Management of soil-borne diseases of organic vegetables

• Autorzy: Shafique H.A. , Sultana V. , Ehteshamul-Haque S. , Athar M.
• Języki publikacji: EN

Abstrakty

EN

With the rising awareness of the adverse effects of chemical pesticides, people are looking for organically grown vegetables. Consumers are increasingly choosing organic foods due to the perception that they are healthier than those conventionally grown. Vegetable crops are vulnerable to a range of pathogenic organisms that reduce yield by killing the plant or damaging the product, thus making it unmarketable. Soil-borne diseases are among the major factors contributing to low yields of organic produce. Apart from chemical pesticides there are several methods that can be used to protect crops from soil-borne pathogens. These include the introduction of biocontrol agents against soil-borne plant pathogens, plants with therapeutic effects and organic soil amendments that stimulate antagonistic activities of microorganisms to soil-borne diseases. The decomposition of organic matter in soil also results in the accumulation of specific compounds that may be antifungal or nematicidal. With the growing interest in organic vegetables, it is necessary to find non chemical means of plant disease control. This review describes the impact of soil-borne diseases on organic vegetables and methods used for their control.

Słowa kluczowe

EN

management; soil-borne disease; vegetable; organic agriculture; control; biological antagonist; organic manure; seaweed

• Wydawca: -
• Czasopismo: Journal of Plant Protection Research
• Rocznik: 2016
• Tom: 56
• Numer: 3
• Opis fizyczny: p.221-230,fig.,ref.

Twórcy

autor

Shafique H.A.

• Agricultural Biotechnology and Phytopathology Laboratory, Department of Botany, University of Karachi, Karachi 75270, Pakistan

autor

Sultana V.

• Biotechnology and Drug Development Laboratory, Department of Biochemistry, University of Karachi, Karachi 75270, Pakistan

autor

Ehteshamul-Haque S.

• Agricultural Biotechnology and Phytopathology Laboratory, Department of Botany, University of Karachi, Karachi 75270, Pakistan

autor

Athar M.

• Post Harvest Technology and Food Biochemistry Laboratory, Department of Food Science and Technology, University of Karachi, Karachi 75270, Pakistan
• Pest Detection and Emergency Projects, California Department of Food and Agriculture, 3288 Meadowview Road, Sacramento, 95832 CA, USA

