Allelopathy and Agricultural Sustainability: Implication in weed management and crop protection—an overview

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Crop plants have defined roles in agricultural production and feeding the world. They are affected by several environmental and biological stresses, which range from soil salinity, drought, and climate change to exposure to diverse plant pathogens. These stresses pose risk to agricultural sustainability. To avoid the increasing biotic and abiotic pressure on crop plants, agrochemicals are extensively used in agriculture for attaining desirable yield and production of crops. However, the use of agrochemicals is also challenging the integrity of ecosystems. Thus, to maintain the integrity of ecosystem, sustainable measures for elevated crop production are required. Allelopathy, a process of chemical interactions between plants and other organisms, could be used in the management of several biotic and abiotic stresses if the basic mechanisms of the phenomena and plants with allelopathic potentials are known. Allelopathy has a promising future for its application in agriculture for natural weed management, improving soil health and suppressing plant diseases. The aim of this review is to discuss the importance of allelopathy in agriculture and its role in sustainability with a specific focus on weed management and crop protection.

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  • Akula R. & Ravishankar G. A. (2011). Influence of abiotic stress signals on secondary metabolites in plants. Plant Signaling and Behavior 6(11) 1720-1731.

  • Alam M. A. Hakim M. A. Juraimi A. S. Rafii M. Y. Hasan M. M. & Aslani F. (2018). Potential allelopathic effects of rice plant aqueous extracts on germination and seedling growth of some rice field common weeds. Italian Journal of Agronomy 134-140.

  • Al-Sherif E. Hegazy A. K. Gomaa N. H. & Hassan M. O. (2013). Allelopathic effect of black mustard tissues and root exudates on some crops and weeds. Planta Daninha 31(1) 11-19.

  • Anwar W. Haider M. S. Aslam M. Shahbaz M. Khan S. N. & Bibi A. (2015). Assessment of antifungal potentials of some aqueous plant extracts and fungicides against Alternaria alternata. Journal of Agricultural Research 53(1) 75-82.

  • Arora K. Batish D. R. Singh H. P. & Kohli R. K. (2015). Allelopathic potential of the essential oil of wild marigold (Tagetes minuta L.) against some invasive weeds. Journal of Environmental and Agricultural Sciences 3 56-60.

  • Baličević R. Ravlić M. & Živković T. (2015). Allelopathic effect of invasive species giant goldenrod (Solidago gigantea Ait.) on crops and weeds. Herbologia 15(1) 19-29.

  • Baličević R. Ravlić M. Knežević M. Marić K. & Mikić I. (2014). Effect of marigold (Calendula officinalis L.) co-germination extracts and residues on weed species hoary cress (Cardaria draba (L.) Desv.). Herbologia 14(1) 23-31.

  • Baziramakenga R. Leroux G. D. Simard R. R. & Nadeau P. (1997). Allelopathic effects of phenolic acids on nucleic acid and protein levels in soybean seedlings. Canadian Journal of Botany 75(3) 445-450.

  • Bertin C. Yang X. & Weston L. A. (2003). The role of root exudates and allelochemicals in the rhizosphere. Plant and Soil 256(1) 67-83.

  • Bhadoria P. B. S. (2011). Allelopathy: a natural way towards weed management. American Journal of Experimental Agriculture 1(1) 7-20.

  • Boretti A. & Rosa L. (2019). Reassessing the projections of the World Water Development Report. npj Clean Water 2(1) 1-6.

  • Borovaya S. Lukyanchuk L. Manyakhin A. & Zorikova O. (2019). Effect of Reynoutria japonica extract upon germination and upon resistance of its seeds against phytopathogenic fungi Triticum aestivum L. Hordeum vulgare L. and Glycine max (L.) Merr. Organic Agriculture 1-7.

