A rice heading-date-related mutant was isolated from a 60 Co-γ-ray-induced mutation pool of Zhejing 22,a conventional japonica cultivar in Zhejiang Province,Ch
M202,IR50 and advanced backcross(BC 4 F 6) lines carrying the cold tolerance QTLs qCTS4 and qCTS12 were evaluated using three low temperature stress assays(cons