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ARS Home » Southeast Area » Stuttgart, Arkansas » Dale Bumpers National Rice Research Center » Research » Publications at this Location » Publication #338544
Title: Germplasm Evaluation for Resistance and Monitoring Bacterial Panicle Blight Disease of Rice in Arkansas, 2016

Author
item WAMISHE, YESHI - University Of Arkansas
item MULAW, TEMESGEN - University Of Arkansas
item Jia, Yulin
item GEBREMARIAM, TIBEBU - University Of Arkansas
item BELMAR, SCOTT - University Of Arkansas
item KELSE, CHRISTY - University Of Arkansas

Submitted to: B. R. Wells Rice Research Studies
Publication Type: Experiment Station
Publication Acceptance Date: 7/7/2017
Publication Date: 8/3/2017
Citation: Wamishe, Y., Mulaw, T., Jia, Y., Gebremariam, T., Belmar, S., Kelse, C. 2017. Germplasm Evaluation for Resistance and Monitoring Bacterial Panicle Blight Disease of Rice in Arkansas, 2016. B. R. Wells Rice Research Studies. series 643: 121-127.

Interpretive Summary:

Technical Abstract: Bacterial panicle blight (BPB), caused by a bacterial pathogen, mainly Burkholderia glumae, has posed a higher level of threat to rice production worldwide in recent years. Here we report the response of over 300 entries evaluated by artificially inoculating with a bacterial suspension under field conditions in the 2016 cropping season. From the field screening, about 24% and 11% of the entries showed resistant and moderately resistant reaction, respectively. Moreover, from symptomatic samples collected, nearly 85% of the samples were positive for B. glumae. B. gladioli, the second reported causal bacterium for BPB disease in rice was not recovered from any of the samples. In a greenhouse test to evaluate slow growing isolates of B. glumae to screen rice genotypes at the seedling stage, resulted in two isolates (RREC-46 and RREC-114) that appear potentially useful. These two isolates showed relatively higher consistency in lesion length gradient when inoculated on seedlings of eight rice cultivars of known susceptibility. The lesions on known susceptible cultivars such as Jazzman 2 and CL151 were longer than lesions on more resistant varieties such as Jupiter and hybrid rice.