  • Boukaew S. Prasertsan P. & Sattayasamitsathit S. (2017). Evaluation of antifungal activity of essential oils against aflatoxigenic Aspergillus flavus and their allelopathic activity from fumigation to protect maize seeds during storage. Industrial Crops and Products 97 558-566.

  • Bourgaud F. Gravot A. Milesi S. & Gontier E. (2001). Production of plant secondary metabolites: a historical perspective. Plant Science 161(5) 839-851.

  • Ch K. Sturm D. J. Varnholt D. Walker F. & Gerhards R. (2016). Allelopathic effects and weed suppressive ability of cover crops. Plant Soil and Environment 62(2) 60-66.

  • Cheng F. & Cheng Z. (2015). Research progress on the use of plant allelopathy in agriculture and the physiological and ecological mechanisms of allelopathy. Frontiers in Plant Science 6 1020.

  • Einhellig F. A. (2018). Allelopathy—a natural protection allelochemicals. In Handbook of natural pesticides: methods (pp. 161-200). CRC Press.

  • El-Mergawi R. A. Ibrahim G. & Al-Humaid A. (2018). Screening for Antifungal Potential of Plant Extracts of Fifteen Plant Species Against Four Pathogenic Fungi Species. Gesunde Pflanzen 70(4) 217-224.

  • Farooq M. Jabran K. Cheema Z. A. Wahid A. & Siddique K. H. (2011). The role of allelopathy in agricultural pest management. Pest Management Science 67(5) 493-506.

  • Gniazdowska A. & Bogatek R. (2005). Allelopathic interactions between plants. Multi-site action of allelochemicals. Acta Physiologiae Plantarum 27(3) 395-407.

  • Gomaa N. H. Hassan M. O. Fahmy G. M. González L. Hammouda O. & Atteya A. M. (2014). Allelopathic effects of Sonchus oleraceus L. on the germination and seedling growth of crop and weed species. Acta Botanica Brasilica 28(3) 408-416.

  • Gulzar A. & Siddiqui M. B. (2014). Allelopathic effect of aqueous extracts of different part of Eclipta alba (L.) Hassk. on some crop and weed plants. Journal of Agricultural Extension and Rural Development 6(1) 55-60.

  • Hamad H. M. & Alaila A. K. (2019). Allelopathic Activity of Some Medicinal Plants against Erwinia carotovora. Journal of Agriculture and Ecology Research International 1-7.

  • Hao W. Y. Ren L. X. Ran W. & Shen Q. R. (2010). Allelopathic effects of root exudates from watermelon and rice plants on Fusarium oxysporum f. sp. niveum. Plant and Soil 336(1-2) 485-497.

  • Hasegawa T. Kato Y. Okabe A. Itoi C. Ooshiro A. Kawaide H. & Natsume M. (2019). Effect of Secondary Metabolites of Tomato (Solanum lycopersicum) on Chemotaxis of Ralstonia solanacearum Pathogen of Bacterial Wilt Disease. Journal of Agricultural and Food Chemistry 67(7) 1807-1813.

  • Hierro J. L. & Callaway R. M. (2003). Allelopathy and exotic plant invasion. Plant and Soil 256(1) 29-39.

  • Hussain N. Abbasi T. & Abbasi S. A. (2017). Toxic and allelopathic ipomoea yields plant-friendly organic fertilizer. Journal of Cleaner Production 148 826-835.

  • Isik D. Mennan H. Cam M. Tursun N. & Arslan M. (2016). Allelopathic potential of some essential oil bearing plant extracts on Common Lambsquarters (Chenopodium album L.). Revista De Chimie.(Bucharest) 67(3) 455-459.

  • Jang S. J. & Kuk Y. I. (2018). Effects of different fractions of Rheum palmatum root extract and anthraquinone compounds on fungicidal insecticidal and herbicidal activities. Journal of Plant Diseases and Protection 125(5) 451-460.

