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Ansar, Mohammad
- Occurrence of Alternaria brassicae in Seed-Producing Cauliflower and its Role of Seed Infection
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Authors
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1 Department of Plant Pathology, Bihar Agricultural College, Bihar Agricultural University, Sabour, Bhagalpur (Bihar), IN
1 Department of Plant Pathology, Bihar Agricultural College, Bihar Agricultural University, Sabour, Bhagalpur (Bihar), IN
Source
International Journal of Plant Sciences, Vol 13, No 1 (2018), Pagination: 67-70Abstract
The dark spot pathogen of cauliflower, Alternaria brassicae, is a common problem in east and north-east Bihar. Occurrence of this disease is repeatedly observed in crucifers of this region. The disease is more severe in those areas where seed production of crucifers is practiced. Therefore, we designed this experiment including the natural occurrence of dark spot disease and the survivability of the pathogen in the seed. In our location, the disease is started to appear in January. However, the peak period of this disease on foliage was middle February to middle March. This experiment also envisaged that A. brassicae can actively survive for a period of two months on the seed of cauliflower. The seeds obtained from late matured pods had significantly higher seed infection (P < 0.05) compared to seeds from early mature pods. This paper renders the evidence for development of new initiative to manage this disease such as development of physical or chemical seed treatment method that sustains effectively for two months and development of variety with early and synchronous podding, and other programmes may be encouraged. Management strategies of this pathosystem are briefly discussed.Keywords
Alternaria brassicae, Cauliflower, Dark Spot, Seed Infection.
References
- Conn, K.L., Tiwari, J.P. and Awasthi, R.P. (1990). A disease assessment key for Alternaria blackspot in rapeseed and mustard. Canadian Plant Disease Survey, 70 : 19-22.
- Hammond-Kosack, K.E. and Jones, J.D.G. (1997). Plant disease resistance genes. Ann. Rev. Plant Physiol. & Plant Mole. Biol., 48 : 575-607.
- Humpherson-Jones, F.M. (1992). Epidemiology and control of dark leaf spot of brassicas. In: Chelkowski, J., Visconti, A., eds. Alternaria: Biology, plant diseases and metabolites. Amsterdam, the Netherlands: Elsevier, pp. 267-288.
- Kohl, J., van Tongeren, C.A.M., Groenenboom-de Haas, B.H., van Hoof, R.A., Driessen, R. and van der Heijden, L. (2010). Epidemiology of dark leaf spot caused by Alternaria brassicicola and A. brassicae in organic seed production of cauliflower. Plant Pathol., 59 : 358-367.
- Maude, R.B. and Humpherson-Jones, F.M. (1980). Studies on the seedborne phases of dark leaf spot (Alternaria brassicicola) and grey leaf spot (Alternaria brassicae) of brassicas. Ann. Appl. Biol., 95 : 311-319.
- McDonald, M.C. (1959). Gray leaf spot of rape in Manitoba. Canadian J. Plant Sci., 39 : 409-418.
- Seidle, E., Rude, S. and Petrie, A. (1995). The effect of Alternaria black spot of canola on seed quality and seed yield and studies on disease control. Agriculture and Agri-Food Canada Saskatoon, Canada, pp. 41.
- Smith, I.M., Dunez, J., Lelliott, R.A., Phillips, D.H. and Archer, S.A. (1988). European handbook of plant diseases. Blackwell Scientific Publications, Oxford, UK.