Potential Use of Sweet Potato (Ipomoea batatas (L.) Lam.) to Suppress Three Invasive Plant Species in Agroecosystems (Ageratum conyzoides L., Bidens pilosa L., and Galinsoga parviflora Cav.)

Shen, S. C.; Xu, Gaofeng; Li, Diyu; Jin, Guimei; Liu, Shufang; Clements, David R.; Yang, Yongsheng; Rao, Jia; Chen, Aidong; Zhang, Fudou; Zhu, Xiaocheng; Weston, Leslie A.

doi:10.3390/agronomy9060318

Cited by 20 publications

(28 citation statements)

References 39 publications

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“…Under full sunlight, the leafstalk length and leaf area of A. adenophora progressively declined with increasing proportions of H. tuberosus , whereas those of H. tuberosus significantly increased with increasing proportions of A. adenophora in mixed culture. Similarly, previous studies also showed that the leaf area and Pn of some invasive species were greatly reduced with I. batatas competition [ 31 , 35 , 36 ]. The plant growth, biomass, leaf chlorophyll content, photosynthetic rate, transpiration rate, water use efficiency, and stomatal conductance of A. trifida were significantly decreased by H. tuberosus competition in mixed culture [ 11 , 37 ].…”

Section: Discussionsupporting

confidence: 59%

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

Shen

et al. 2021

BMC Ecol Evo

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Background An ecological approach for managing biological invasions in agroecosystems is the selection of alternative crop species to manage the infestation of invasive alien plants through competition. In the current study, 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 were compared under varying shade levels by utilizing a de Wit replacement series method. We hypothesized that H. tuberosus had higher competitive ability than A. adenophora even under shaded conditions. Results The results showed 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 40–60% shade and greater than 1.0 (P < 0.05) under 0–20% 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%). Conclusions Our results suggest that H. tuberosus is a promising replacement control candidate for managing infestations of A. adenophora, and could be widely used in various habitats where A. adenophora invades.

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Section: Discussionsupporting

confidence: 59%

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

Shen

et al. 2021

BMC Ecol Evo

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“…The appearance of G. parviflora is often associated with changes in the agriculture of a given area [ 46 , 47 ]. Research is being carried out to find crop species capable of suppressing the invasion of this and other weeds in agroecosystems, e.g., sweet potato [ 48 ].…”

Section: Discussionmentioning

confidence: 99%

Invasive Plant Species Distribution Is Structured by Soil and Habitat Type in the City Landscape

Szumańska

Lubińska-Mielińska

Kamiński

et al. 2021

Plants

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Invasive alien species (IAS) is a global problem that largely relates to human activities and human settlements. To prevent the further spread of IAS, we first need to know their pattern of distribution, to determine which constitutes the greatest threat, and understand which habitats and migration pathways they prefer. Our research aimed to identify the main vectors and distribution pattern of IAS of plants in the city environment. We checked the relations between species distribution and such environmental factors as urban soil type and habitat type. We applied data on IAS occurrence (collected in the period 1973–2015) in 515 permanent plots with dimensions of 0.5 × 0.5 km and analyzed by direct ordination methods. In total, we recorded 66 IAS. We found a 27% variance in the IAS distribution pattern, which can be explained by statistically significant soil and habitat types. The most important for species distribution were: river and alluvial soils, forests and related rusty soils, and places of intensive human activities, including areas of urbisols and industriosols. Our results provide details that can inform local efforts for the management and control of invasive species, and they provide evidence of the different associations between natural patterns and human land use.

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“…However, once the leaf canopy has closed, most sweetpotato cultivars do an excellent job preventing soil erosion and suppressing weed growth through shading and allelopathy (Cavalcante et al, 2018;Seem et al, 2003;Walker et al, 1989). As such, sweetpotatoes have shown potential for controlling invasive plant species when used as a suppressive groundcover (Shen et al, 2015(Shen et al, , 2019. Although canopy coverage in sweetpotatoes typically approaches 100% well before harvest (Labonte et al, 1999), there are differences among genotypes in how long this takes, suggesting that sweetpotato clones may vary substantially in the weed-free interval required to produce maximum yields.…”

Section: Discussionmentioning

confidence: 99%

Phenotypic Variation in Leaf Morphology of the USDA, ARS Sweetpotato (Ipomoea batatas) Germplasm Collection

Jackson¹,

Harrison²,

Jarret³

et al. 2020

horts

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During 2012–14, 737 sweetpotato, Ipomoea batatas (L.) Lam. (Convolvulaceae), plant introduction (PI) accessions from the U.S. Department of Agriculture, Agricultural Research Service (USDA, ARS) sweetpotato germplasm collection were evaluated for several phenotypic leaf and plant characteristics, and a photographic record of each accession was made. Data were prepared for placement in the USDA, ARS Germplasm Resources Information Network (GRIN) database and the sweetpotato ontology. The parameters recorded for each genotype were canopy coverage, vine length, general leaf outline, leaf lobing, shape of the central leaf lobe, number of leaf points, leaf petiole length, leaf width, leaf length, leaf width × length, and leaf width/length (aspect ratio). The data indicate that there is wide genetic diversity for vegetative phenotypic characteristics within the USDA, ARS sweetpotato germplasm collection. This study provides important phenotype information for the USDA, ARS sweetpotato collection that has been lacking and can be used for curation of the collection and by researchers and breeders working with this important global food crop.

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Potential Use of Sweet Potato (Ipomoea batatas (L.) Lam.) to Suppress Three Invasive Plant Species in Agroecosystems (Ageratum conyzoides L., Bidens pilosa L., and Galinsoga parviflora Cav.)

Cited by 20 publications

References 39 publications

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

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

Invasive Plant Species Distribution Is Structured by Soil and Habitat Type in the City Landscape

Phenotypic Variation in Leaf Morphology of the USDA, ARS Sweetpotato (Ipomoea batatas) Germplasm Collection

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