Screening for allelopathic potential of higher plants from Southeast Asia

Hong, Nguyen Huu; Xuan, Tran Dang; Tsuzuki, Eiji; Terao, Hiromitsu; Matsuo, Mitsuhiro; Khanh, Tran Dang

doi:10.1016/s0261-2194(03)00051-6

Cited by 55 publications

(47 citation statements)

References 8 publications

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“…Our findings were supported by previous reports that demonstrated the allelopathic effects of many other trees such as Melia azedarach (Hong et al, 2003(Hong et al, , 2004, Azadirachta indica (Neem) (Al-Charchafchi et al, 2007;Ashrafi et al, 2008 ;Abdus Salam and Kato-Noguchi, 2010), Sesbania sesban (Mubarak et al, 2009), Acacia cyanophylla (El Ayeb et al, 2013), and more recently for six tree from South Africa (Sunmonu and Staden, 2014). For C. spinosum, to the best of our knowledge, findings that indicate about its allelopathic effects are not available.…”

Section: Discussionsupporting

confidence: 92%

Allelopathic activity of extracts of Citharexylum spinosum L. from Tunisia

Ayeb-Zakhama¹,

Harzallah‐Skhiri²

2016

J. Plant Breed. Crop Sci.

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Allelopathic potential of Citharexylum spinosum L. (Verbenaceae) an exotic tree introduced in Tunisia many years ago was evaluated. Organic extracts using hexane, ethyl acetate and methanol solvents together with aqueous extracts at different concentrations were prepared from different parts of the plant (roots, stems, leaves and flowers). Yields in the 12 organic extracts together with their phenol contents were reported. Leaves methanol extract showed the highest yield and amount in total phenols (6.43%; 617.93±1.12 mg gallic acid equivalent/100 g MS, respectively). All extracts were tested on germination and early growth of two crops: (Lactuca sativa L.) and (Triticum aestivum L.) and two weeds: (Peganum harmala L.) and (Silybum marianum L.). Twelve parameters were established and used to the principal components analysis (PCA) and the hierarchical clusters (HCA) analysis. Three groups of extracts were separated according to their allelopathic potentiality. Almost of organic extracts were totally opposed to seed germination of peganum and thistle.

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Section: Discussionsupporting

confidence: 92%

Allelopathic activity of extracts of Citharexylum spinosum L. from Tunisia

Ayeb-Zakhama¹,

Harzallah‐Skhiri²

2016

J. Plant Breed. Crop Sci.

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“…The use of allelopathy for weed management has received strong attention in recent times [3][4][5][6][7]. This is because phytotoxins are considered to be more environmental friendly as opposed to synthetic chemicals of which some have been shown to contaminate water and soil resources thereby constituting risk to human and animal health [8].…”

Section: Introductionmentioning

confidence: 99%

Potential of Aqueous Extracts from Parts of the Pepper Tree (Schinus molle L.) to Affect Emergence and Seedling Development of Wheat (Triticum sativa L.) and Weeds in a Manure Amended Soil~!2008-09-12~!2008-11-15~!2008-12-05~!

Materechera¹,

Hae²

2008

TOASJ

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Abstract:The allelopathic potential of aqueous extracts from fruits, leaves, roots and bark of the pepper tree (Schinus molle L.) were investigated on emergence and seedling development of wheat (Triticum sativa L.) and agricultural weeds. Different concentrations of the original extract (undiluted, 1:1, 1:3 and water, v/v) were applied to a soil amended with cattle manure in 2-litre pots. Extracts from all the tree parts significantly (p < 0.05) reduced seedling emergence, height and dry matter yields of wheat and weed seedlings compared to the control (water). The inhibitory effects on both wheat and weed seedlings were consistently in the order fruit=leaves >roots>bark. The inhibitory effects were however progressively reduced by diluting the original extracts suggesting that there was reduction in the concentration of the compounds inhibiting the emergence and development of seedlings.The weed population and species composition were negatively affected by tree extracts but improved with dilution of the extracts. It was observed that grass weed species were relatively more adversely affected by the inhibitory compounds in the extracts than broad leaf species at each level of extract dilution. The results confirm the presence of water-soluble compounds in the tissues of the pepper tree which can inhibit seedling emergence and growth of wheat and weed seedlings. It is concluded that the pepper tree posses allelopathic characteristics that may be explored for weed management in agriculture. Further investigations are recommended to elucidate the nature of the phytotoxin, formulation, mode of application and the appropriate economic way of exploiting this potential.

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“…Allelopathic potential of the mulberry has also been explored previously by Mughal (2000) and Hong et al (2003) on pulses and radish, respectively. Mughal (2000) evaluated inhibitory effects of mulberry leaf extract on pulses including peas, broad beans and lentils and reported suppression of germination and seedling growth.…”

Section: Resultsmentioning

confidence: 92%

Wild Oat (Avena Fatua L.) and Canary Grass (Phalaris Minor Ritz.) Management Through Allelopathy

Jabran¹,

Farooq²,

Hussain³

et al. 2010

Journal of Plant Protection Research

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Environmental contamination, herbicide resistance development among weeds and health concerns due to over and misuse of synthetic herbicides has led the researchers to focus on alternative weed management strategies. Allelochemicals extracted from various plant species can act as natural weed inhibitors. In this study, allelopathic extracts from four plant species sorghum [Sorghumwere tested for their potential to inhibit the most problematic wheat (Triticum aestivum L.) weeds wild oat (Avena fatua L.) and canary grass (Phalaris minor Ritz.). Data regarding time to start germination, time to 50% germination, mean germination time, final germination percentage, germination energy, root and shoot length, number of roots, number of leaves, and seedling fresh and dry weight was recorded for both the weeds, which showed that mulberry was the most inhibitory plant species while sorghum showed least allelopathic suppression against wild oat. Mulberry extracts resulted in a complete inhibition of the wild oat germination. The allelopathic potential for different plants against wild oat was in the order: mulberry > winter cherry > barnyard grass > sorghum.Mulberry, barnyard grass and winter cherry extracts resulted in a complete inhibition of canary grass. Sorghum however exhibited least suppressive or in some cases stimulatory effects on canary grass. Plants revealing strong allelopathic potential can be utilized to derive natural herbicides for weed control.

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Screening for allelopathic potential of higher plants from Southeast Asia

Cited by 55 publications

References 8 publications

Allelopathic activity of extracts of Citharexylum spinosum L. from Tunisia

Allelopathic activity of extracts of Citharexylum spinosum L. from Tunisia

Potential of Aqueous Extracts from Parts of the Pepper Tree (Schinus molle L.) to Affect Emergence and Seedling Development of Wheat (Triticum sativa L.) and Weeds in a Manure Amended Soil~!2008-09-12~!2008-11-15~!2008-12-05~!

Wild Oat (Avena Fatua L.) and Canary Grass (Phalaris Minor Ritz.) Management Through Allelopathy

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