Bibliografia

• Aarset B., Beckmann S., Bigne E., Beveridge M., Bjorndal T., Bunting J., McDonagh P., Mariojouls C., Muir J., Prothero A., Reisch L., Smith A., Tveteras R., Young J. 2004. The European consumers’ understanding and perceptions of the ‘‘organic” food regime: The case of aquaculture. British Food Journal 106 (2): 93–105.
• Abawi G.S., Widmer T.L. 2000. Impact of soil health management practices on soilborne pathogens, nematodes and root diseases of vegetable crops. Applied Soil Ecology 15 (1): 37–47.
• Adam M., Heuer H., Hallmann J. 2014. Bacterial antagonists of fungal pathogens also control root-knot nematodes by induced systemic resistance of tomato plants. PLoS ONE 9 (2): e90402. DOI: 10.1371/journal.pone.0090402
• Afzal S., Tariq S., Sultana V., Ara J., Ehteshamul-Haque S. 2013. Managing the root diseases of okra with endo-root plant growth promoting Pseudomonas and Trichoderma viride associated with healthy okra roots. Pakistan Journal of Botany 45 (4):1455–1460.
• Agrios G.N. 2005. Plant Pathology. Academic Press, New York, USA, 952 pp.
• Al-Askar A.A.A. 2012. In vitro antifungal activity of three Saudi plants extracts against some phytopathogenic fungi. Journal of Plant Protection Research 52 (4): 458–462.
• Ara J., Sultana V., Qasim R., Ehteshamul-Haque S., Ahmad V.U. 2005. Biological activity of Spatoglossum asperum: a brown alga. Phytotherapy Research 19 (7): 618–623.
• Bailey K.L., Lazarovits G. 2003. Suppressing soil-borne diseases with residue management and organic amendments. Soil and Tillage Research 72 (2): 169–180.
• Bakker P.A.H.M., Doornbos R.F., Zamioudis C., Berendsen R.L., Pieterse C.M.J. 2013. Induced systemic resistance and the rhizosphere microbiome. The Plant Pathology Journal 29 (2): 136–143.
• Ball B.C., Bingham I., Rees R.M., Watson C.A., Litterick A. 2005. The role of crop rotations in determining soil structure and crop growth conditions. Canadian Journal of Soil Science 85 (5): 557–577
• Baloch G.N., Tariq S., Ehteshamul-Haque S., Athar M., Sultana V., Ara J. 2013. Management of root diseases of eggplant and watermelon with the application of asafoetida and seaweeds. Journal of Applied Botany and Food Quality 86: 138–142.
• Baysal-Gurel F., Gardener B.M., Miller S.A. 2012. Soilborne disease management in organic vegetable production. Available on: www.extension.org/pages/64951. [Accessed: February 28, 2016]
• Benson D.M., Grand L.F., Vernia C.S., Gottwald T.R. 2006. Temporal and spatial epidemiology of Phytophthora root rot in Fraser fir plantations. Plant Disease 90 (9): 1171–1180.
• Berta G., Sampo S., Gamalero E., Massa N., Lemanceau P. 2005. Suppression of Rhizoctonia root-rot of tomato by Glomus mossae BEG12 and Pseudomonas fluorescens A6RI is associated with their effect on the pathogen growth and on the root morphogenesis. European Journal of Plant Pathology 111 (3): 270–288.
• Bess V.H. 2000. Understanding compost tea. BioCycle 41 (10): 71–72.
• Blok W.J., Lamers J.G., Termorshuizen A.J., Bollen G.J. 2000. Control of soilborne plant pathogens by incorporating fresh organic amendments followed by tarping. Phytopathology 90 (3): 253–259.
• Bonanomi G., Antignani V., Pane C., Scala F. 2007. Suppression of soilborne fungal diseases with organic amendments. Journal of Plant Pathology 89 (3): 311–324.
• Bouamri R., Dalpé Y., Serrhini M.N., Bennani A. 2006. Arbuscular mycorrhizal fungi species associated with rhizosphere of Phoenix dactylifera L. in Morocco. African Journal of Biotechnology 5 (6): 510–516.
• Buyer J.S., Teasdale J.R., Roberts D.P., Zasada I.A., Maul J.E. 2010. Factors affecting soil microbial community structure in tomato cropping system. Soil Biology and Biochemistry 42 (5): 831–841.
• Cordier C., Gianinazzi S., Gianinazzi-Pearson V. 1996. Colonization patterns of root tissues by Phytophthora nicotianae var. parasitica related to reduced disease in mycorrhizal tomato. Plant and Soil 185 (2): 223–232.
• De Meyer G., Höfte M. 1997. Salicylic acid produced by rhizobacterium Pseudomonas aeruginosa 7NSK2 induced resistance to leaf infection by Botrytis cinerea on bean. Phytopathology 87 (6): 588–593.
