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Rice Tungro Disease (RTD) - Introduction and History

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1. Among the virus diseases that affect Rice, tungro disease is widely prevalent, particularly, in the North Eastern and Eastern coastal region of Peninsular India.

2. The word ‘tungro’ in tagallo, a language in The Philippines, means degenerated growth, causing leaf discoloration which varies from light green to orange yellow leaves, reduction in tiller number and stunted plant growth.

3. Rice tungro virus disease is very destructive in several rice growing areas of the country. During the last four decades tungro is increasingly noticed in several rice growing states in India (Krishnaveni et al 2009).

4. The loss from epidemics in farmers fields (1984, 1988 and 1990) caused severe quantitative and monetary losses ( Muralidharan et al 2003).

History of Tungro Disease

1. In India, the occurrence of Rice tungro disease was first reported from West Bengal in 1966.

2. Two years later, in 1969, the disease appeared extensively in eastern Uttar Pradesh, West Bengal and northern Bihar inflicting heavy loss.

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Photo Courtesy: 
Dr.Krishnaveni DRR
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