Fig. 3
Phenotypic selections can be conducted under the modified speed breeding combined with the speed vernalization condition (SV + mSB). (a) Correlations of days to heading (DTH) and culm length (CL) between the SV + mSB and field conditions. Genetic resources: a total of 609 wheat cultivars collected worldwide; RILs: Jokyoung×Joongmo2008 derived 184 recombinant inbred lines. (b) The phenotypic difference in Joongmo2008*2/Tapdong BC1F4 lines under the SV + mSB condition. The left three individuals represent selected lines with early heading and short CL, while the right three lines were eliminated due to their delayed DTH and long CL. The distribution of DTH (c) and CL (d) in Joongmo2008*2/Tapdong BC1F5 37 lines evaluated in field