• Dewes T., Hünsche E. 1998. Composition and microbial degradability in the soil of farmyard manure from ecologicallymanaged farms. Biological Agriculture and Horticulture 16 (3): 251–268.
• Doran J.W., Coleman D.C., Bezdicek D.F., Stewart B.A. 1994. Defining Soil Quality for a Sustainable Environment. Soil Science Society of America, Special Publications Number 35, Madison, WI, USA, 244 pp.
• Dowling D.N., O’Gara F. 1994. Metabolites of Pseudomonas involved in the biocontrol of plant disease. Trends in Biotechnology 12 (4): 133–141.
• Engindeniz S., Cosar G.O. 2013. An economic comparison on pesticide applications for processing and table tomatoes: a case study for Turkey. Journal of Plant Protection Research 53 (3): 230–237.
• Erwin D.C., Ribeiro O.K. 1996. Phytophthora Diseases Worldwide. The American Phytopathological Society Press, St. Paul, MN, USA, 562 pp.
• Filion M., St-Arnaud M., Jabaji-Hare S.H. 2003. Quantification of Fusarium solani f. sp. phaseoli in mycorrhizal bean plants and surrounding mycorrhizosphere soil using real-time polymerase chain reaction and direct isolations on selective media. Phytopathology 93 (2): 229–235.
• Fließach A., Mäder P. 2000. Microbial biomass and size-density fractions differ between soils of organic and conventional agricultural systems. Soil Biology and Biochemistry 32 (6): 757–768.
• Friedel J.K., Gabel D., Stahr K. 2001. Nitrogen pools and turnover in arable soils under different durations of organic farming. II: Source- and-sink function of the soil microbial biomass or competition with growing plants? Journal of Plant Nutrition and Soil Science 164 (4): 421–429.
• Garbeva P., van Veen J.A., van Elsas J.D. 2004. Microbial diversity in soil: selection of microbial populations by plant and soil type and implications for disease suppressiveness. Annual Review of Phytopathology 42: 243–270.
• Garcia I., Job D., Matringe M. 2000. Inhibition of p-hydroxyphenylpyruvate dioxygenase by the diketonitrile of isoxaflutole: a case of half-site reactivity. Biochemistry 39 (25): 7501–7507.
• Ghorbani R., Koocheki A., Jahan M., Asadi G.A. 2008. Impact of organic amendments and compost extracts on tomato production and storability in agroecological systems. Agronomy for Sustainable Development 28 (2): 307–311.
• Goel N., Paul P.K. 2015. Polyphenol oxidase and lysozyme mediate induction of systemic resistance in tomato, when a bioelicitor is used. Journal of Plant Protection Research 55 (4): 343–350.
• Golabi M.H., Marler T.E., Smith E., Cruz F., Lawrence J.H., Denney M.J. 2003. Use of compost as an alternative to synthetic fertilizers for crop production and agricultural sustainability for the island of Guam. Food and Fertilizer Technology Center, Taipei, Taiwan, R.O.C. Available on: http://www. fftc.agnet.org/library.php?func=view&id=20110808092915.[Accessed: February 17, 2016]
• Govindappa M., Lokesh S., Ravishankar Rai V., Rudra Naik V., Raju S.G. 2010. Induction of systemic resistance and management of safflower Macrophomina phaseolina root-rot disease by biocontrol agents. Archives of Phytopathology and Plant Protection 43 (1): 26–40.
• Harman G.E. 1996. Trichoderma for biocontrol of plant pathogens: from basic research to commercialized products. In: Proceedings of the Cornell Community Conference on Biological Control, Ithaca, NY, 11–13 April 1996.
• Hoitink H.A.J., Boehm M.J. 1999. Biocontrol within the context of soil microbial communities: a substrate-dependent phenomenon. Annual Review of Phytopathology 37: 427–446.
• Howell C.R. 2003. Mechanisms employed by Trichoderma species in the biological control of plant diseases: the history and evolution of current concepts. Plant Disease 87 (1): 4–10.
• Hulugalle N.R., Lal R., Ter Kuile C.H.H. 1986. Amelioration of soil physical properties by Mucuna after mechanized land clearing of a tropical rain forest. Soil Science 141 (3): 219–224.
• Hunter D., Foster M., McArthur J.O., Ojha R., Petocz P., Samman S. 2011. Evaluation of the micronutrient composition of plant foods produced by organic and conventional agricultural methods. Critical Reviews in Food Science and Nutrition 51 (6): 571–582.
