Taxonomy and Ecology Of Inland Sand Dune ... - Mycorrhizae

45the July transect (FIG. 15). However,the correlation (R 2 = 0.078) betweenMIP values and initial species frequencyin quadrates along the July transect(FIG. 16) is poor. The positivecorrelation between MIP values andinitial percent cover (R 2 = 0.374) andspecies frequency (R 2 = 0.124)improved in the quadrates from Augusttransect (FIG. 17 and FIG. 18).FIG. 13 Regression of mycorrhizalinoculum potential (MIP) and initialplant species cover percent along Junetransect as measured by mycorrhizalformation in Zea mays bioassay plants;mean of MIP and percent cover arerepresented at each point.showed that MIP values did not changesignificantly (P = 0.465) with a changein number of plant species present ineach quadrate. In contrast, percent coverdecreased significantly (P = 0.004) asthe number of plant species present perquadrate increased (FIG. 19).FIG. 14 Regression of mycorrhizalinoculum potential (MIP) and initialplant species frequency along Junetransect as measured by mycorrhizalformation in Zea mays bioassay plants;mean both MIP and species frequencyare represented at each point.The one-way ANOVA tests of thecombined data from the three transects