Whole-Range Assessment: A Simple Method for Analysing Allelopathic Dose-Response Data

An, Malaviya; Pratley, James; Haig, Terrence; Liu, De li

doi:10.2201/nonlin.003.02.006

Cited by 22 publications

(10 citation statements)

References 23 publications

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“…The phytotoxic dose-response effects of the essential oil components on bristly foxtail germination and root length were assessed by the Whole-range assessment method [25]. The inhibition index was calculated as follows:…”

Section: Discussionmentioning

confidence: 99%

Herbicidal potential of lavender (Lavandula angustifolia Mill.) essential oil components on bristly foxtail (Setaria verticillata (L.) P. Beauv.): Comparison with carvacrol, carvone, thymol and eugenol

Koiou

Vasilakoglou

Dhima

2020

Arch biol sci (Beogr)

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223How to cite this article: Koiou K, Vasilakoglou I, Dhima K. Herbicidal potential of lavender (Lavandula angustifolia Mill.) essential oil components on bristly foxtail (Setaria verticillata (L.) P. Beauv.): comparison with carvacrol, carvone, thymol and eugenol. Arch Biol Sci. 2020;72(2):223-31.Herbicidal potential of lavender (Lavandula angustifolia Mill.) essential oil components on bristly foxtail (Setaria verticillata (L.) P. Beauv.): comparison with carvacrol, carvone, thymol and eugenol Abstract: Essential oils are a plentiful source of plant compounds for potential use in the development of natural herbicides. With this in mind, the phytotoxicity of ten major essential oil components of lavender (Lavandula angustifolia Mill.) on the weed species bristly foxtail (Setaria verticillata (L.) P. Beauv.) was determined using a perlite-based Petri-dish bioassay. Their phytotoxicity was also compared with that of well-known phytotoxic essential oil components (carvacrol, thymol, carvone and eugenol) of oregano (Origanum vulgare L.) and clove (Syzygium aromaticum (L.) Merr. & L.M. Perry) essential oils. Potential synergistic or antagonistic effects between carvacrol or eugenol with other components of lavender essential oil were investigated. Regarding the most phytotoxic components, terpinen-4-ol at 80 nL/cm 3 completely inhibited the germination and root length of bristly foxtail, displaying similar phytotoxicity to carvone and thymol. Like carvacrol, lavandulol and linalyl acetate caused total (100%) germination and root length reduction of bristly foxtail at 160 nL/cm 3 , while the same effect was achieved by lavandulyl acetate at 320 nL/cm 3 . A synergistic effect was also observed when carvacrol or eugenol were combined with ocimene, 3-octanone, α-terpineol or terpinen-4-ol. Focusing on the development of alternative weed control strategies, lavender essential oils containing high concentrations of terpinen-4-ol, lavandulol or linalyl acetate could be useful for the production of natural herbicides. These essential oil components combined with selected oregano or clove essential oil components, increase phytotoxicity and weed control due to the synergistic effect observed when in mixture.

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Section: Discussionmentioning

confidence: 99%

Herbicidal potential of lavender (Lavandula angustifolia Mill.) essential oil components on bristly foxtail (Setaria verticillata (L.) P. Beauv.): Comparison with carvacrol, carvone, thymol and eugenol

Koiou

Vasilakoglou

Dhima

2020

Arch biol sci (Beogr)

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“…Bioassay data were analyzed over repetition time by using a factorial approach (essential oil by essential oil concentration). The phytotoxic dose-response effects of essential oils on weed germination, root length, and fresh weight were also assessed by the whole-range assessment method (An et al 2005). Inhibition index was calculated by Equation 1 as in Liu et al (2007).…”

