Title: Effects of Astragalus Seed Coating on Major Biological Adversity of Astragalus Membranaceus
Abstract: Objective:To observe the effects of Astragalus seed coating against Astragalus root rot and aphids.Methods:Firstly,the seed coating was added into an accurate quantification of melting potato sucrose agar medium;Subsequently,the medium was poured into sterilized petri dishes.The colony diameter was observed with 5 milliliters of sterile water instead of seed coating as a control.And then the well-selected Astragalus seeds were sowed after their being coated.The disease index of Astragalus root rot and the occurrence degree of aphid were investigated.Results:Astragalus seed coating possessed a higher inhibition rate than ND seed coating at the same effective concentration.With the increase of Astragalus seed coating concentration,the disease index of Astragalus root rot decreased gradually,but the occurrence degree of aphids was not reduced.Conclusion:The bacteriostatic effects of Astragalus seed coating is superior to ND seed coating.Astragalus seed coating can reduce the disease index of Astragalus root rot.Neither of the two seed coatings has effects against aphids.
Publication Year: 2009
Publication Date: 2009-01-01
Language: en
Type: article
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