Invasiveness traits help Amaranths to invade Kashmir Himalaya, India

Assad, Rezwana; Rashid, Irfan; Reshi, Zafar A.; Sofi, Irshad Ahmad

doi:10.1007/s42965-020-00129-y

Cited by 4 publications

(6 citation statements)

References 45 publications

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“…Invasive plants tend to exhibit higher reproductive capacity than natives in order to become dominant in the community and invade habitats (Assad et al, 2021). High light level could increase the seed production of invaders (Feng et al, 2007).…”

Section: Discussionmentioning

confidence: 99%

“…About 50% aboveground biomass of Solidago canadensis was reduced by VOCs of invasive Artemisia vulgaris (Barney et al, 2009). In general, invasive species are taller than co‐occurring native species (Assad et al, 2021; Wang et al, 2018). We found that the stem length of invasive P .…”

Section: Discussionmentioning

confidence: 99%

“…Root biomass and shoot biomass (leaf biomass + stem biomass + raceme biomass) were used to obtain the root/shoot (R/S) ratio (Yu et al, 2020). Resource allocation was assessed by the biomass of a particular plant tissue and the total biomass of the plant according to the formula: leaf mass fraction (LMF) = leaf biomass/total biomass of the plant × 100% (Assad et al, 2021); stem, flower, and root mass fraction (SMF, FMF, and RMF) was similarly calculated.…”

Section: Methodsmentioning

confidence: 99%

“…The later light capture strategy might be contributed to the invasion success of P. americana, because the ability to compete for light is often treated as the primary mechanism of invasiveness (Feng et al, 2007;He et al, 2018). habitats (Assad et al, 2021). High light level could increase the seed production of invaders (Feng et al, 2007).…”

Section: Invasive P Americana Grown Better Than Native P Acinosa Unde...mentioning

confidence: 99%

“…Invasive plants often exhibit rapid growth and efficient reproduction (Assad et al, 2021; Cai et al, 2021; Luo et al, 2020; Skálová & Pyšek, 2009), and generally become dominant in the introduced range, causing serious ecological damage and economic loss (Bartz & Kowarik, 2019; Rai & Singh, 2020). Identifying environmental factors that facilitate alien plants invasion are important and helpful to understand invasion mechanisms further, and provide insights into local species protection.…”

Section: Introductionmentioning

confidence: 99%

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Effect of plant VOCs and light intensity on growth and reproduction performance of an invasive and a native Phytolacca species in China

Liu

Chen

et al. 2022

Ecology and Evolution

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Invasive plants often pose great threats to the growth of co‐occurring native plant species. Identifying environmental factors that facilitate exotic plant invasion and native species decline are important. In this study, we measured the effects of plant volatile organic compounds (VOCs), light intensity, and their interactions on the growth and reproduction performance of indigenous Phytolacca acinosa, and invasive Phytolacca americana, which has largely replaced the former in China. VOCs of invasive P. americana and low light levels both had negative effects on P. acinosa morphological and reproductive traits (stem length, average leaf number, total number, and length of racemes), and biomass allocation (total biomass, and leaf and flower mass fraction); low light also affected photosynthesis‐related trait (specific leaf area) of P. acinosa. In contrast, VOCs of P. acinosa had no significant effect on P. americana, but low light levels adversely affected its morphological and reproductive traits (stem length, total number, and length of racemes) and biomass allocation (total biomass, stem, and leaf mass fraction). Interactions between plant VOCs and light intensity had no significant effects on P. acinosa or P. americana. Under all experimental treatments, stem length, average leaf area, total number, and length of racemes, Root/Shoot ratio, root and flower mass fraction of P. americana were higher than those of P. acinosa, while average leaf number, specific leaf area, and leaf mass fraction was lower. These results indicated that P. acinosa was sensitive to P. americana VOCs and low light, which might affect the growth of sympatric P. acinosa. P. americana was negatively influenced by low light, but higher plant height and more reproductive organ resource allocation relative to sympatric P. acinosa might contribute to invasion success.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Invasive P Americana Grown Better Than Native P Acinosa Unde...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of plant VOCs and light intensity on growth and reproduction performance of an invasive and a native Phytolacca species in China

Liu

Chen

et al. 2022

Ecology and Evolution

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Germination patterns and seedling growth of congeneric native and invasive Mimosa species: Implications for risk assessment

Kharel,

Dangol,

Shrestha

et al. 2024

Ecology and Evolution

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Comparisons of plant traits between native and invasive congeners are useful approaches for identifying characteristics that promote invasiveness. We compared germination patterns and seedling growth of locally sympatric populations of native Mimosa himalayana and two varieties of invasive M. diplotricha (var. diplotricha and var. inermis) growing in southeastern Nepal. Seeds were germinated under a 12‐h photoperiod or complete dark, low (25/15°C day/night) and high (30/20°C) temperatures, different water stress levels (0, −0.1, −0.25, −0.5, −0.75 and −1.0 MPa), and soil depths (0, 2, and 4 cm). Plant height, biomass allocations, and relative growth rate (RGR) of seedlings were measured. Invasive M. diplotricha had higher germination percentage, rate, and shorter germination time compared with the native species. Germination of both congeners declined as water stress increased, but the decline was more pronounced in native species. Seedling emergence declined with increasing depth in all taxa. The seedlings of invasive species were taller with higher leaf number and allocated greater proportion of biomass to shoot, whereas the native congener allocated greater biomass to root. The RGR was nearly twice as high in invasive species as it was in the native congener. Seedling height and number of leaves were always higher in invasive than in native species, and the native–invasive differences increased over time. Better germination and higher growth performance of invasive species than the congeneric native one suggests that seed germination and seedling growth can be useful traits for the prediction of species' invasiveness in their introduced range during risk assessment process.

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Comparative allelopathic potential and phytochemical profiling of invasive and non-invasive alien species of Amaranthus

Ganiee,

Rashid,

Shah

et al. 2024

Chem. Pap.

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Invasiveness traits help Amaranths to invade Kashmir Himalaya, India

Cited by 4 publications

References 45 publications

Effect of plant VOCs and light intensity on growth and reproduction performance of an invasive and a native Phytolacca species in China

Effect of plant VOCs and light intensity on growth and reproduction performance of an invasive and a native Phytolacca species in China

Germination patterns and seedling growth of congeneric native and invasive Mimosa species: Implications for risk assessment

Comparative allelopathic potential and phytochemical profiling of invasive and non-invasive alien species of Amaranthus

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