• Ijaz S., Sadaqat H.A., Khan M.N. 2013. A review of the impact of charcoal rot (Macrophomina phaseolina) on sunflower. The Journal of Agricultural Science 151 (2): 222–227.
• Ilic S.B., Konstantinovic S.S., Todorovic Z.B., Lazic M.L., Veljkovic V.B., Jokovic N., Radovanovic B.C. 2007. Characterization and antimicrobial activity of the bioactive metabolites in streptomycete isolates. Microbiology 76 (4): 421–428.
• Jatala P., Manrique G., Gavilano L. 1990. Nematicidal efficiency of some fungal metabolites and their specificity in controlling plant parasitic nematodes. Fitopatología 25 (1): 13.
• Keane P.J. 1992. Diseases of pests and cocoa: an overview. p. 1–11. In: “Cocoa Pest and Disease Management in Southeast Asia and Australasia” (P.J. Keane, C.A.J. Putter, eds.). Food and Agriculture Organization of the United Nations, Rome, Italy, 223 pp.
• Keijer J., Korsman M.G., Dullemans A.M., Houterman P.M., De Bree J., Van Silfhout C.H. 1997. In vitro analysis of host plant specificity in Rhizoctonia solani. Plant Pathology 46 (5): 659–669.
• Khalil M.E.H., Allam A., Barakat A.T. 2012. Nematicidal activity of some biopesticides and microorganisms against rootknot nematode on tomato plants under greenhouse conditions. Journal of Plant Protection Research 52 (1): 47–52.
• Khan M.R., Altaf S., Mohiddin F.A., Khan U., Anwer A. 2009. Biological control of plant nematodes with phosphate solubilizing microorganisms. p. 395–426. In: “Phosphate Solubilizing Microbes for Crop Improvement” (M.S. Khan, A. Zaidi, eds.). Nova Science Publishers, New York, NY, USA, 451 pp.
• Khan S.N. 2007. Macrophomina phaseolina as causal agent or charcoal rot of sunflower. Mycopathology 5 (2): 111–118.
• Klonsky K. 2004. Organic agricultural production in California. p. 241–256. In: “California Agriculture: Dimensions and Issues” (J. Siebert, ed.). University of California, Giannini Foundation of Agricultural Economics, Division of Agriculture and Natural Resources, Berkeley, CA, USA, 304 pp.
• Kowsari M., Motallebi M., Zamani R.M. 2014. Construction of new GFP-tagged fusants for Trichoderma harzianum with enhanced biocontrol activity. Journal of Plant Protection Research 54 (2): 122–131.
• Ladygina N., Hedlund K. 2010. Plant species influence microbial diversity and carbon allocation in the rhizosphere. Soil Biology and Biochemistry 42 (2): 162–168.
• Larkin R.P., Griffin T.S. 2007. Control of soilborne potato diseases using Brassica green manures. Crop Protection 26 (7): 1067–1077.
• Latha P., Anand T., Ragupathi N., Prakasam V., Samiyappan R. 2009. Antimicrobial activity of plant extracts and induction of systemic resistance in tomato plants by mixtures of PGPR strains and Zimmu leaf extract against Alternaria solani. Biological Control 50 (2): 85–93.
• Liu R.J. 1995. Effect of vesicular-arbuscular mycorrhizal fungi on Verticillium wilt of cotton. Mycorrhiza 5 (4): 293–297.
• Loganathan M., Sible G.V., Maruthasalam S., Saravanakumar D., Raguchander T., Sivakumar M., Samiyappan R. 2010. Trichoderma and chitin mixture based bioformulation for the management of head rot (Sclerotinia sclerotiorum (Lib.) de Bary) – root-knot (Meloidogyne incognita Kofoid and White; Chitwood) complex diseases of cabbage. Archives of Phytopathology and Plant Protection 43 (10): 1011–1024.
• Mandal S., Mallick N., Mitra A. 2009. Salicylic acid-induced resistance to Fusarium oxysporum f. sp. lycopersici in tomato. Plant Physiology and Biochemistry 47 (7): 642–649.
• Mani A., Anandam R.J. 1989. Evolution of plant leveas, oil cakes and agro-industrial wastes as substrates for mass multiplication of the nematophagus fungus, Paecillomyces lilacinus. Journal of Biological Control 3 (3): 56–58.
• Mat-Atko J. 1992. Experiments with the preparation Bio-Algeen S-90 in hops. Chemelarstvi 65: 53.
• Mazzola M. 2004. Assessment and management of soil microbial community structure for disease suppression. Annual Review of Phytopathology 42 (1): 35–59.
• Meyer S.L.F., Roberts D.P., Chitwood D.J., Carta L.K., Lumsden R.D., Mao W. 2001. Application of Burkholderia cepacia and Trichoderma virens, alone and in combinations, against Meloidogyne incognita on bell pepper. Nematropica 31 (1): 75–86.
