Keywords: 
• 忍冬属、花粉、萌发

Abstract: In order to investigate pollen germination characteristics of Lonicera Linn. species and lay a foundation for their sexual hybridization ,the authors studied in vitro pollen germination of L. sempervi‐rens at different sucrose concentrations (15% ,20% ,25% and 30% ) .Four kinds of pollen were collected at different times of the day (8 :00-18 :00) and let to germinate in v itro at different temperatures (15 ℃ , 20 ℃ ,25 ℃ and 30 ℃) .The results showed that the pollen of L. sempervirens germinated quickly in the culture liquid containing 30% sucrose+ 0.01% boric acid with a high germination rate ,which could be used as a pollen germination medium .The pollen of L. sempervirens Linn. ,L. periclymenum“Geleimu”and L. buchananii Lace. had high germination rate w hen collected at 8:00 a. m. ,and the pollen of L. j a‐ponica var. chinensis collected at 18 :00 p. m. had significantly higher germination rate than that collected at other times .Under the condition of 25 ℃ ,the pollen of L. sempervirens Linn. germinated in vitro quickly ,with a germination rate of 95.1% in 4 h .The pollen of L. × heckrottii ,L. buchananii Lace and L. j aponica var. chinensis gave a high germination rate at 30 ℃ ,being 12.4% ,84.7% and 12.4% ,re‐spectively ,in 4 h .No significant difference was noticed between 25 ℃ and 30 ℃ in pollen germination rate of L. sempervirens ,L. × heckrottii and L. buchananii Lace ,while a significant difference was recorded for L. j aponica var. chinensis .Pollen germination rate was significantly different between different varie‐ties ,being the highest for L. sempervirens Linn .