Author(s):

Avinash, K Bijendra and Shivani

Abstract: Ginger (Zingiber officinale Rosc.) is a high value cash crop being cultivated all across the world including India. India is the highest producer and exporter of ginger. In India it is cultivated in all states including Uttarakhand. In Uttarakhand, it is mainly grown by small and marginal farmers on which their livelihood depends and cultivated in almost all the districts of Uttarakhand. Although it is a high value cash crop but its productivity is very low and the reason seems to be continuous use of degenerated seed rhizomes which are prone to various diseases, insect-pests and nematodes. Among these, rhizome rot caused by multitude of pathogens is a complex and one of the major limiting factors in successful cultivation of ginger. During present investigation, in order to establish the etiology of disease, infected rhizomes showing symptoms of rhizome rot were collected from the ginger growing areas of Kumaon during crop season 2015 and brought to laboratory for isolation of pathogens. Fifteen isolates of Fusariumwere isolated on PDA, isolate no. 6 of Fusarium sp. (Kotabagh isolate) were proved to be pathogenic under glasshouse conditions. This isolate was sent to Indian Type Culture Collection, Division of Plant Pathology, Indian Agriculture Research Institute, New Delhi for further confirmation and identification up to species level which was identified as Fusarium acuminatum (Ellis and Everh.,). F. acuminatum has earlier been isolated from the ginger rhizome by Ingle et al. (2008) ^[2] but they have not proved the pathogenicity so it should be considered as first report from India.

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