• Montesano M., Brader G., Palva E.T. 2003. Pathogen derived elicitors: searching for receptors in plants. Molecular Plant Pathology 4 (1): 73–79.
• Morsy E.M., Abdel-Kawi K.A., Khalil M.N.A. 2009. Efficiency of Trichoderma viride and Bacillus subtilis as biocontrol agents against Fusarium solani on tomato plants. Egyptian Journal of Phytopathology 37 (1): 47–57.
• Naraghi L., Heydari A., Rezaee S., Razavi M., Jahanifar H., Khaledi E.M. 2010. Biological control of tomato Verticillium wilt disease by Talaromyces flavus. Journal of Plant Protection Research 50 (3): 360–365.
• Nelson W.R., Van Staden J. 1985. 1-Aminocyclopropane-1-carboxylic acid in seaweed concentrate. Botanica Marina 28 (9): 415–417.
• Patel S.T., Anahosur K.H. 2001. Potential antagonism of Trichoderma harzianum against Fusarium spp. and Macrophomina phaseolina and Sclerotium rolfsii. Journal of Mycology and Plant Pathology 31: 365–366.
• Paull J. 2011. Organics Olympiad 2011: Global indices of leadership in organic agriculture. Journal of Social and Development Sciences 1 (4): 144–150.
• Perveen S., Ehteshamul-Haque S., Ghaffar A. 1998. Efficacy of Pseudomonas aeruginosa and Paecilomyces lilacinus in the control of root rot-root knot disease complex of some vegetables. Nematologia Mediterranea 26 (2): 209–212.
• Pfleger F.L., Linderman R.G. 2000. Mycorrhiza and Plant Growth. The American Phytopathological Society Press, St. Paul, MN, USA, 360 pp.
• Raaijimakers J.M., Vlami M., de Souza J.T. 2002. Antibiotic production by bacterial biocontrol agents. Antonie van Leeuwenkoek 81 (1–4): 537–547.
• Raaijimakers J.M., Weller D.M. 1998. Natural plant protection by 2,4-diacetylphloroglucinol producing Pseudomonas spp. in take-all decline soils. Molecular Plant-Microbe Interactions 11 (2): 144–152.
• Ramachandran S., Singh S.K., Larroche C., Soccol C.R., Pandey A. 2007. Oil cakes and their biotechnological applications – A review. Bioresource Technology 98 (10): 2000–2009.
• Raupach G.S., Kloepper J.W. 1998. Mixtures of plant growth promoting rhizobacteria enhance biological control of multiple cucumber pathogens. Phytopathology 88 (11): 1158–1164.
• Rodríguez-Kábana R., Estaún V., Pinochet J., Marfá O. 1995. Mixtures of olive pomace with different nitrogen sources for the control of Meloidogyne spp. on tomato. Supplement to the Journal of Nematology 27 (4S): 575–584.
• Russo V.M., Webber III C.L. 2007. Organic agricultural production in the United States: an old wheel being reinvented. The Americas Journal of Plant Science and Biotechnology 1 (1): 29–35.
• Saifullah M., Stephen M., Khattak B. 2007. Isolation of Trichoderma harzianum and in vitro screening for its effectiveness against root-knot nematodes (Meloidogyne sp.) from Swat, Pakistan. Pakistan Journal of Nematology 25 (2): 313–322.
• Schifferstein H.N.J., Ophuis P.A.M. 1998. Health-related determinants of organic food consumption in the Netherlands. Food Quality and Preference 9 (3): 119–133.
• Shafique H.A., Noreen R., Sultana V., Ara J., Ehteshamul-Haque S. 2015a. Effect of endophytic Pseudomonas aeruginosa and Trichoderma harzianum on soil-borne diseases, mycorrhizae and induction of systemic resistance in okra grown in soil amended with Vernonia anthelmintica (L.) seed’s powder. Pakistan Journal of Botany 47 (6): 2421–2426.
• Shafique H.A., Sultana V., Ara J., Ehteshamul-Haque S., Athar M. 2015b. Role of antagonistic microorganisms and organic amendment in stimulating the defense system of okra against root rotting fungi. Polish Journal of Microbiology 64 (2): 157–162.
• Sharon E., Bar-Eyal M., Chet I., Herrera-Estrella A., Kleifeld O., Spiegel Y. 2001. Biological control of the root-knot nematode Meloidogyne javanica by Trichoderma harzianum. Phytopathology 91 (7): 687–693.
• Siddiqui I.A., Ehteshamul-Haque S. 2001. Suppression of the root rot-root knot disease complex by Pseudomonas aeruginosa in tomato: The influence of inoculum density, nematode populations, moisture and other plant associated bacteria. Plant and Soil 237 (1): 81–89.