  • Javaid A. & Iqbal D. (2014). Management of collar rot of bell pepper (Capsicum annuum L.) by extracts and dry biomass of Coronopus didymus shoot. Biological Agriculture and Horticulture 30(3) 164-172.

  • Javaid A. & Rehman H. A. (2011). Antifungal activity of leaf extracts of some medicinal trees against Macrophomina phaseolina. Journal of Medicinal Plants Research 5(13) 2868-2872.

  • Khaliq A. Matloob A. Cheema Z. A. & Farooq M. (2011). Allelopathic activity of crop residue incorporation alone or mixed against rice and its associated grass weed jungle rice (Echinochloa colona [L.] Link). Chilean Journal of Agricultural Research 71(3) 418.

  • Khaliq A. Matloob A. Khan M. B. & Tanveer A. (2013). Differential suppression of rice weeds by allelopathic plant aqueous extracts. Planta Daninha 31(1) 21-28.

  • Khan E. A. Khakwani A. A. & Ghazanfarullah A. (2015). Effects of allelopathic chemicals extracted from various plant leaves on weed control and wheat crop productivity. Pakistan Journal of Botany 47(2) 735-740.

  • Khan S. Shinwari M. I. Haq A. Ali K. W. Rana T. Badshah M. & Khan S. A. (2018). Fourier-transform infrared spectroscopy analysis and antifungal activity of methanolic extracts of Medicago parviflora Solanum nigrum Melilotus alba and Melilotus indicus on soil-borne phytopathogenic fungi. Pakistan Journal of Botany 50(4) 1591-1598.

  • Kong C. Hu F. Xu X. Zhang M. & Liang W. (2005). Volatile allelo-chemicals in the Ageratum conyzoides intercropped citrus orchard and their effects on mites Amblyseius newsami and Panonychus citri. Journal of Chemical Ecology 31(9) 2193-2203.

  • Lam-Gutiérrez A. Ayora-Talavera T. R. Garrido-Ramírez E. R. Gutiérrez-Miceli F. A. Montes-Molina J. A. Lagunas-Rivera S. & Ruíz-Valdiviezo V. M. (2019). Phytochemical profile of methanolic extracts from Chilca (Baccharis glutinosa) roots and its activity against Aspergillus ochraceus and Fusarium moniliforme. Journal of Environmental Biology 40(3) 302-308.

  • Latif S. Chiapusio G. & Weston L. A. (2017). Allelopathy and the role of allelochemicals in plant defence. In Advances in botanical research (Vol. 82 pp. 19-54). Academic Press.

  • Li X. G. Zhang T. L. Wang X. X. Hua K. Zhao L. & Han Z. M. (2013). The composition of root exudates from two different resistant peanut cultivars and their effects on the growth of soil-borne pathogen. International Journal of Biological Sciences 9(2) 164-173.

  • Ling N. Zhang W. Wang D. Mao J. Huang Q. Guo S. & Shen Q. (2013). Root exudates from grafted-root watermelon showed a certain contribution in inhibiting Fusarium oxysporum f. sp. niveum. PLoS One 8(5) e63383.

  • Majeed A. & Muhammad Z. (2019). Salinity: A Major Agricultural Problem—Causes Impacts on Crop Productivity and Management Strategies. In Plant Abiotic Stress Tolerance (pp. 83-99). Springer Cham.

  • Majeed A. Chaudhry Z. & Muhammad Z. (2012). Allelopathic assessment of fresh aqueous extracts of Chenopodium album L. for growth and yield of wheat (Triticum aestivum L.). Pakistan Journal of Botany 44(1) 165-167.

  • Majeed A. Muhammad Z. & Ahmad H. (2018). Plant growth promoting bacteria: role in soil improvement abiotic and biotic stress management of crops. Plant Cell Reports 37(12) 1599-1609.

