Clone-Specific Response in Leaf Nitrate Reductase Activity among Unrelated Hybrid Poplars in relation to Soil Nitrate Availability

<table>Effect of substrate concentration on nitrate reductase activity (NRA) of clone DxN-3570 and clone MxB-915311. All data points are means of duplicate samples and vertical bars represent SD of the means.</table>

International Journal of Forestry Research

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Figure 2

Figure 2: Clone-Specific Response in Leaf Nitrate Reductase Activity among Unrelated Hybrid Poplars in relation to Soil Nitrate Availability 