• Sikora R.A., Fernández E. 2005. Nematode parasites of vegetables. p. 319–392. In: “Plant Parasitic Nematodes in Subtropical and Tropical Agriculture.” 2nd ed. (M. Luc, R.A. Sikora, J. Bridge, eds.). CABI Publishing, Willingford, Oxfordshire, UK, 896 pp.
• Solanki R., Khanna M., Lal R. 2008. Bioactive compounds from marine actinomycetes. Indian Journal of Microbiology 48 (4): 410–431.
• Sood S.G. 2003. Chemotactic response of plant growth-promoting bacteria towards roots of vesicular-arbiscular mycorrhizal tomato plants. FEMS Microbiology Ecology 45 (3): 219–227.
• Soytong K., Kanokmadhakul S., Kukongviriyapa V., Isobe M. 2001. Application of Chaetomium species (Ketomium®) as a new broad spectrum biological fungicide for plant disease control: A review article. Fungal Diversity 7: 1–15.
• Stone A.G., Vallad G.E., Cooperband L.R., Rotenberg D., Darby H.M., James R.V., Stevenson W.R., Goodman R.M. 2003. The effect of organic amendments on soilborne and foliar diseases in field-grown snap bean and cucumber. Plant Disease 87 (9): 1037–1042.
• Sultana V., Baloch G.N., Ambreen, Ara J., Tariq M.R., Ehteshamul- Haque S. 2011a. Comparative efficacy of a red alga Solieria robusta, chemical fertilizers and pesticides in managing the root diseases and growth of soybean. Pakistan Journal of Botany 43 (1): 1–6.
• Sultana V., Baloch G.N., Ara J., Ehteshamul-Haque S., Tariq R.M., Athar M. 2011b. Seaweeds as an alternative to chemical pesticides for the management of root diseases of sunflower and tomato. Journal of Applied Botany and Food Quality 84 (2): 162–168.
• Szczechura W., Staniaszek M., Habdas H. 2013. Fusarium oxysporum f. sp. radicis-lycopersici – the cause of Fusarium crown and root rot in tomato cultivation. Journal of Plant Protection Research 53 (2): 172–178.
• Tariq A., Ara J., Sultana V., Ehteshamul-Haque S., Athar M. 2011. Antioxidant potential of seaweeds occurring at Karachi coast of Pakistan. Journal of Applied Botany and Food Quality 84 (2): 207–212.
• Tuitert G., Szczech M., Bollen G.J. 1998. Suppression of Rhizoctonia solani in potting mixtures amended with compost made from organic household waste. Phytopathology 88 (8): 764–773.
• van Bruggen A.H.C. 1995. Plant disease severity in high-input compared to reduced-input and organic farming systems. Plant Disease 79 (10): 976–984.
• Vicente M.R., Plasencia J. 2011. Salicylic acid beyond defense: its role in plant growth and development. Journal of Experimental Botany 62 (10): 3321–3338.
• Walters D.R., Fountaine J.M. 2009. Practical application of induced resistance to plant diseases: an appraisal of effectiveness under field conditions. The Journal of Agricultural Science 147 (05): 523–535.
• Welke S.E. 2005. The effect of compost extract on the yield of strawberries and the severity of Botrytis cinerea. Journal of Sustainable Agriculture 25 (1): 57–68.
• Weller D.M., Raaijimakers J.M., Gardener B.B.M., Thomashow L.S. 2002. Microbial populations responsible for specific soil suppressiveness to plant pathogens. Annual Review of Phytopathology 40: 309–348.
• Willer H., Yussefi M. 2004. The World of Organic Agriculture – Statistics and Emerging Trends 2004. International Federation of Organic Agriculture Movements, Bonn, Germany, 167 pp.
• Wu Y., Jenkins T., Blunden G., Whapham C., Hankins S.D. 1997. The role of betains in alkaline extracts of Ascophyllum nodosum in reduction of Meloidogyne javanica and M. incognita infestations of tomato plants. Fundamental and Applied Nematology 20 (2): 99–102.
• Yiridoe E.K., Bonti-Ankomah S., Martin R.C. 2007. Comparison of consumer perceptions and preference toward organic versus conventionally produced foods: A review and update of the literature. Renewable Agriculture and Food Systems 20 (04): 193–205.
• Youssef M.M.A., Lashein A.M.S. 2013. Effect of cabbage (Brassica oleracea) leaf residue as a biofumigant, on root knot nematode, Meloidogyne incognita infecting tomato. Journal of Plant Protection Research 53 (3): 271–274.
• Zhang X., Schmidt R.E. 2000. Hormone-containing products’ impact on antioxidant status of tall fescue and creeping bentgrass subjected to drought. Crop Science 40 (5): 1344–1349.