The AGR and RGR of alfalfa varieties were the highest during the period from the bud stage to the early flowering stage,while the highest AGR and RGR of awnless brome(B.inermis) occurred during the period from the elongation to the heading stage.

• 苜蓿在孕蕾至初花期、无芒雀麦在拔节至抽穗期AGR和RGR最高,混播降低了苜蓿的AGR和RGR值;