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Table 5 Relative yield (RY), relative yield total (RYT), and competitive balance (CB) index of Helianthus tuberosus and Ageratina adenophora under full sunlight

From: Potential use of Helianthus tuberosus to suppress the invasive alien plant Ageratina adenophora under different shade levels

Variables Ratios (H. tuberosus: A. adenophora)
2:1 1:1 1:2
H. tuberosus RYa 1.110 + 0.002b** 1.119 + 0.013b** 1.240 + 0.015a**
A. adenophora RYb 0.247 + 0.008c** 0.327 + 0.010b** 0.433 + 0.013a**
RYT 0.678 + 0.003c** 0.723 + 0.009b** 0.837 + 0.009a**
CBa index for H. tuberosus 1.504 + 0.033a** 1.231 + 0.033b** 1.052 + 0.035c**
  1. Data are expressed as mean ± standard deviation. Different letters within the same row signify significant differences at P < 0.05. The t-test was used to compare each value with 1.0 and 0; * and ** indicate significant differences at 0.05 and 0.01 levels, respectively