Effect of aqueous extract of canola (Brassica napus L. cv RGS) on germination, growth and antioxidant enzymes activity in weed of Phallaris minor seedling

Subject Areas : Genetic

حسین LariYazdi ¹ , مه لقا Ghorbanli ² , میترا Roshani ³

1 - Assinstant professor, department of biology, Isalmic Azad University, Boroujerd
2 - Assinstant professor, department of biology, Isalmic Azad University, Gorgan,
3 - Assinstant professor, department of biology, Isalmic Azad University, Boroujerd

Received: 2006-07-15 Accepted : 2008-01-14 Published : 2008-02-20

Keywords: growth, antioxidant enzyme, Canola, Allelopathy, Extract, Phallaris,

Abstract :

Allelopathy is phenomenone that some of the plant species relase special chemical compounds and by this way inhibit germination and growth in other plants.Today using of allelopathic potential in plant is considering  in order to control of weeds growth. It is said that allelochemical compounds may in lower concentrations cause stimulate of growth and in higher concentrations inhibit it.In this research effect of different concentrations of aqueous extract of canola (0,10,20,40,60,80%) on germination percentage, growth parameters and peroxidase, catalase and polyphenol oxidase activity in Phallaris minor seedling was evaluated. Results this research showed that canola extract in higher concentrations decreased germination percentage, length, fresh and dry weight in radicle and hypocotyl of Phallaris.Also activity of antioxidant enzymes as peroxidase and catalase in higher concentrations of extract decreased.Only in 20% concentration of canola extract germination ,fresh weight of radicle, hypocotyl length and dry weight hypocotyl in Phallaris increased.

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