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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