Ahmed Ibrahim1, 2, Matthew T. Harrison1, Peter Johnson1, Holger Meinke1 and Meixue X. Zhou1
1 Tasmanian Institute of Agriculture (TIA), 165 Westbury Rd Prospect, Tasmania, 7320, Ibrahim.Ahmed@utas.edu.au
2 Institute for Agricultural Research, Ahmadu Bello University, Zaria, Nigeria.
Kernel physical traits in barley are important in determining the suitability of a variety for either malting or feed. A pair of near isogenic lines (NILs) differing in the earliness per se gene (Eps5HL) on chromosome 5HL were evaluated for these traits. NILs had a significantly higher percentage of big kernels (P < 0.05). Significant differences (P < 0.05) in 1000-kernel weight were found between the two NIL lines and between the parents. For kernel hardness, Franklin had a higher particle size index (PSI) (56%) than TX9425 (51.3%) but no difference was found between the NIL lines. We therefore concluded that the Eps5HL locus of the NILs showed significant effects on kernel size and 1000-kernel weight, but not on kernel hardness.