picture below shows a disease caused by bacteria in wheat plant explain the cause and symptoms of this disease
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Disease symptoms
The most common site for symptoms is on upper leaf blades, however, sheaths, glumes and awns may occasionally become infected and exhibit symptoms.
The pustules are circular or slightly elliptical, smaller than those of stem rust, usually do not coalesce, and contain masses of orange to orange-brown Urediospores.
Survival and spread
Pathogen over-summers in low and mid altitudes of Himalayas and Nilgiris. Primary infections develop from wind deposited urediospores in eastern Indo-gangetic plains in middle of January where it multiplies and moves westwards by March
Alternate host is Thalictrum sp.
Favourable conditions
Temperatures of 20-25° C with free moisture (rain or dew) cause epidemics. Severe infection causes upto 30 percent yield losses.
The most common site for symptoms is on upper leaf blades, however, sheaths, glumes and awns may occasionally become infected and exhibit symptoms.
The pustules are circular or slightly elliptical, smaller than those of stem rust, usually do not coalesce, and contain masses of orange to orange-brown Urediospores.
Survival and spread
Pathogen over-summers in low and mid altitudes of Himalayas and Nilgiris. Primary infections develop from wind deposited urediospores in eastern Indo-gangetic plains in middle of January where it multiplies and moves westwards by March
Alternate host is Thalictrum sp.
Favourable conditions
Temperatures of 20-25° C with free moisture (rain or dew) cause epidemics. Severe infection causes upto 30 percent yield losses.
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