In this study, we used the man-controlled temperature method and morphology and physiology techniques to determine the cold responses and discrepancies of alfalfa at different fall dormancy levels ,11 varieties were included , then discussed the relationship between the fall dormancy and cold resistance. The results are as follows:
Under 4 low temperature stresses, the alfalfa’s cold resistance at low level fall dormancy is stronger than the high level’s, and -7℃with 6-hour low temperature stress is mo...