Effects of arbuscular mycorrhizal fungi (AMF) on growth and regrowth of bermudagrass under different P supply levels

Abstract

Abstract: Effects of the arbuscular mycorrhizal fungi (AMF) Glomus mosseae and G. aggregatum, on the growth and regrowth of bermudagrass (Cynodon dactylon) when combined with P applications of 20, 40 or 100 mg/kg were examined in pot experiments. Both G. mosseae and G. aggregatum colonized roots of bermudagrass well and the colonization rate of G. aggregatum was higher than that of G. mossea. N concentration of shoots was positively correlated with P concentration (P<0.001), indicating a potential cooperative effect between N and P absorption in bermudagrass. Regrowth rate and shoot biomass were higher in mycorrhizal bermudagrass than in the control during four cutting periods. P application also benefited growth and regrowth of bermudagrass, especially at an application rate of 40 mg/kg. Thus, in order to enhance regrowth of bermudagrass, AMF inoculation and an appropriate supply of P will be needed for regrowth and nutrition absorption.

CLC Number:

YE Shao-ping, ZENG Xiu-hua, XIN Guo-rong, BAI Chang-jun, LUO Ren-feng, LIU Xin-lu. Effects of arbuscular mycorrhizal fungi (AMF) on growth and regrowth of bermudagrass under different P supply levels[J]. Acta Prataculturae Sinica, 2013, 22(1): 46-52.

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