Section: Methodsmentioning

confidence: 99%

Competitiveness and Essential Oil Phytotoxicity of Seven Annual Aromatic Plants

et al. 2010

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Crops that effectively compete with weeds may be more suitable in low-input agricultural systems. A 2-yr field experiment was conducted in northern Greece to assess the competitiveness of seven annual aromatic plants (anise, sweet fennel, sweet basil, dill, coriander, parsley, and lacy phacelia) on common purslane, common lambsquarters, black nightshade, and barnyardgrass. The phytotoxicity of the essential oils produced by these aromatic plants was also determined using a perlite-based bioassay with barnyardgrass. Separation, identification, and quantification of the volatile compounds of these essential oils were also performed. After the harvest of the aromatic plants (8 wk after planting), the greatest weed fresh weight reduction (94 to 100%) was recorded in lacy phacelia, whereas the least (0 to 30%) was recorded in parsley. Lacy phacelia and sweet fennel produced the greatest fresh biomass yield in weedy and weed-free treatments, whereas parsley, dill, and coriander produced the lowest. Biomass of sweet fennel and anise was reduced by only 9 to 11% by weed competition, whereas biomass of lacy phacelia was not significantly affected. The essential oils isolated from sweet fennel and sweet basil were the most phytotoxic on barnyardgrass, whereas those isolated from lacy phacelia and anise were the least phytotoxic. Conclusively, aromatic plants with great competitiveness such as lacy phacelia, anise, and sweet fennel provided great weed suppression and they could be cultivated with low inputs in herbicides. However, high competitiveness of aromatic plants may not always be correlated with high essential oil phytotoxicity.

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“…In the present investigation, similar results were obtained regarding the decrease in the dry weight of mung bean and jowar seedlings due to the lower to higher concentration treatment of leaf extracts of Alternanthera. This concentrationdependent increase or decrease in dry biomass may be attributed to the explanations given by An et al [50], Orr et al [51] recorded the potential allelopathic influence of two invasive weed species like Lolium and Elaeganus on native species of Acer, Populus, and Platanus. They found reduction and delay in seedling emergence, root and leaf biomass in treated plants.…”

Section: Resultsmentioning

confidence: 92%

Phytoconstituents, Pigments , G.C.M.S. Analysis and Allelopathy Effect of Alternanthera Ficoidea (L.) P. Beauv

Patil

Kore²

2017

Asian J Pharm Clin Res

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Objective: The aim was to investigate phytoconstituents, composition of pigments, gas chromatography mass spectrometry (GCMS) and allelopathy of Alternanthera ficoidea (L.) P. Beauv. Methods:Qualitative phytochemical analysis was carried out by the method of Paech and Tracey using five different solvent systems (D.W., ether, chloroform, ethanol, and methanol). Methanol leaf extract of this plant was analyzed using GCMS. Chlorophylls, carotenoid, and polyphenols were estimated by following standard methods. Allelopathy effect was studied using leaf leachets on seeds of jowar and mung. Result and Conclusion:Investigation of above parameters in A. ficoidea showed presence of large amount of pharmaceutically important phytochemicals like tannins, saponins, phytols, carotenoids, xanthophylls and polyphenols. It indicates that this weed can be used in herbal medicines and dietary supplements. Since this weed is showing allelopathy effect it should be eradicated from fields before it spreads and occupies the place meant for crop plants.

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Whole-Range Assessment: A Simple Method for Analysing Allelopathic Dose-Response Data

Abstract: ᮀ Based on the typical biological responses of an organism to allelochemicals (hormesis), concepts of whole-range assessment and inhibition index were developed for improved analysis of allelopathic data. Examples of their application

Cited by 22 publications

References 23 publications

Herbicidal potential of lavender (Lavandula angustifolia Mill.) essential oil components on bristly foxtail (Setaria verticillata (L.) P. Beauv.): Comparison with carvacrol, carvone, thymol and eugenol

Herbicidal potential of lavender (Lavandula angustifolia Mill.) essential oil components on bristly foxtail (Setaria verticillata (L.) P. Beauv.): Comparison with carvacrol, carvone, thymol and eugenol

Competitiveness and Essential Oil Phytotoxicity of Seven Annual Aromatic Plants

Phytoconstituents, Pigments , G.C.M.S. Analysis and Allelopathy Effect of Alternanthera Ficoidea (L.) P. Beauv

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