Willow bark extract and the biostimulant complex Root Nectar® increase propagation efficiency in chrysanthemum and lavender cuttings

Wise, Kimber; Gill, Harsharn; Selby‐Pham, Jamie

doi:10.1016/j.scienta.2019.109108

Cited by 40 publications

(25 citation statements)

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“…Actually, in the field of agriculture and horticulture, there is already interest in plant extracts (so‐called biostimulants or bioeffectors) that could stimulate crop production (Wise et al . 2020). Due to the bias in publication of positive effects, non‐monotonic effect of concentration, if present, might be hard to detect using meta‐analysis.…”

Section: Discussionmentioning

confidence: 99%

“…For example, if studies that used low concentrations of allelochemicals found positive effects, they might not have published this result or the publication might not use the term 'allelopathy'. Actually, in the field of agriculture and horticulture, there is already interest in plant extracts (so-called biostimulants or bioeffectors) that could stimulate crop production (Wise et al 2020). Due to the bias in publication of positive effects, nonmonotonic effect of concentration, if present, might be hard to detect using meta-analysis.…”

Section: Future Directionsmentioning

confidence: 99%

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Effect of allelopathy on plant performance: a meta‐analysis

et al. 2020

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Allelopathy (i.e. chemical interactions between plants) is known to affect individual performance, community structure and plant invasions. Yet, a quantitative synthesis is lacking. Here, we performed a meta-analysis of 384 studies that measured allelopathic effects of one species (allelopathy plant) on another species or itself (test plant). Overall, allelopathy reduced plant performance by 25%, but the variation in allelopathy was high. The type of method affected the allelopathic effect: compared to leachates, allelopathy was more negative when residues of allelopathy plants were applied, and less negative when soil conditioned by allelopathy plants was applied. The negative effects of allelopathy diminished with study duration, and increased with concentrations of leachates or residues. Although allelopathy was not significantly related to lifespan, life form or domestication of the interacting plants, it became more negative with increasing phylogenetic distance. Moreover, native plants suffered more from leachates of naturalised alien plants than from leachates of other native plants. Our synthesis reveals that allelopathy could contribute to success of alien plants. The negative relationship between phylogenetic distance and allelopathy indicates that allelopathy might contribute to coexistence of closely related species (i.e. convergence) or dominance of single species.

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Section: Discussionmentioning

confidence: 99%

Section: Future Directionsmentioning

confidence: 99%

Effect of allelopathy on plant performance: a meta‐analysis

et al. 2020

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show abstract

“…For example, if studies that tested low concentrations of allelochemicals found positive effects, they might not have published this result or the publication might not use the term 'allelopathy'. Actually, in the field of agriculture and horticulture, there is already interest in plant extracts (so-called biostimulants or bioeffectors) that could stimulate crop production 52 . Due to the bias in publication of positive effects, nonmonotonic effect of concentration, if present, might be hard to detect using meta-analysis.…”

Section: Future Directionsmentioning

confidence: 99%

Effect of allelopathy on plant performance

Zhang

Liu

Yuan

et al. 2020

Preprint

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12Allelopathy (i.e. chemical interactions between plants) is known to affect individual performance, 13 community structure and plant invasions. Yet, a quantitative synthesis is lacking. We performed 14 a meta-analysis of 385 studies that measured allelopathic effects of one species (allelopathy plant) 15 on another species or itself (test plant). Overall, allelopathy reduced plant performance by 25%, 16 but the variation in allelopathy was high. Type of method affected allelopathic effect. Compared 17 to leachates, allelopathy was more negative when residues of allelopathy plants were applied, 18 and less negative when soil conditioned by allelopathy plants was applied. The negative effects 19 of allelopathy diminished with study duration, and increased with concentrations of leachates or 20 residues. Although allelopathy was not significantly related to life span, life form and 21 domestication of the interacting plants, it became more negative with increasing phylogenetic 22 distance. Moreover, native plants suffered more negative effects from leachates of naturalized 23 alien plants than of other native plants. Our synthesis reveals that allelopathy could contribute to 24 success of alien plants. The negative relationship between phylogenetic distance and allelopathy 25 indicates that allelopathy might drive coexistence of close-related species (i.e. convergence) or 26 dominance of single species. 27 28 Keywords: allelopathy, crop, invasive species, life history, meta-analysis, phylogeny, soil 29 microbes, succession 30 plants (see Table 1 for a summary of the major methods that have been used to test allelopathy). 54The differences in study design partly reflect the four pathways through which allelochemicals 55 are released into the environment, that is, leaching from plants by rain, decomposition of plant 56 residues (e.g. litter), exudation from roots and volatilization (Fig. 2; Rice 2 p309). However, 57 studies also differ with regard to the different life stages of plants (e.g. germination vs. growth) 58 and the duration of the experiment (Fig. S2). Disentangling the importance of the different 59 factors related to the study design can hardly be achieved in a single case study, but is feasible in 60 a meta-analysis. 61Variance in allelopathy can also arise from biological traits of plants. Several studies of 62 plant succession revealed that the effect of allelopathy may depend on life history. For example, 63Jackson and Willemsen 17 reported that ragweed (Ambrosia artemisiifolia) and wild radish 64 (Raphanus raphanistrum), which are short-lived and early-successional species, cannot 65 reestablish on soils on which the long-lived and late-successional species Aster pilosus grew 66 previously. Besides life history, domestication may also matter as crop species appear to be more 67 sensitive to allelopathy than weeds 18 . From an evolutionary perspective, individuals of short-68 lived species are associated with other species for a shorter period than long-lived species are 19 . 69

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“…In a recent study, willow bark extract is reported to speed up propagation of chrysanthemum and lavender cuttings. Although the exact mode of efficacy could not be explained, it was reported to be associated with the presence of phytohormone SA [ 51 ].…”

Section: Introductionmentioning

confidence: 99%

Seed Treatment with Biostimulants Extracted from Weeping Willow (Salix babylonica) Enhances Early Maize Growth

Mutlu-Durak

Kutman

2021

Plants

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Biostimulants can be used as innovative and promising agents to address current needs of sustainable agriculture. Weeping willow tree (Salix babylonica) extracts are rich in many bioactive compounds, including, but not limited, to salicylates and phenolics. In this study, the potential of willow bark (WB) and willow leaf (WL) extracts is evaluated as plant-based biostimulants to improve the early growth of maize (Zea mays) under control and salinity stress conditions. In 3 days, seed treatment with salicylic acid and willow extract increased the shoot FW of maize seedlings 130% and 225%, respectively. The root area was, on average, enhanced by 43% with SA and 87% with willow extract applications. Moreover, these extracts increased the leaf protein concentration and reduced the negative effects of salinity during early growth. Reductions in lipid peroxidation and specific activities of antioxidative enzymes by seed treatments with willow extracts suggests a mitigation of salinity-induced oxidative stress. For most reported traits, WL applications were at least as effective as WB applications. Results indicate that aqueous extracts of weeping willow leaves, as well as bark, can be used as seed treatment agents with biostimulant activity to improve seedling growth and establishment under control and stress conditions.

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Willow bark extract and the biostimulant complex Root Nectar® increase propagation efficiency in chrysanthemum and lavender cuttings

Cited by 40 publications

References 34 publications

Effect of allelopathy on plant performance: a meta‐analysis

Effect of allelopathy on plant performance: a meta‐analysis

Effect of allelopathy on plant performance

Seed Treatment with Biostimulants Extracted from Weeping Willow (Salix babylonica) Enhances Early Maize Growth

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