关键词: 淫羊藿属, 花粉活力, 柱头可授性

Abstract: To provide the basal data for artificial cross breeding of six Epimedium species,pollen viabilities of six Epimedium species were evaluated using TTC (2,3,5-triphenyl tetrazolium chloride),while stigma receptivities were measured by a benzidine-H₂O₂ method.Results indicated that Pollen viabilities were different among species or populations.The highest pollen viability was that of E.flavum (87.8%),while the least was that of E.acuminatum (48.5%) from Wangyu.Pollen viabilities of all materials were relatively high in 1 to 2 days after blooming,then decreased gradually.The longevity of pollen was about 3 to 5 days.The stigma of all materials had receptivity within 3 days or 5 days after blooming,but it was stronger in 1 to 2 days than in other days.Stigma receptivity and its change tendency were similar,indicating that the stigma feature of Epimedium species was conservative.The optimum artificial pollination time of these six species was 1 to 2 days after blooming.

Key words: Epimedium, pollen viability, stigma receptivity