The study on the period of stigma keeping vitality and optimum pollinated time of Madicago varia martin .cv .'Xinmu .No .1'

摘要

The effect of the time of stigma keeping vitality and pollinated on the breed system is nothing less than that of the pollinators species,visitation rate and etc.on breed system of plant( He Ya‐ping,2003). Alfalfa is typical cross‐pollinate plant.the stigma receptivity and the time of the stigma pollinated have important effect on seed weight and pod‐set rate per raceme (Strickli,1996 ;Hanson,1961).The study on the time of stigma keeping vitality and the optimum pollination time was carried out Madicago varia martin.cv..Xinmu.No.1.by artificial pollination to stigma at the different bud formation stage on flowering and time after flower opening.