2005•Annual economic survey .../Annual economic survey - Central Bank of Trinidad and TobagoRequires access
Studies on Allelopathic Effects of the Aqueous Extracts of Roots of Different Varieties of Medicago Sativa L.
Yixin Shen
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Abstract
A study of allelopathic effects and mechanism on seed germination and seedling growth of Raphanus sativus with the aqueous extracts of roots of ten varieties of alfalfa was conducted. The results indicated that the allelopathy of Sanditi, Eureka, Alize and Alfaqeen which are varieties of alfalfa existed. Their aqucous extracts can affect the seed germination and seeding growth and effect degree was obviously different among concentrations. In the feasible concentration, the four varieties obviously promote growth of the roots of radish. The effects on the seeding and root of radish is evidently different among varieties of alfalfa, So is the effects on the activity of SOD and POD.