Allelopathic potential of Bothriochloa laguroides var. laguroides (DC.) Herter (Poaceae: Andropogoneae)

Scrivanti, Lidia Raquel

doi:10.1016/j.flora.2009.12.005

Cited by 28 publications

(20 citation statements)

References 19 publications

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“…The germination process of both species was inhibited, showing concentration-dependent inhibitory effects. The same effect has been recorded for other species of donor plants (Povh et al 2007, Wandscheer & Pastorini 2008, Scrivanti 2010, Souza et al 2010.…”

Section: Resultssupporting

confidence: 78%

Allelopathic interference of Sapindus saponaria root and mature leaf aqueous extracts on diaspore germination and seedling growth of Lactuca sativa and Allium cepa

Grisi¹,

Gualtieri²,

Ranal³

et al. 2012

Braz. J. Bot.

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-(Allelopathic interference of Sapindus saponaria root and mature leaf aqueous extracts on diaspore germination and seedling growth of Lactuca sativa and Allium cepa). Sapindus saponaria (soapberry) is a species that presents a great diversity of chemical compounds, such as saponins; however, few studies have examined the allelopathic effect of this species. Therefore, this study provides an evaluation of the allelopathic potential of aqueous extracts of the roots and mature leaves of S. saponaria on the germination of diaspores and seedlings growth of lettuce (Lactuca sativa) and onion (Allium cepa). The aqueous extract was prepared in the proportion of 100 g of dry plant material in 1,000 mL of distilled water (a concentration of 10% w v -1 ), and diluted with distilled water to 7.5, 5.0 and 2.5% concentrations. The mature leaf extracts caused delay and decrease in the germination process of the lettuce and onion diaspores, with inhibitory effect concentration-dependent, while the root extracts showed no allelopathic effects on the germination process. Both extracts caused abnormalities and inhibited the growth of shoot and root seedlings.

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Section: Resultssupporting

confidence: 78%

Allelopathic interference of Sapindus saponaria root and mature leaf aqueous extracts on diaspore germination and seedling growth of Lactuca sativa and Allium cepa

Grisi¹,

Gualtieri²,

Ranal³

et al. 2012

Braz. J. Bot.

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“…This findings can be attributed to the higher concentration of water-soluble allelochemicals in A. biebersteinii leaves than in roots, stems and flowers, or to the variable composition of bioactive phytochemicals between plant tissues. Several studies have indicated that different parts of the same allelopathic plants might possess different phytotoxic effects on the growth and development of recipient plants [14,37]. In agreement with our results, Hu and Zhang [19] showed that the leaf extract of Chromolaena odorata exerted a more pronounced inhibitory effects on seed germination and seedling growth of different herbaceous species that root extract.…”

Section: Discussionsupporting

confidence: 92%

Differential allelopathic expression of different plant parts ofAchillea biebersteinii

Abu-Romman

2016

Acta Biologica Hungarica

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Achillea biebersteinii (Asteraceae) is a perennial medicinal plant and has a wide distributional range in the Mediterranean region. The present study investigated the inhibitory effects of different plant parts of A. biebersteinii on germination characteristics and seedling growth of wild barley (Hordeum spontaneum). Water extracts were prepared by incubating separately five grams of dried powder of roots, stems, leaves and flowers of A. biebersteinii in 100 ml of distilled water for 24 h and distilled water was used as the control. The water extracts from different plant parts of A. biebersteinii differed in their effects on the germination and seedling growth of wild barley. Water extracts prepared from leaves and flowers were more suppressive to germination of wild barley than root and stem extracts. The maximum inhibition in radical and plumule growth of germinating caryopses and in root and shoot growth of greenhouse-grown wild barley was recorded for leaf extract followed by flower extract. The lowest Chl a, Chl b and total chlorophyll and protein contents were resulted after exposure to leaf extracts. According to these results, the inhibitory effects of different A. biebersteinii plant parts can be arranged in the order: leaf > flower > stem > root.

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“…1). Lettuce cypselas are widely used in allelopathy tests and are known for their sensitivity to plant extracts, which have the potential not only to reduce germinability but also to slow mean germination rate and other germination process variables (Wandscheer & Pastorini 2008;Scrivanti 2010.…”

Section: Resultsmentioning

confidence: 99%

Phytotoxic activity of crude aqueous extracts and fractions of young leaves of Sapindus saponaria L. (Sapindaceae)

et al. 2013

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Th e aim of this study was to evaluate the phytotoxic potential of aqueous extract of young leaves of Sapindus saponaria L. (soapberry) on the diaspore germination and seedling growth Lactuca sativa L. (lettuce) and Allium cepa L. (onion), as well as to determine, by bioassay-guided fractioning, whether the fractionated extracts of those leaves are phytotoxic to Triticum aestivum L. (wheat) coleoptiles. Th e aqueous extract was prepared using 100 g of dried plant material dissolved in 1000 ml of distilled water, resulting in a concentration of 10.0%. Distilled water was added in order to obtain dilutions of 7.5%, 5.0%, and 2.5%. Th e extraction was carried out with young leaves (in powder form) and organic solvents of various polarities. We fractioned the ethyl acetate extract using column chromatography. Th e phytotoxic potential of the aqueous extract of young leaves S. saponaria varied according to the receiving species and the concentration-dependent inhibitory eff ect. Th e ethyl acetate extract, specifi cally fraction 6 (57-70), had the greatest inhibitory eff ect on the elongation of wheat coleoptiles, indicating that the compounds responsible for the phytotoxic eff ect reside within this fraction.

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Allelopathic potential of Bothriochloa laguroides var. laguroides (DC.) Herter (Poaceae: Andropogoneae)

Cited by 28 publications

References 19 publications

Allelopathic interference of Sapindus saponaria root and mature leaf aqueous extracts on diaspore germination and seedling growth of Lactuca sativa and Allium cepa

Allelopathic interference of Sapindus saponaria root and mature leaf aqueous extracts on diaspore germination and seedling growth of Lactuca sativa and Allium cepa

Differential allelopathic expression of different plant parts ofAchillea biebersteinii

Phytotoxic activity of crude aqueous extracts and fractions of young leaves of Sapindus saponaria L. (Sapindaceae)

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