Allelopathy of Ricinus communis and light spectrum variation decrease emergence and growth of Cyperus rotundus




Bioherbicide, Castor bean, Light quality, Sedge, Weed.


Weeds negatively influence agricultural production. However, those losses depend on weed specie, its time of emergence, and period of interference on agricultural crops. Synthetic herbicides are commonly used to control these plants species; however, they may cause damage to the environment, human beings and animals health, and this problem justify the need to develop alternative bioherbicides. To evaluate the allelopathic potential of Ricinus communis (Castor bean) and light spectrum variation on the emergence and growth of Cyperus rotundus L., a trial was carried out in a protected environment with 15% of brightness reduction at the Center for Agricultural and Environmental Sciences at the Paraíba State University. Four aqueous extract concentrations of R. communis leaves were tested (0, 5, 10, and 15%) and four light spectrums variations (white, purple, blue, and red lights). Variables such as emergence, length, dry matter accumulation and growth rates of shoots and root of C. rotundus seedlings were assessed. Data were analyzed by normality test, analysis of variance, polynomial regression, and averages test. Soot and root emergence, length, and dry matter accumulation of C. rotundus seedlings were reduced due to the allelopathy caused by R. communis aqueous extract leaves (15% concentration) and under purple or red light spectrum radiation.


Download data is not yet available.


BARBOSA, J.C. and Maldonado Júnior, W. Experimentação Agronômica & AgroEstat - Sistema para Análises Estatísticas de Ensaios Agronômicos. São Paulo: Funep, 2015.

BORELLA, J. and PASTORINI, L.H. Influência alelopática de Phytolacca dioica L. na germinação e crescimento inicial de tomate e picão-preto. Revista Biotemas. 2009, 22(3), 67-75.

CARVALHO, M.S.S., et al. Allelopathic potential and phytochemical screening of ethanolic extracts from five species of Amaranthus spp. in the plant model Lactuca sativa. Scientia Horticulturae. 2019, 245(2), 90-98.

CAVALCANTE, J.A., et al. Extrato aquoso de bulbos de tiririca sobre a germinação e crescimento inicial de plântulas de rabanete. Revista Verde de Agroecologia e Desenvolvimento Sustentável. 2018, 13(1), 39-44.

CORDELL, G.A. Fifty years of alkaloid biosynthesis in Phytochemistry. Phytochemistry. 2013, 91(7), 29-51.

DAYAN, F.E., CANTRELL, C.L. and DUKE, S.O. Natural products in crop protection. Bioorganic & Medicinal Chemistry. 2009, 17(12), 4022-4034.

DEMOTES-MAINARD, S., et al. Plant responses to red and far-red lights, applications in horticulture. Environmental and Experimental Botany. 2016, 121(1), 4-21.

EDMOND, J.B. and DRAPALA, W.J. The effects of temperature, sand and soil, and acetone on germination of okra seeds. Proceedings of the American Society for Horticultural Science. 1958, 71(12), 428-434.

EPRINTSEV, A.T., et al. Regulation of expression of the mitochondrial and peroxisomal forms of citrate synthase in maize during germination and in response to light. Plant Science. 2018, 272(7), 157-163.

FERRAZ, R.L.S., et al. Atributos qualitativos de sementes de algodoeiro hidrocondicionadas em soluções de silício. Científica. 2017, 45(1), 85-94.

FERRAZ, R.L.S., et al. Estimation of productivity gain by irrigated and fertilized forage palm plants (Opuntia fícus indica (L.) Mill. and Nopalea cochenillifera (L.) Salm-Dyck): systematic review and meta-analysis. Australian Journal of Crop Science. 2019, 13(11), 1873-1882.

FUENTES-GANDARA, F., et al. Selective fractionation and isolation of allelopathic compounds from Helianthus annuus L. leaves by means of high-pressure techniques. Journal of Supercritical Fluids. 2019, 143(1), 32-41.

FUKUDA, N. 2019. Plant growth and physiological responses to light conditions. In: M. Anpo, H. Fukuda and T. Wada, eds. Plant Factory Using Artificial Light: Adapting to Environmental Disruption and Clues to Agricultural Innovation. Amsterdam: Elsevier, pp. 71-77.

GUO, L., et al. Genomic Clues for Crop–Weed Interactions and Evolution. Trends in Plant Science. 2018, 23(12), 1102-1115.

HOFFMANN, C.E.F., et al. Atividade alelopática de Nerium oleander L. e Dieffenbachia picta Schott em sementes de Lactuca Sativa L. e Bidens pilosa L. Revista de Ciências Agroveterinárias. 2007, 6(1), 11-21.

HONG, N.H., et al. Screening for allelopathic potential of higher plants from Southeast Asia. Crop Protection. 2003, 22(6), 829-836.

HUSSAIN, S., et al. Interference and economic threshold level of little seed canary grass in wheat under different sowing times. Environmental Science and Pollution Research. 2015, 22(8), 441-449.

IQBAL, J., et al. Herbicidal potential of dryland plants on growth and tuber sproutingin purple nutsedge (Cyperus rotundus). Planta Daninha. 2018, 36(12), 1-8.

ISLAM, A.K.M.M. and KATO-NOGUCHI, H. Allelopathic prospective of Ricinus communis and Jatropha curcas for bio-control of weeds. Acta Agriculturae Scandinavica, Section B — Soil & Plant Science. 2013, 63(11), 731-739.

