Effects of AM fungi on the growth and chemical composition of tobacco leaf under different P levels

Abstract

Abstract: The effects of AM fungi on the growth and chemical composition of tobacco leaf i n pot culture under different P levels was investigated by inoculation Glomus mosseae and G.caledonium.The results showed that mycorrhizal infection rat e could be promoted by inoculation,and increased total dry weight of tobacco lea f.Significant inoculation effect on leaf dry weight of lower and upper position was found. G.mosseae significantly increased the content of total sugar,nicot ine,P,K of middle position leaf and K of upper position leaf. G.caledonium si gnificantly increased the content of total sugar,P of lower position leaf and to tal sugar,reducing sugar,nicotine,P of upper position leaf.The content of N,Mg,F e and Zn of tobacco leaf was closed related to AM fungal species and P applied levels.Inoculation effect of AM fungi was the best under 0.056～0.112g P·kg^-1 soil.

CLC Number:

S154.36

HE Xueli, ZHAO Fanggui, LI Bin, SUN Wei. Effects of AM fungi on the growth and chemical composition of tobacco leaf under different P levels[J]. Chinese Journal of Applied Ecology, 2001, (5): 761-764.

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