Survey and Identification of Pathogenic Diseases Affecting Gerbera Plants
Paper Details
Survey and Identification of Pathogenic Diseases Affecting Gerbera Plants
Abstract
This comprehensive study aimed to investigate the causal organisms, disease incidence and pathogenicity of microorganisms affecting gerbera plants in the Dhaka zone of Bangladesh. Nine sites of Agargaon, Savar, Gazipur, and Narayanganj were surveyed to identify the diseases based on symptomological studies. Diseases caused by fungi including cercospora leaf spot (Cercospora sp.), alternaria leaf spot (Alternaria alternata), sclerotinia wilt (Sclerotinia sclerotiorum), anthracnose (Colletotrichum capsici), powdery mildew (Erysiphe sp.), blight (Curvulariageniculata), graymold (Botrytis sp.), stem rot (Fusarium oxysporum), and viral diseases such as leaf curl (Leaf curl virus) and mosaic (Mosaic virus) were identified. Among all the identified diseases, the highest disease incidence (66.67%, Gazipur) was exhibitedby alternaria leaf spot and the lowest disease incidence (5.56%, Narayanganj) was shown by graymold. The rate of reduction of plant height due to cercospora leaf spot, alternaria leaf spot, blight, anthracnose, graymold, sclerotinia wilt, stem rot, powdery mildew, mosaic, and leaf curl diseases was 28.1%, 28.42%, 12.47%, 12.69%, 28.36%, 30.67%, 19.14%, 28.08%, 12.89%, and 22.06%, respectively. The rate of reduction of other plant parts of gerbera was also recorded. To confirm pathogenicity, Curvulariageniculata, and Erysiphe sp. were tested on healthy gerbera plants following Koch’s postulates. The plants exhibited the disease symptoms of Curvulariageniculata and Erysiphe sp. after 9 and 6 days of inoculation, respectively, while the control plants remained symptom-free. Thus, the pathogenicity of Curvulariageniculata and Erysiphe sp. was confirmed.
Baker KF, Davis LH. 1950. Some diseases of ornamental plants in California caused by species of Alternaria and Stemphylium. Plant Disease Report 34, 403–413.
Bhat HA, Ahmed K, Ahanger RA, Qazi NA, Dar NA, Ganie SA. 2013. Status and symptomatology of Alternaria leaf blight (Alternaria alternata) of Gerbera (Gerbera jamesonii) in Kashmir Valley. African Journal of Agricultural Research 8, 819–823. http://dx.doi.org/10.5897/AJAR12.1766
Booth C. 1971. The genus Fusarium. Commonwealth Mycological Institute, Kew, Surrey, England, p 237.
Borah M, Rajkhowa M, Ali S. 2019. Occurrence of diseases in floricultural crops in and around Jorhat, Assam. International Journal of Economic Plants 6, 54–63. https://doi.org/10.23910/ijep/2019.6.2.0294
Bose TK, Yadav LP. 1989. Commercial flower. Naya Prakash, Calcutta-70006, India, p 601–621.
Brishco MEI, Hausbeck MK. 2018. Diseases of Gerbera. In: McGovern R, Elmer W (Eds) Handbook of florists crops diseases. Handbook of Plant Disease Management. Springer, Cham, 533–559 p.
Ellis MB. 1960. Dematiaceous Hyphomycetes. CMI, Kew Surrey, England, 608 p.
Farhood S, Hadian S. 2012. First report of Alternaria leaf spot on Gerbera (Gerbera jamesonii L.) in north of Iran. Advanced Environmental Biology 6, 621-624.
