Reproduction allocation and potential mechanism of individual allelopathic rice plants in the presence of competing barnyardgrass

Kong, Chui‐Hua; Wang, Mingli; Wang, Peng; Ni, Hanwen; Meng, Xiangrui

doi:10.1002/ps.3380

Cited by 7 publications

(2 citation statements)

References 43 publications

(98 reference statements)

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“…These contradictory effects may be explained by the biochemical plasticity and below‐ground complementary interactions between allelopathic wheat and these weeds. Plants can modulate their growth and the production of secondary metabolites in response to competitors and other environmental conditions, resulting in morphological and chemical plasticity . The plant interactions within a mixed‐species system are a balance of negative and positive interactions among the component species.…”

Section: Discussionmentioning

confidence: 99%

Interference of allelopathic wheat with different weeds

Zhang

Kong

et al. 2015

Pest Management Science

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Section: Discussionmentioning

confidence: 99%

Interference of allelopathic wheat with different weeds

Zhang

Kong

et al. 2015

Pest Management Science

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“…Because all types of organic substances synthesized via photosynthesis are initially stored in leaves, they may contain more allelochemicals and at higher concentrations [25], thereby enhancing the allelopathic effect of C. migao. When all the extracts were at low and medium concentrations (0.5-5 mg mL −1 ), they promoted the growth of L. formosana, Although allelopathy is generally considered an inhibitory mechanism [54,55], numerous studies have shown both promoting and inhibitory effects of aqueous plant products on the growth and development of surrounding plants via various mechanisms [56][57][58][59][60]. In this study, the aqueous C. migao extracts inhibited the growth of L. formosana when extracts concentration reached 50 mg mL −1 .…”

Section: Discussionmentioning

confidence: 99%

Allelopathic Effects of Cinnamomum migao on Seed Germination and Seedling Growth of its Associated Species Liquidambar formosana

Wang

Chen

Xiong

et al. 2019

Forests

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We examined allelopathic effects and underlying mechanisms of Cinnamomum migao on its associated species Liquidambar formosana. We assessed effects of aqueous extracts of C. migao pericarp, leaf, and rhizosphere soil at different concentrations on seed germination, seedling growth, and physiology of L. formosana. All extracts inhibited L. formosana seed germination, with obvious inhibition at high concentrations (50 mg mL−1). All extracts promoted the height and ground diameter of seedlings, with the highest promotion achieved with aqueous leaf extract at a concentration of 1 mg mL−1 and aqueous pericarp and rhizosphere soil extracts at a concentration of 5 mg mL−1. All extracts promoted soluble protein accumulation in L. formosana seedlings, with the highest accumulation achieved with aqueous pericarp extracts. Aqueous leaf extract promoted soluble starch accumulation. Aqueous pericarp extract at concentrations of >10 mg mL−1 significantly increased soluble sugar content. Aqueous leaf and rhizosphere soil extracts at concentrations of >5 mg mL−1 increased proline accumulation. All extracts at concentrations of >1 mg mL−1 significantly increased malondialdehyde content. Aqueous pericarp and rhizosphere soil extracts at concentrations of 10 and 0.5 mg mL−1, respectively, promoted superoxide dismutase activity. Activities of soil urease, polyphenol oxidase, and catalase were significantly increased when the concentration of aqueous pericarp and leaf extracts exceeded 5 mg mL−1, and the activity of soil acid phosphatase significantly increased when the concentration of all extracts were 5 mg mL−1. According to the synthetic allelopathic index, the low- and medium-concentration extracts all showed a promoting effect, whereas high concentrations exhibited obvious inhibitory effects; furthermore, the comprehensive effect value of leaf water extraction was higher than that of the pericarp and rhizosphere soil. Thus, allelopathy can affect the long-term co-existence of C. migao and L. formosana.

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