摘要
The germination capacity of Pinus tabulaeformis seeds was obviously improved after the seeds were soaked with the different concentrations of natural brassinolide. The germination rate and germination energy of the seeds were increased by 23 1% and 14 94% respectively, and the mean germination speed ( i.e. germination time) of the seeds was cut down by 1 day under the best concentration (0 05?mg·L -1 ) treatment, compared with the control. After Robinia pseudoacacia seeds were treated with the best concentration(0 1?mg·L -1 ) of natural brassinolide, the germination rate and germination energy of the seeds were increased by 10 9% and 15 9% respectively, and the mean germination speed of the seeds was cut down by 1 26 day, compared with the control. After hypocotyls of Pinus tabulaeformis and Robinia pseudoacacia were treated with the natural brassinolide, the elongation of their hypocotyls was obviously increased. 0 01?mg·L -1 concentration of the natural brassinolide was the most suitable for the elongation of Pinus tabulaeformis hypocotyls,and 0 005?mg·L -1 concentration was the best for the elongation of Robinia pseudoacacia hypocotyls.
The germination capacity of Pinus tabulaeformis seeds was obviously improved after the seeds were soaked with the different concentrations of natural brassinolide. The germination rate and germination energy of the seeds were increased by 23 1% and 14 94% respectively, and the mean germination speed ( i.e. germination time) of the seeds was cut down by 1 day under the best concentration (0 05?mg·L -1 ) treatment, compared with the control. After Robinia pseudoacacia seeds were treated with the best concentration(0 1?mg·L -1 ) of natural brassinolide, the germination rate and germination energy of the seeds were increased by 10 9% and 15 9% respectively, and the mean germination speed of the seeds was cut down by 1 26 day, compared with the control. After hypocotyls of Pinus tabulaeformis and Robinia pseudoacacia were treated with the natural brassinolide, the elongation of their hypocotyls was obviously increased. 0 01?mg·L -1 concentration of the natural brassinolide was the most suitable for the elongation of Pinus tabulaeformis hypocotyls,and 0 005?mg·L -1 concentration was the best for the elongation of Robinia pseudoacacia hypocotyls.
出处
《林业科学》
EI
CAS
CSCD
北大核心
2002年第6期150-153,共4页
Scientia Silvae Sinicae
关键词
天然油菜素内酯
油松
刺槐
种子发芽
下胚轴伸长
水地保持林
种子处理
Natural brassinolide, Pinus tabulaeformis, Robinia pseudoacacia , Germination capacity of seeds, Elongation of hypocotyls
