Key Laboratory of Crop Heterosis and Utilization State Key Laboratory for Agrobiotechnology Beijing Key Laboratory of Crop Genetic Improvement College of Agronomy and Biotechnology China Agricultural University Beijing 100193 China;
Institute of Wheat Research Shanxi Academy of Agricultural Sciences Linfen 041000 Shanxi China;
Hebei Crop Genetic Breeding Laboratory Institute of Cereal and Oil Crops Hebei Academy of Agriculture and Forestry Sciences Shijiazhuang 050035 Hebei China;
In situ hybridization; Spikelet number; Substitution line; Thousand-grain weight; Triticale;