Effect of Erigeron Annuus on Wheat Seed Germination and Seedling Growth
In order to clarify the effect of Erigeron annuus on wheat seed germination and physiological and biochemical proper-ties,with Yangmai 13 and Xiaoyan 22 as materials,physiological indicators such as germination potential,germination rate,root length,seedling length,fresh weight,dry weight and propylene dialdehyde(MDA)content and hyperoxide dismutase(SOD)activity in leaves were determined under the treatment of different concentrations of dip lotions at different parts of E.annuus.The results showed that the growth inhibition of the two wheat varieties during germination and seedling stage was ob-viously enhanced with the increase of the concentration of E.annua extract,and the number of roots increased with the in-crease of E.annua extract.The SOD activity of seedlings increased first and then decreased with the increase of the concentra-tion of the extract.At the same concentration,the allelopathy of stem and leaf was greater than that of root.The test results show that Xiaoyan 22 is less susceptible to allelopathy and more adaptable.
leaching solution of Erigeron annuawheat seedsgermination
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