By regulating components in B5 culture media,under four concentrations(1/2 B5,B5,3/2 B5,and 2 B5) of the five necessary elements(P,Mg,Fe,Cu,and B),allelopathic effect of pumpkin root culture(Var.Jingou) filtrates on the growth of two receiving plant seedlings(Cucurbita moschata M.Var.Jingou and Var.Heizi) were studied.The results indicated that different elements showed various effects on growth of receiving plant seedlings,which depended significantly on their corresponding contents and varieties of the ac...
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