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EVALUATING BLB RESISTANCE / AGGRESSIVNESS IN RICE THROUGH
BEST INOCULUM CONCENTRATION,
INOCULATION AND
APPLICATION METHODS
RUKHSANA JABEEN 1*,
SAEED UR RAHMAN2 AND AFROS RAIS3
Abstract:
The present study
was conducted to compare effective method of inoculation, inoculum
concentration and application of agrochemicals for evaluating BLB
resistance/ aggressiveness and management of BLB disease in rice
susceptible varieties through detached leaf assay, Glass house assay and
field assay against most aggressive isolate Xoo 105. A comparison of
inoculation methods showed that pin prick method produced high infection
in all cultivars than clipping and paint brush methods. The pin prick
method significantly produced high lesion length on detached leaves as
compared to other two methods, while clipping method of inoculation
showed high infection producing large lesion in potted plant and field
assays. Protective application methods of streptomycin drug showed best
results as compare to curative and promising concentration of 108cfu
/ml.
1Department of Plant Sciences SBKW University, Quetta, Pakistan
2Department of Botany University of Balochistan, Pakistan
3Department of Plant Sciences SBKW University, Quetta, Pakistan
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