  • Masum S. M. Hossain M. A. Akamine H. Sakagami J. I. Ishii T. Gima S. & Bowmik P. C. (2018). Isolation and characterization of allelopathic compounds from the indigenous rice variety ‘Boterswar’ and their biological activity against Echinochloa crusgalli L. Allelopathy Journal 43 31-42.

  • Molina A. Reigosa M. J. & Carballeira A. (1991). Release of allelo-chemical agents from litter throughfall and topsoil in plantations of Eucalyptus globulus Labill in Spain. Journal of Chemical Ecology 17(1) 147-160.

  • Nikneshan P. Karimmojeni H. Moghanibashi M. & al Sadat Hosseini N. (2011). Allelopathic potential of sunflower on weed management in safflower and wheat. Australian Journal of Crop Science 5(11) 1434-1440.

  • Puig C. G. Gonçalves R. F. Valentão P. Andrade P. B. Reigosa M. J. & Pedrol N. (2018). The consistency between phytotoxic effects and the dynamics of allelochemicals release from eucalyptus globulus leaves used as bioherbicide green manure. Journal of Chemical Ecology 44(7-8) 658-670.

  • Rinez A. Daami-Remadi M. Ladhari A. Omezzine F. Rinez I. & Haouala R. (2013). Antifungal activity of Datura metel L. organic and aqueous extracts on some pathogenic and antagonistic fungi. African Journal of Microbiology Research 7(16) 1605-1612.

  • Salim H. A. Abdalbaki A. A. Khalid H. A. Eshak H. S. Reski B. & Alwan W. K. (2017). Allelopathic effects for three plants extracts on weeds of wheat (Triticum aestivum L.). Journal of Medicinal Herbs and Ethnomedicine 31-33.

  • Shinwari Z. K. Tanveer F. & Iqrar I. (2019). Role of Microbes in Plant Health Disease Management and Abiotic Stress Management. In Microbiome in Plant Health and Disease (pp. 231-250). Springer Singapore.

  • Singh A. Singh D. & Singh N. B. (2009). Allelochemical stress produced by aqueous leachate of Nicotiana plumbaginifolia Viv. Plant Growth Regulation 58(2) 163-171.

  • Sisodia S. & Siddiqui M. B. (2010). Allelopathic effect by aqueous extracts of different parts of Croton bonplandianum Baill. on some crop and weed plants. Journal of Agricultural Extension and Rural Development 2(1) 022-028.

  • Siyar S. Majeed A. Muhammad Z. Ali H. & Inayat N. (2019). Allelopathic effect of aqueous extracts of three weed species on the growth and leaf chlorophyll content of bread wheat. Acta Ecologica Sinica 39(1) 63-68.

  • Tazart Z. Douma M. Tebaa L. & Loudiki M. (2018). Use of macro-phytes allelopathy in the biocontrol of harmful Microcystis aeruginosa blooms. Water Supply 19(1) 245-253.

  • Tej R. Rodríguez-Mallol C. Rodríguez-Arcos R. Karray-Bouraoui N. & Molinero-Ruiz L. (2018). Inhibitory effect of Lycium europaeum extracts on phytopathogenic soil-borne fungi and the reduction of late wilt in maize. European Journal of Plant Pathology 152(1) 249-265.

  • Üstüner T. Kordali S. & Bozhüyük A. U. (2018). Herbicidal and Fungicidal Effects of Cuminum cyminum Mentha longifolia and Allium sativum Essential Oils on Some Weeds and Fung Tamer Üstüner Saban Kordali and Ayse Usanmaz Bozhüyük. Records of Natural Products 12(6) 619-629.

  • Willis R. J. (2007). The history of allelopathy. Springer Science & Business Media.

  • Zhang Y. Gu M. Shi K. Zhou Y. H. & Yu J. Q. (2010). Effects of aqueous root extracts and hydrophobic root exudates of cucumber (Cucumis sativus L.) on nuclei DNA content and expression of cell cycle-related genes in cucumber radicles. Plant and Soil 327(1-2) 455-463.

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