PJB-2003-118
INCIDENCE OF BACTERIAL BLIGHT OF RICE IN PAKISTAN DURING 2002
MUHAMMAD AFZAL AKHTAR, MUHAMMAD ZAKRIA, FIDA MUHAMMAD ABBASI1 AND M ASIF MASOOD2
Abstract
Bacterial blight (BB) of rice incited by Xanthomonas oryzae pv. oryzae created a serious situation in rice during the crop year 2002. It occurs at all stages of the crop and shows either kresek or leaf blight symptoms. If plant produces panicles, the sterility percentage increases as well as the number of immature grains. Grains from diseased plants are easily broken during milling. When there is heavy infection, no grain formation takes place. This survey was conducted during the crop year 2002 in Punjab, Sindh, Balochistan, NWFP and Azad Jammu & Kashmir to study the latest situation of this menace. In Punjab the incidence (% of infected plants) of bacterial blight ranges from 15-100
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