Phytotoxic effects of aqueous extracts from Mimosa pigra L. on barnyardgrass (Echinochloa crus-galli)


Do Tan Khang , Huynh Thi Nhung , Nguyen Pham Anh Thi , Tran Thanh Men , Nguyen Trong Tuan , Nguyen Van Ay ,

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Volume 3 - June 2019 (06)


Mimosa pigra has been reported as an anvasive plant containing mimosine which has phytotoxic activity on weeds. In this study, the inhibitory effects of aqueous extracts from various plant parts of M. pigra were evaluated. The mimosine content was spectrophotometrically measured.  The phytotoxicity of the aquaous extracts was tested on radish, lettuce, and barnyardgrass. The results showed that mimosine presented in this plant varied from 24 to 53 mg/g DW, and the highest mimosine content was found in leaves (p<0.05) with 53 mg/g DW. Most of the extracts had inhibitory activity at 10% concentration while its stimulatory effect was shown at the concentration of 2.5 and 5%. Particularly, the aquaous extracts from leaves, flowers, fruits, and seeds reduced the root length of radish up to 77.0, 80.0, 88.5 and 72.4%, respectively (p>0.05). These extracts at 10% concentration also caused a significant reduction in shoot length and fresh weight of radish. At the concentration of 10%, leaf, flower, and seed extract significantly inhibited all growth parameters including root length, shoot length, fresh weight and dry weight of lettuce while stem and fruit caused a dramatic decrease in root length, shoot length and fresh weight. The seed extract inhibited 100% of lettuce growth at 10% concentration. The extracts of M. pigra strongly suppressed the shoot elongation and biomass of barnyardgrass. The study confirmed the allelopathic activity of M. pigra, and it could be tested in the rice field for applying in green agriculture.


Mimosa pigra L.; barnyardgrass; allelopathy; phytotoxicity; aqueous extract


                         i.            Ahmad, H., S. Sehgal, A. Mishra, and R. Gupta, (2012). Mimosa pudica L. (Laajvanti): An overview. Pharmacognosy reviews, 6: 115–124

      ii.            Galinato, M., K. Moody and C. Piggin, 1999. Upland Rice Weeds of South and Southeast Asi. International Rice Research Institute, Los Baños, Philippines

    iii.            Koodkaew, I. and R. Rottasa, 2017. Allelopathic effects of giant sensitive plant (Mimosa pigra) leaf powder on germination and growth of popping pod and purslane. Int. J. Agric. Biol. Sci., 18: 1113?1118

     iv.            Okonkwo, C.J., O.U. Njoku, T.J.N. Okonkwo, O.E. Afieroho and P. Proksch, 2016. Two new acylated flavonol glycosides from Mimosa pigra L. leaves sub-family Mimosoideae, Future Journal of Pharmaceutical Sciences, 2: 71-75

       v.            Ottis, B., and R .Talbert, 2007. Barnyardgrass (Echinochloa crus-galli) Control and Rice Density Effects on Rice Yield Components. Weed Technology. 21:110-118

     vi.            Sahid, I., M.S. Ishak, F.S. Bajrai, K.M. Jansar and N.Y. Yusoff, 2017. Quantification and herbicidal activity of mimosine from Leucaena leucocephala (Lam.) de Wit. Transactions on Science and Technology, 4: 62-67

   vii.            Singh, H.P., D.R. Batish, R.K. Kohli, 1999. Allelopathic effect of Leucaena leucocephala on Zea mays. Journal of Tropical Forest Science, 11: 801-808.

 viii.            Williams, R.D., R.E. Hoagland and M. Mallik, 2000. Phytotoxicity of mimosine and albizziin on weeds and crops. Proceedings of Southern Weed Science Society. 53: 204

     ix.            Xuan, T.D., A.A. Elzaawely, F. Deba, M. Fukuta and S. Tawata, 2006. Mimosine in Leucaena as a potent bio-herbicide. Agronomy for Sustainable Development, 26: 89-97

       x.            Xuan, T.D., S. Tawata and T.D. Khanh, 2013. Herbicidal activity of mimosine and its derivatives, Chapter 15, in Agricultural and Biological Researchs “Herbicides – Advances in Research, Edt. Andrew J. Price and Jessica A. Kelton. IntechOpen

     xi.            Yang, X., D.Q. Fuller, X. Huan, L. Perry, Q. Li, Z. Li, J. Zhang, Z. Ma, Y. Zhuang, L. Jiang, Y. Ge and H. Lu, 2015. Barnyard grasses were processed with rice around 10000 years ago. Sci Rep. 5:16251.

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