Allelopathic potential of &amp;lt;i&amp;gt;Artemisia biennis&amp;lt;/i&amp;gt; (biennial wormwood)

Kegode, George O.; Ciernia, Mark G.; Vlieger, David B.

doi:10.4236/as.2012.34070

Cited by 4 publications

(6 citation statements)

References 15 publications

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“…The lowest germination percentages (< 10%) were recorded when barley seeds were treated with 2.5-3.5 % of A. annua water extract (Fig 1). Allelopathic action of leaf tissues and extract fractions were previously reported in A. annua and other Artemisia species ( Passim and Rodrigues, 1999;Delabays et al, 2008;Panamanik et al, 2008;Kegode et al, 2012;Jessing et al, 2014). The observed reduction in barley germination under treatment of A. annua water extract could be attributed to the presence of water-soluble inhibitory allelochemicals.…”

Section: Resultsmentioning

confidence: 67%

Germination and seedling growth of barley as affected by Artemisia annua water extract

Salman¹,

Salameh²,

Abu-Romman³

2017

Plant Omics

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Laboratory and greenhouse pot experiments were conducted to assess the allelopathic effects of Artemisia annua water extract on germination and growth of barley. Lower concentrations of A. annua water extract (0.5 and 1.0 %) did not affect the germination of barley seeds. However, higher concentrations (1.5-3.5 %) resulted in significant reductions in the germination percentage. Seedling growth of barley was also affected by A. annua water extract. Both shoot and root lengths were negatively affected by A. annua water extract and the degree of inhibition was concentration dependent. When barley seedlings were subjected to 0.5% extract concentration, shoot length was inhibited by 6% while root length showed 18.5% inhibition over control seedlings. The lowest shoot and root lengths were recorded at 3.0 and 3.5 % water extract. At 0.5 % extract concentration, shoot and root fresh and dry weights were significantly unaffected compared with the control. Shoot fresh weight was significantly unaltered when seedlings were treated with 1.0 % extract. However, at the same concentration root fresh weight, shoot dry weight, and root dry weight were inhibited by 44.7, 33.3, and 40 %, respectively. The present results confirmed that root growth (length and weight) was more sensitive to A. annua water extract than shoot growth. The present results also indicated the presence of water soluble allelochemicals in A. annua that are able to inhibit growth of barley.

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Section: Resultsmentioning

confidence: 67%

Germination and seedling growth of barley as affected by Artemisia annua water extract

Salman¹,

Salameh²,

Abu-Romman³

2017

Plant Omics

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“…When competing with sunflower in southern Manitoba, A. biennis was found to reduce yields up to 46% when germinating at the same time as the crop in densities of about 800 plants m (2 (Lewis 2012). Part of the competitive effect from A. biennis is probably due to allelopathy (Kegode et al 2012) (see Section 7c). There are no reports of human or animal poisoning by A. biennis though milk can be tainted when it is eaten by dairy cows (Alex 1992).…”

Section: Description and Account Of Variationmentioning

confidence: 99%

“…However, once biologically active compounds have been isolated and characterized, they may not be phytotoxic to plants as was determined for arteminisin isolated from A. annua (Lydon et al 1997). The potential use of secondary phytotoxins produced by A. biennis for weed management has not been explored (Kegode et al 2012).…”

Section: Description and Account Of Variationmentioning

confidence: 99%

“…In greenhouse studies, soil amended with A. biennis root biomass caused 88% reduction in fresh weight in Solanum melanocerasum All. (garden huckleberry) (Kegode et al 2012). Furthermore, allelopathy effects increased with plant size, the maximum phytotoxic effect occurring when plants were 45 cm tall (Ciernia and Kegode 2003;Kegode and Ciernia 2005).…”

Section: Growth and Developmentmentioning

confidence: 99%

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The Biology of Canadian Weeds. 152.Artemisia biennisWilld.

KegodeG.

DarbyshireS.

2013

Can. J. Plant Sci.

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Kegode, G. O. and Darbyshire, S. J. 2013. The Biology of Canadian Weeds. 152. Artemisia biennis Willd. Can. J. Plant Sci. 93: 643–658. Artemisia biennis Willd. (biennial wormwood, armoise bisannuelle) is an annual or biennial species native to western North America. Closely related species occur in Eurasia and South America which are sometimes considered conspecific. Spreading elsewhere in North America occurred along transportation corridors soon after European settlement and it has since been introduced to other parts of the world. As an economically important weed its impact appears to be increasing, possibly due in part to reduced tillage practices. The most significantly affected regions are the Prairie Provinces of Canada and the northern Great Plains in the United States. Many cereal, oilseed, pulse, vegetable and forage crops are affected where it can reduce yields at relatively low densities. A wide range of soil and moisture conditions are tolerated and it can form dense populations in disturbed habitats where its competitive ability is enhanced by prolific seed production, indeterminate seedling emergence and allelopathic effects. Although tolerant of a number of herbicides in different classes, good control can be achieved through careful timing and split application strategies.

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“…The allelopathic properties are shown by plants of the genus Artemisia vulgaris L., which by colonization of the area, reduce diversity of the native flora [31]. The plant is a common weed [26], both in the fields and on roadsides or unused land [32]. Composition analyses of mugwort extracts have shown that they are rich in phenolic compounds, including chlorogenic acid derivatives, flavonoids, phenolic acid and ligands [33].…”

Section: Introductionmentioning

confidence: 99%

Extracts from Artemisia vulgaris L. in Potato Cultivation—Preliminary Research on Biostimulating Effect

et al. 2020

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Nowadays the size and quality of potato yields is very important aspect in agriculture, due to the continuous climate change. Plants exposed to abiotic stress need new protection tools such as plant biostimulant. The new definition of this product include plant extracts as novel biostimulants. The aim of the study was to assess whether the extracts from Artemisia vulgaris L. would act as classic biostimulants, by affecting metabolic pathways. Since these are pilot studies, the content of chlorophyll, carotenoids, proline and polyphenols was chosen as indicators of changes in plants. The experiment was carried out under controlled environmental conditions on a very early cultivar Irys. The obtained results showed that foliar treatment of plants with extracts from Artemisia vulgaris L. had a positive effect on the increase of chlorophyll a and chlorophyll b content and its total concentration in potato leaves. The highest increase in the total chlorophyll content, amounting to 26.27% on average, was observed in plants sprayed with macerate at the dose of 0.6 mL·plant-1. Additionally, an increase in the carotenoids content was observed in plants sprayed with macerate. The study demonstrated that the polyphenols level was largely dependent on the method of extracts production and the dose of the tested extracts. Macerate and infusion applied in a higher dose induced in plants the changes in the concentration of polyphenols. The overall evaluation of the effectiveness of the tested preparations showed higher effectiveness of the macerate for all the analyzed traits.

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Allelopathic potential of <i>Artemisia biennis</i> (biennial wormwood)

Cited by 4 publications

References 15 publications

Germination and seedling growth of barley as affected by Artemisia annua water extract

Germination and seedling growth of barley as affected by Artemisia annua water extract

The Biology of Canadian Weeds. 152.Artemisia biennisWilld.

Extracts from Artemisia vulgaris L. in Potato Cultivation—Preliminary Research on Biostimulating Effect

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