关键词: 鼠尾草属, 花粉活力, 柱头可授性

Abstract: Pollen viability of three taxa in the genus Salvia was evaluated using TTC(2, 3, 5-triphenyl tetrazolium chloride), while stigma receptivity was measured by the method of benzidine-H₂O₂.The results showed that the pollen viability decreased gradually with the extension of pollen shedding time for S. cavaleriei var.erythrophylla, S. cavaleriei var. simplicifolia and S. flava.In the early phase of shedding, the highest pollen viability was shown in S. cavaleriei var. simplicifolia(76.8% on the average) and the least was in S. flava(37.7% on the average).The pollen longevity of 3 plants was about 3 to 7 days and the optimal pollination time was 1 day after flowering.The stigma of all accessions had receptivity when blooming.The stigma receptivity of 3 taxa was 3 to 5 days and the optimal pollination period lasted 2 days.

Key words: Salvia, pollen viability, stigma receptivity