The Nexus between Incidence and Severity of Chili Anthracnose (Colletotrichum capsici (Syd.) Bisby and Butler) on Chili in SNNPR, Ethiopia
Keywords:
Anthracnose, Chili, Incidence, i-s-Relationship, Severity.Abstract
The incidence-severity relationship for chili anthracnose, caused by Colletotrichum spp., was studied on ten released Chili/pepper genotypes to determine the feasibility of using disease incidence to estimate indirectly disease severity in order to establish the potential damage caused by this disease in southern region, Ethiopia. Data were statistically analyzed by regression. Anthracnose leaf incidence was consistently associated with leaf severity and their relationships can be estimated using the linear function across locations, crop seasons, and genotypes. Thus, the use of easily assessed incidence data had been recommended for determination of severity as well as epidemic comparisons, genotype and seasonal evaluation in chili anthracnose management. This study will pave the way for chili producing farmers for cheaper and efficient approach tailoring it for determination of economic threshold level and launch opportune management practices.
References
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[23]. Estrada, A.B., Dodd, J.C. & Jeffries, P. “Effect of humidity and temperature on conidial germination and appressorium development of two Philippine isolates of the mango anthracnose pathogen Colletotrichum gloeosporioides”. Plant Pathology, 49: 608-618. 2000.
[24]. Wiik, L. and Ewaldz, T. “Impact of temperature and precipitation on yield and plant diseases of winter wheat in southern Sweden 1983-2007”. Crop Protection. Volume: 28 Number: 11, pp 952-962. 2009.
[25]. Campbell, C.L., and Madden, L.V. “Special Report: sampling for disease assessments. Biological and cultural tests”, vol.4. APS Press, St. Paul , pp v-ix. 1989.
[2]. Freire, F.C.O., Cardoso, J.E., Dos Santos, A.A. & Viana, F.M.P. “Diseases of mango plants (Anacardium occidentale L.) in Brazil”. Crop Protection, 21: 489-494. 2002.
[3]. Cardoso, J.E., Felipe, E.M., Cavalcante, M. de J.B., Freire, F. das C.O. & Cavalcanti, J.J.V, “Rainfall index and disease progress of anthracnose and black mold on mango fruit plants (Anacardium occidentale)”. Summa Phytopathologica, 26:413-16. (2000).
[4]. Cardoso, J.E., Santos, A.A., Rossetti, A.G. & Vidal, J.C, “Relationship between incidence and severity of cashew gumosis in semiarid north-eastern Brazil”. Plant Pathology, 53:363-67. 2004.
[5]. Groth, J.V, Ozmon,EA, Busch RH, “Repeatability and relationship of incidence and severity measures of scab of wheat caused by Fusarium graminearum in inoculated nurseries”. Plant Disease. 83, 1033–8.1999.
[6]. Campbell, C.L., and Madden, L.V. “Introduction to Plant Disease Epidemiology”. John Wiley & Sons, New York. 1990.
[7]. Seem, R. C. “Disease incidence and severity relationships”. Annu.Rev. Phytopathol. 22:133-150. 1984.
[8]. Xu, X., and Madden, L. V. “Incidence and density relationships of powdery mildew on apple. Phytopathology”.2002. 92:1005-1014
[9]. Paul, P. A., El-Allaf, S.M., Lipps, P.E., and Madden, L.V. “Relationships between incidence and severity of Fusarium head blight on winter wheat in Ohio”. Phytopathology 95:1049-1060. 2005.
[10]. McRoberts, N., Hughes, G. & Madden, L.V, “The theoretical basis and practical application of relationships between different disease intensity measurements in plants”. Annals of applied Biology, 142:191-11. 2003.
[11]. Agrios, G.N, Plant Pathology. Fifth Edition. Elsevier Inc. 2005. Pp 952
[12]. Uaciquete, A. “Characterization, Epidemiology and control strategy for the anthracnose pathogen (Colletotrichum spp) on cashew (Anacardium occidentale L.) in Mozambique”. PhD thesis. Pretoria university, South Africa. 2013. Pp1-185
[13]. Siddiqui, Y., Meon, S., Ismail, R., Rahmani, M. and Ali, A. “Bio-efficiency of compost extract on the wet rot incidence, morphological and physiological growth of Okra (Abelmoschus esculentus (L.) Moench]”. Scientia Horticulturae 117:9-14. 2008.
[14]. Lee, H.B., Park, J.Y. & Jung, H.S. “Identification, growth and pathogenicity of Colletotrichum boninense causing leaf anthracnose on Japanese Spindle Tree”. Plant Pathology journal, 21: 27-32. 2005.
[15]. SAS Institute. Statistical analysis software, version 9.1. Cary, North Carolina, USA. 2003.
[16]. Alamdarloo R. M. and Aghajani, M.A. “Incidence-Severity Relationships for Sclerotinia Stem Rot of Canola”. J. Appl. Environ. Biol. Sci., 5(12S) 689-699. 2015.
[17]. Menge, D., Makobe, M.N., Shomari, S. & Tiedemann, V. “Effect of environmental conditions on the growth of Cryptosporiopsis spp. Causing leaf and fruit blight (Anacardium occidentale L.)”. International Journal of Advanced Research, 1:26-38. (2013a).
[18]. Menge, D., Makobe, M.N., Shomari, S. & Tiedemann, V, 2013b. “Effect of environmental conditions on the growth of Cryptosporiopsis spp. Causing leaf and fruit blight (Anacardium occidentale L.)”. Journal of Yeast and Fungal Research, 4:12-20
[19]. Sijaona, M.E.R. & Mansfield, J.W., “Variation in the response of chili genotypes to the targeted application of fungicide to flower panicles for control of disease”. Plant Pathology 50:224-248. 2001.
[20]. Sijaona, M.E.R., Reeder, R.H. & Waller, J.M. “Chili leaf and fruit blight-A new disease of chili in Tanzania caused by Cryptosporiopsis spp”. Plant Pathology, 55:576-576. 2005.
[21]. Lewis, F. & Ward, M. “Improving epidemiological data analysis through multivariate regression modeling: Emerging Themes in Epidemiology” 10:4. http://www.ete-online.com/content/10/1/4. December, 2013.
[22]. Lopez, A.M.Q. and Lucas, J.L. “Colletotrichum isolates related to anthracnose of chili in Brazil: Morphological and Molecular description using LSU and rDNA sequences”. Braz. Arch. Biol.Tecnol. 53:741-752. 2010.
[23]. Estrada, A.B., Dodd, J.C. & Jeffries, P. “Effect of humidity and temperature on conidial germination and appressorium development of two Philippine isolates of the mango anthracnose pathogen Colletotrichum gloeosporioides”. Plant Pathology, 49: 608-618. 2000.
[24]. Wiik, L. and Ewaldz, T. “Impact of temperature and precipitation on yield and plant diseases of winter wheat in southern Sweden 1983-2007”. Crop Protection. Volume: 28 Number: 11, pp 952-962. 2009.
[25]. Campbell, C.L., and Madden, L.V. “Special Report: sampling for disease assessments. Biological and cultural tests”, vol.4. APS Press, St. Paul , pp v-ix. 1989.
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Published
2017-06-17
How to Cite
Handiso, S., & Alemu, T. (2017). The Nexus between Incidence and Severity of Chili Anthracnose (Colletotrichum capsici (Syd.) Bisby and Butler) on Chili in SNNPR, Ethiopia. American Scientific Research Journal for Engineering, Technology, and Sciences, 32(1), 298–302. Retrieved from https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/3124
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