Abstract: Taking ecology as direction, wheat ecological division as base, wheat adaptability and ecological characteristic as basis, wheat ecological classification system is suggested to consist of wheat climatic synusium, geographic ecotype, cultivation ecotype and variety type, to correspond with wheat ecological division. And the common wheat is divided into five climatic ecological groups and twenty geographic ecotypes, that is:I. North temperate zone spring wheat climatic ecological type, which includes three spring wheat climatic ecotypes to be located in northeast plain, Inner Mongolia prairie and northwestern Ningxia and Gansu;Ⅱ. Yellow一Huai Hai River warm temperate zone winter wheat ecological group, which includes six winter wheat ecotypes as follows : Hai River plain, Loess plateau, Jiaodong-Liaodong seacoast, North China plain, middle reaches of Yellow River and Huaibei plain;Ⅲ. South subtropic spring wheat climatic ecological group, which includes seven spring wheat ecotypes as middle and lower reaches plain of Yangtze River, Qin-Ba hilly area, Southern hilly area, Sichuan basin, Yunnan plateau, Guizhou plateau and South China plain;Ⅳ.Xinjiang inland winter spring wheat chlimatic ecological group, which comprises Xinjiang both spring wheat and winter wheat ecotypes;Ⅴ. Qinghai and Tibet plateau wheat climatic ecological group, which includes both ecotypes of Qinghai plateau and Tibet plateau.

Key words: Common wheat, Ecological classification, China

CLC Number: 

• S512.101