关键词: 鼠尾草属, 花粉活力, 柱头可授性

Abstract: Pollen viabilities of four taxa in the genus Salvia were evaluated using TTC(2, 3, 5 - triphenyl tetrazolium chloride) , while stigma receptivities were measured by the method of benzidine - H2O2. The results showed that the pollen viability deceased during time of pollen shedding for S. cavaleriei var. erythrophylla, S. cavaleriei var. simplicifolia. However, it was different for S. paohsingensis Whose pollen viability deceased at first and then increased at a top, and deceased gradually. At the beginning of shedding the highest average pollen viability was S. paohsingensis (85.3%) and the least was S. flava (37.7%). The pollen longevities were about 3 to 7 days for 4 plants and the optimal pollination time was 1 day after flowering. The stigma of all accessions had receptivity when blooming. The stigma receptivity of 4 taxa was 3 to 5 days and the optimal pollination period lasted 3 days.

Key words: Salvia, pollen viability, stigma receptivity