Skip to main content
Dryad logo

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

Citation

Shen, Shicai et al. (2021), Potential use of Helianthus tuberosus to suppress the invasive alien plant Ageratina adenophora under different shade levels, Dryad, Dataset, https://doi.org/10.5061/dryad.s4mw6m96c

Abstract

This dataset contains data from field experiments described in the paper: “Shen, S., Xu, G., Li, D., et al. (2021) Potential use of Helianthus tuberosus to suppress the invasive alien plant Ageratina adenophora under different shade levels. BMC Ecology and Evolution, https://doi.org/10.1186/s12862-021-01826-5”.

The experiment examines the plant growth, photosynthesis, and competitive ability of the crop Helianthus tuberosus L. (Jerusalem artichoke) and the invasive alien plant Ageratina adenophora (Spreng.) R. M. King and H. Rob under varying shade levels by utilizing a de Wit replacement series method.

Main results of the experiments are that: The main stem, leafstalk length, leaf area, underground biomass, and aboveground biomass of A. adenophora were significantly lower compared to H. tuberosus in monoculture although A. adenophora had a greater number of branches that were longer on average. Under full sunlight, the total shoot length (stem + branch length), main stem length and branch length of A. adenophora were significantly suppressed (P < 0.05) by increasing proportions of H. tuberosus, and the same morphological variables of H. tuberosus were significantly higher with decreasing proportions of H. tuberosus. With increasing shade rates and plant ratios, the plant height, branch, leaf, and biomass of both plants were significantly suppressed, but to a greater degree in the case of A. adenophora. The net photosynthetic rate (Pn) of H. tuberosus and A. adenophora increased gradually from July to September, then decreased in October. The Pn of H. tuberosus was consistently higher than that of A. adenophora. Although the Pn for both species was significantly reduced with increasing shade rates and plant ratios, A. adenophora experienced greater inhibition than H. tuberosus. The relative yield (RY) of A. adenophora was significantly less than 1.0 (P < 0.05) in mixed culture under all shade levels, indicating that the intraspecific competition was less than interspecific competition. The RY of H. tuberosus was significantly less than 1.0 under 4060% shade and greater than 1.0 (P < 0.05) under 020% shade in mixed culture, respectively, showing that intraspecific competition was higher than interspecific competition under low shade, but the converse was true under high shade. The relative yield total (RYT) of A. adenophora and H. tuberosus was less than 1.0 in mixed culture, indicating that there was competition between the two plants. The fact that the competitive balance (CB) index of H. tuberosus was greater than zero demonstrated a higher competitive ability than A. adenophora even at the highest shade level (60%). 

Methods

The dataset was collected during the AprilOctober 2019 growing season at the Agricultural Environment and Resource Research Institute, Yunnan Academy of Agricultural Sciences, in Xiaojie Town, Songming County, utilizing a de Wit replacement series method.

Usage Notes

The readme file contains an explanation of each of the variables in the dataset and its measurement units. #NA =  values not available. Information on how the measurements were done can be found in the associated manuscript referenced above. 

Funding

Yunnan Provincial Key Fund Program, Award: 2018FA024