Garibaldi A, Minuto A, Prados-ligero AM, Melero-Vara JM, Lodovica M. 2007. Fusarium wilt of Gerbera in Spain in soilless crops. Plant Disease 91, 638–638. http://dx.doi.org/10.1094/PDIS-91-5-0638C
Garibaldi A, Minuto A, Uchimura MS, Gullino ML. 2008. Fusarium wilt of Gerbera caused by a Fusarium sp. in Brazil. Plant Disease 92, 655. http://dx.doi.org/10.1094/PDIS-92-4-0655B
Greer CA, Webster RK. 2001. Occurrence, distribution, epidemiology, cultivar reaction and management of rice blast disease in California. Plant Disease 85, 1096–1102. http://dx.doi.org/10.1094/PDIS.2001.85.10.1096
Kaewruang W, Sivasithamparam K, Hardy GE. 1988. Phytophthora cryptogea, an additional pathogen of Gerbera in Western Australia. Australian Plant Pathology 17, 67–68. http://dx.doi.org/10.1071/APP9880067
Kanwar JK, Kumar S. 2008. In vitro propagation of Gerbera–areview. Horticultural Science 35, 35–44. http://dx.doi.org/10.17221/651-HORTSCI
Kitajima EW. 1988. Present status of the studies on ornamental plant virus diseases in Brazil. VII International Symposium on Virus Diseases of Ornamental Plants 234, 451–456. https://doi.org/10.17660/ActaHortic.1988.234.54
Mathur SB, Kongsdal O. 2003. Common laboratory seed health testing methods for detecting fungi.Danish Govt. Institute of Seed Pathology for Developing Countries, Copenhagen, Denmark. ISTA, Switzerland, 425 p.
Minuto A, Gullino ML, Garibaldi A. 2007.Gerbera jamesonii, Osteospermum sp. and Argyranthemum frutescens: New Hosts of Fusarium oxysporum f. sp. chrysanthemi. Journal of Phytopathology 155, 373–376. https://doi.org/10.1111/j.1439-0434.2007.01248.x
Mohanty S. 2014. Studies on foliar fungal pathogens of Gerbera, MS thesis. The Orissa University of Agricultural and Technology, Bhubaneswar, India. Mou NH. 2012. Profitability of flower production and marketing systems of Bangladesh. Bangladesh Journal of Agricultural Research 37, 77–95.
Nagrale DT, Gaikwad AP, Sharma L. 2013. Morphological and cultural characterization of Alternaria alternata (Fr.) Keissler blight of Gerbera (Gerbera jamesonii Bolus H ex. Hook JD). Journal of Applied and Natural Science 5, 171–178. https://doi.org/10.31018/jans.v5i1.302
Nayeb M, Perveen S, Akhtar N. 2019.Alternaria gaisen: a new pathogen causing leaf spot of Gerbera jamesonii from Pakistan. Mycopathology 16, 7–10.Saikia S, Talukdar MC. 2017. Response of gerbera cv. antibes to different organic growing media under naturally ventilated polyhouse. Journal of Ornamental Horticulture 20, 147–152. http://dx.doi.org/10.5958/2249-880X.2017.00009.3
Shamala G, Janardhana GR. 2015. Prevalence and severity of leaf blight disease of Chrysanthemum in southern regions of Karnataka and in-vitro fungicidal effect on Alternaria alternata. International Journal of Life Science 9, 38–45.
Sultana N. 2003. Floriculture exports from Bangladesh. A paper presented in International Floriculture Conference on 6 November 2003, BARC, Farmgate, Dhaka.
Sutton BC. 1980. The coelomycetes. Fungi imperfecti with pycnidia, acervuli and stromata. Commonwealth Mycological Institute. Kew, UK, Transactions of the British Mycological Society 696 p.
Swagatika M, Nibedita N, Beura SK. 2015. Colletotrichum capsici-a new report of leaf spot disease of Gerbera (Gerbera jamesonii Bolus) from Odisha. Journal of Mycopathological Research 53, 267–270.
Verma N, Singh AK, Singh L, Kulshrestha S, Raikhy G, Hallan V, Ram R, Zaidi AA. 2004. Occurrence of cucumber mosaic virus in Gerbera jamesonii in India. Plant Disease 88, 1161. https://doi.org/10.1094/PDIS.2004.88.10.1161C
Verma VS, Singh S. 1980. A mosaic disease of Gerbera. Gartenbauwissenschaft 45, 61–62.
Yeasmin F, Shamsi S. 2013. Phylloplane mycoflora of Gerbera spp. and their pathogenic potentiality. Journal of Bangladesh Academy of Sciences 37, 211–217. http://dx.doi.org/10.3329/jbas.v37i2.17562
Sanzida Hoque, Mahbuba Khanam, Nazmoon Naher Tonu, 2023. Survey and Identification of Pathogenic Diseases Affecting Gerbera Plants. Int. J. Biosci., 23(5), 60-70.
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