KAPOOR, S., et al. Influence of light quality on growth, secondary metabolites production and antioxidant activity in callus culture of Rhodiola imbricata Edgew. Journal of Photochemistry and Photobiology B: Biology. 2018, 183(6), 258-265.

KONG, Y., et al. Blue light associated with low phytochrome activity can promote elongation growth as shade-avoidance response: A comparison with red light in four bedding plant species. Environmental and Experimental Botany. 2018, 155(11), 345-359.

LABOURIAU, L.G. and VALADARES, M.B. On the germination of seeds of Calotropis procera (Ait.) Ait.f. Anais da Academia Brasileira de Ciências. 1976, 48, 174-186.

LONG, J., et al. Strongly enhanced luminescence of Sr4Al14O25:Mn4+ phosphor by co-doping B3+ and Na+ ions with red emission for plant growth LEDs. RSC Advances. 2018, 8(3), 1469-1476.

MOROTA, F.K., et al. Sistemas de manejo de plantas daninhas utilizando o novo herbicida pyroxasulfone visando ao controle químico de gramíneas em soja. Revista Brasileira de Herbicidas. 2018, 17(2), 1-10.

NAEEM, M., et al. Trianthema portulacastrum and cyperus rotundus interference in maize and application of allelopathic crop extracts for their effective management. Planta Daninha. 2016, 34(2), 209-218.

OKA, Y. and YAMAMOTO, K., 2019. Photoreceptor-Mediated Plant Development. In: M. Anpo, H. Fukuda and T. Wada, eds. Plant Factory Using Artificial Light: Adapting to Environmental Disruption and Clues to Agricultural Innovation, Amsterdam: Elsevier, pp. 111-117.

RICCI, M.S.F., et al. Produção da cenoura e efeito na fertilidade do solo e nutrição decorrente da solarização do solo para controle da tiririca. Bragantia. 2006, 65(4), 607-614.

RIGON, C.A.G., et al. Potencial alelopático de extratos foliares de mamona sobre a germinação e o desenvolvimento de picão-preto e soja. Revista Tecnologia & Ciência Agropecuária. 2014, 8(2), 33-39.

ROMDHANE, S., et al. Assessment of the ecotoxicological impact of natural and synthetic β triketone herbicides on the diversity and activity of the soil bacterial community using omic approaches. Science of the Total Environment. 2019, 651(2) 241-249.

SAADAOUI, E., et al. Allelopathic effects of aqueous extracts of Ricinus communis L. on the germination of six cultivated species. International Journal of Plant & Soil Science. 2015, 7(4), 220-227.

SANTANA, E.R., et al. Biological activity and photostability of biflorin micellar nanostructures. Molecules. 2015, 20(5), 8595-8604.

SILVA, E.S., et al. Cenário das pesquisas sobre alelopatia no Brasil e seu potencial como estratégia na diminuição da utilização de pesticidas que provocam poluição ambiental: uma revisão integrativa. Diversitas Journal. 2018, 3(2), 442-454.

SILVA, A.E., et al. Microclimate changes, photomorphogenesis, and water consumption by Moringa oleifera cuttings under light spectrum variations and exogenous phytohormones concentrations. Australian Journal of Crop Science. 2020, 14(5), 1-9.

SILVEIRA, H.R.O., et al. Alelopatia e homeopatia no manejo da tiririca (Cyperus rotundus). Planta Daninha. 2010, 28(3), 499-506.

SILVEIRA, P.F., MAIA, S.S.S. and COELHO, M.F.B. Potencial alelopático do extrato aquoso de folhas de Mimosa tenuiflora (Willd.) Poir. NA germinação de Lactuca sativa L. Bioscience Journal. 2012, 28(3), 472-477.

WANG, H., et al. Effects of light quality on CO2 assimilation, chlorophyll-fluorescence quenching, expression of Calvin cycle genes and carbohydrate accumulation in Cucumis sativus. Journal of Photochemistry and Photobiology B: Biology. 2009, 96(1), 30-37.

XIMENEZ, G.R., et al. Phytotoxic potential of the crude extract and leaf fractions of Machaerium hirtum on the initial growth of Euphorbia heterophylla and Ipomoea grandifolia. Planta Daninha. 2019, 37(7), e019180433.

YAMASHITA, O.M., GUIMARÃES, S.C. and CAVENAGHI, A.L. Germinação das sementes de Conyza canadensis e Conyza bonariensis em função da qualidade de luz. Planta Daninha. 2011, 29(4), 737-743.

ZIMDAHL, R.L. 2018. Herbicides and the Environment. In: R.L. Zimdahl, ed. Fundamentals of Weed Science. London: Academic Press, pp 557-590.




How to Cite

FERRAZ, R.L. de S., COSTA, P. da S., DIAS, G.F., SILVA, J.R. da, VIÉGAS, P.R.A., MEDEIROS, A. de S., DANTAS NETO, J. and MELO, A.S. de, 2023. Allelopathy of Ricinus communis and light spectrum variation decrease emergence and growth of Cyperus rotundus. Bioscience Journal [online], vol. 39, pp. e39023. [Accessed13 April 2024]. DOI 10.14393/BJ-v39n0a2023-63062. Available from:



Agricultural Sciences