International Journal of Forestry Research / 2014 / Article / Fig 9

Research Article

Effects of Drought Frequency on Growth Performance and Transpiration of Young Black Locust (Robinia pseudoacacia L.)

Figure 9

Mean and standard deviation of the (a) total leaf area and (b) root weight:leaf area ratio at 5, 20, and 40 cm depth. *Nonparametric analysis Mann-Whitney -Test. *Different letters indicate significant difference ( ).