Analysis of Heat Resistance for Cultivars from North China Winter Wheat Region by Yield and Quality Traits QTL Mapping for Kernel Yellow Pigment Content in Common Wheat Identification of 1BL/1RS Translocation Based on Mixograph Parameters in Common Wheat QTL Mapping for Grain Yield and Spike Related Traits in Common Wheat Mapping QTLs for Flag Leaf Length,Width and Area in Wheat