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ARS Home » Southeast Area » Stuttgart, Arkansas » Dale Bumpers National Rice Research Center » Research » Publications at this Location » Publication #362073
Research Project: Gene Discovery and Crop Design for Current and New Rice Management Practices and Market Opportunities

Location: Dale Bumpers National Rice Research Center

Title: Uniform Regional Rice Nursery (URRN) and Arkansas Rice Performance Test (ARPT) field evaluation for bacterial panicle blight disease of rice in Arkansas

Author
item WAMISHE, YESHI - University Of Arkansas
item MULAW, TEMESGEN - University Of Arkansas
item Jia, Yulin
item GEBREMARLAM, TED - University Of Arkansas
item SHA, XUEYAN - University Of Arkansas

Submitted to: B. R. Wells Rice Research Studies
Publication Type: Experiment Station
Publication Acceptance Date: 7/15/2019
Publication Date: 8/1/2019
Citation: Wamishe, Y., Mulaw, T., Jia, Y., Gebremarlam, T., Sha, X. 2019. Uniform Regional Rice Nursery (URRN) and Arkansas Rice Performance Test (ARPT) field evaluation for bacterial panicle blight disease of rice in Arkansas. B. R. Wells Rice Research Studies. Research Series. pp 119-127.

Interpretive Summary:

Technical Abstract: Bacterial panicle blight disease of rice is one of the newly emerged rice diseases that threatens stable rice production in the USA. Here, we report the response of nearly 285 rice entries, 222 from the Uniform Regional Rice Nursery (URRN) and 63 from the Arkansas Rice Performance Test (ARPT) evaluated by artificially inoculating with a bacterial suspension under field conditions. The entries were planted early and late taking into consideration the differences in maturity and the possible variability in responses due to varied weather factors across the season. From URRN, 23 entries were grouped as moderately resistant (MR) and 47 as moderately susceptible (MS) in both early and late plantings. Thirty one entries showed MR response in early planted and MS in the late planted. The remaining 111 entries were grouped in different categories. Twelve entries showed MR response in early planted and S (susceptible) or VS (very susceptible) in the late planted URRN set. Contrarily, 12 other entries responded as MS in early planted and MR in late planted URRN set. There were 8 entries responded as S in early planted and MR in late planted sets. Among the ARPT, 5 were grouped as moderately resistant (MR) and 11 as moderately susceptible (MS) in both early and late planted. Eleven entries showed MR response in early and MS in the late planting. The remaining 36 entries were grouped in various categories. Four entries showed MR response in early and S (susceptible) or VS (very susceptible) in the late planted ARPT set. Ten other entries responded as MS in early planted and S (susceptible) or VS (very susceptible) in the late planted ARPT set. There were 22 entries that showed S or VS in both plantings. The three entries (RU1701176, RU1701179 and, RU1401105) that rated MR in 2017 responded MR, and MS in early planted sets and all showed a susceptible response in late planted sets suggesting the importance variability in weather factors in enhancing Bacterial Panicle Blight (BPB) severity. Among the 243 URRN entries evaluated under natural conditions at the Rice Research and Extension Center (RREC) rice breeder’s field, 133 entries did not show any visual symptom of BPB. Twenty four entries responded as R (1), 34 as MR (2), 27 as MS (3), 16 as S (4) and 1 as VS (5) and 8 missing.