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Table 6 Relative yield (RY), relative yield total (RYT), and competitive balance (CB) index of Helianthus tuberosus and Ageratina adenophora under different shade levels

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

Variables

Different shade rates

60%

40%

20%

0%

H. tuberosus RYa

0.982 + 0.017c**

0.959 + 0.017c**

1.019 + 0.019b**

1.119 + 0.013a**

A. adenophora RYb

0.447 + 0.021a**

0.426 + 0.019a**

0.371 + 0.017b**

0.327 + 0.010c**

RYT

0.715 + 0.011a**

0.692 + 0.013b**

0.695 + 0.009b**

0.723 + 0.009a**

CBa index for H. tuberosus

0.787 + 0.057c**

0.812 + 0.046c**

1.012 + 0.056b**

1.231 + 0.033a**

  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
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BMC Ecology and Evolution

ISSN: 2730-7182

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