathic effects of aqueous extract of walnut (Juglans regia) leaves on some physiological and biochemical characteristics of parsley plants inoculated by mycorrhizal fungus Glomus versiforme JF - jispp YR - 2014 JO - jispp VO - 2 IS - 6 UR - http://jispp.iut.ac.ir/article-1-79-en.html SP - 65 EP - 76 K1 - Allelopathy K1 - Antioxidant enzymes K1 - Total protein K1 - Parsley K1 - Walnut K1 - Mycorrhiza. AB - The effects of different concentrations of walnut leaf extract on physiological and biochemical characteristics of parsley plants inoculated with mycorrhizal fungus Glomus versiforme and non-mycorrhizal plants were studied under greenhouse conditions. In the present study, three different concentrations of walnut extract (full extract, half and quarter concentration levels) were used. The results of the 45 day-old plants showed that the increasing of the concentration of walnut extract decreased amounts of chlorophyll a and b but increased the carotenoids content. This increase was more pronounced in mycorrhizal plants than non-mycorrhizal ones. When ΒΌ concentration of extract was applied the total protein content in mycorrhizal and non-mycorrhizal plant shoots was increased and then decreased at higher concentrations with increasing in concentrations of aqueous extract of walnut leaves. The free amino acids and proline content in plants were increased but such effects in non-mycorrhizal plants were greater than in mycorrhizal ones. Ascorbate peroxidase (APX) and Guaiacol peroxidase (GPX) activities in mycorrhizal and non-mycorrhizal plants also increased due to walnut extract, but the increased activity of these enzymes was higher in the inoculated plants. Results of this study indicated that by inoculating mycorrhizal fungi with root of parsley adverse potential effects of allelopathic extract on the physiological and biochemical characteristics of these plants. LA eng UL http://jispp.iut.ac.ir/article-1-79-en.html M3 ER -