Effect of qDTY
(A) and qDTY
(B) on grain yield of different maturity classes under lowland drought stress and non-stress conditions. LSS: lowland severe stress; LMS: lowland moderate stress; LNS: lowland non-stress. E: early lines (Mean DTF ≤70 days under non-stress), M: Medium lines (Mean DTF = 71-75 days under non-stress), L: late lines (Mean DTF ≥76 days under non-stress). **, ***, ****: significant at 1%, 0.1%, and 0.01% P levels, respectively.