The techniques of cutting propagation of Potentilla fruticosa was studied.The tender stem cuttings and the woody stem cuttings were treated by different concentrations of BBA(0 mg·kg-1,10 mg·kg-1,50 mg·...The techniques of cutting propagation of Potentilla fruticosa was studied.The tender stem cuttings and the woody stem cuttings were treated by different concentrations of BBA(0 mg·kg-1,10 mg·kg-1,50 mg·kg-1,100 mg·kg-1,200 mg·kg-1,500 mg·kg-1).The results indicated that the rooting percentage of tender stem cuttings at the concentration of 10 mg ·kg-1BBA was the highest(88.3%),and that of woody stem cuttings treated by the concentration of 50 mg·kg-1BBA was the highest(66.67%).It also indicated that the rooting percentages of the tender stem cuttings were better than those of the woody stem cuttings with same treatment.展开更多
Germination of Lespedeza floribunda Bunge.seeds was studied in order to provide cultivation and application in gardening and landscaping.Results indicated that the seeds of Lespedeza floribunda had the characteristic ...Germination of Lespedeza floribunda Bunge.seeds was studied in order to provide cultivation and application in gardening and landscaping.Results indicated that the seeds of Lespedeza floribunda had the characteristic of forcing dormancy that was caused by hard seed vessels.The dormancy could be released by soaking in hot water and by sulphuric acid treatment.The most appropriate treatment time was 10～30 min,resulting in average germination rate(96%),average germination power(82.53%)and average germination index(17.54).The optimum germination temperature was 25 ℃ and the germination rate,germination power and germination index was 95%,81%,22.95 respectively after treated by sulphuric acid for 20 min.展开更多
文摘The techniques of cutting propagation of Potentilla fruticosa was studied.The tender stem cuttings and the woody stem cuttings were treated by different concentrations of BBA(0 mg·kg-1,10 mg·kg-1,50 mg·kg-1,100 mg·kg-1,200 mg·kg-1,500 mg·kg-1).The results indicated that the rooting percentage of tender stem cuttings at the concentration of 10 mg ·kg-1BBA was the highest(88.3%),and that of woody stem cuttings treated by the concentration of 50 mg·kg-1BBA was the highest(66.67%).It also indicated that the rooting percentages of the tender stem cuttings were better than those of the woody stem cuttings with same treatment.
文摘Germination of Lespedeza floribunda Bunge.seeds was studied in order to provide cultivation and application in gardening and landscaping.Results indicated that the seeds of Lespedeza floribunda had the characteristic of forcing dormancy that was caused by hard seed vessels.The dormancy could be released by soaking in hot water and by sulphuric acid treatment.The most appropriate treatment time was 10～30 min,resulting in average germination rate(96%),average germination power(82.53%)and average germination index(17.54).The optimum germination temperature was 25 ℃ and the germination rate,germination power and germination index was 95%,81%,22.95 respectively after treated by sulphuric acid for 20 min.
