USE OF DIVERSE GERMPLASM FOR GENETIC IMPROVEMENT OF RICE
Location: Dale Bumpers National Rice Research Center
Title: RICE BLAST AND SHEATH BLIGHT EVALUATION RESULTS FOR NEWLY INTRODUCED RICE GERMPLASM
| Lee, Fleet - UA RREC |
| Gibbons, James - UA RREC |
| Emerson, Michael - UAF |
| Clark, Steve - UAF |
Submitted to: Arkansas Agricultural Experiment Station Research Series
Publication Type: Experiment Station
Publication Acceptance Date: February 1, 2003
Publication Date: August 1, 2003
Citation: Lee, F., Yan, W., Gibbons, J., Emerson, M.J., Clark, S.D. 2003. Rice blast and sheath blight evaluation results for newly introduced rice germplasm. Arkansas Agricultural Experiment Station Research Series 504. pp. 85-92.
Newly introduced rice germplasm and selected reference cultivars were evaluated in artificially inoculated greenhouse tests with individual blast races at Stuttgart, AR and field nurseries established with inoculation of blast race-mixture, and with inoculation of sheath blight isolates during the 2002 growing season. Fifty promising entries exhibited excellent greenhouse resistance to defined P. grisea races IB-1, IB-49, IC-17, IE-1, IG-1, and IH-1. These entries also exhibited almost complete resistance to leaf and panicle blast in the test nursery located in the University of Arkansas Pine Tree Branch Experiment Station, Pine Tree, AR. Although several entries appeared to have sheath blight tolerance in the test nursery located in the University of Arkansas Rice Research and Extension Center, Stuttgart, AR, additional testing is necessary to evaluate the role of an open plant canopy and/or a late maturity.