Interpreting Data A botanist from Harvard University hypothesized that garlic mustard
Chapter 29, Problem 11(choose chapter or problem)
Interpreting Data A botanist from Harvard University hypothesized that garlic mustard, an invasive plant found in forests of the northeastern United States, suppresses the growth of trees by harming mycorrhizal fungi in nearby soil. To test this hypothesis, soil samples from invaded and uninvaded woodlands were collected, and half the samples were sterilized (to kill any fungi present). Two species of maple tree seedlings were planted, and the growth was calculated (as a percentage increase in the mass of the plant). The graph below presents the data. Do these data support the hypothesis that garlic mustard retards tree growth by harming soil fungi? Sugar maple Red maple Increase in plant biomass (%) 0 300 100 200 Invaded Uninvaded Sterilized invaded Sterilized uninvaded Soil type Seedlings Source K. A. Stinson et al., Invasive plant suppresses the growth of native tree seedlings by disrupting belowground m
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