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 se...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.展开更多
The germination capacity of Ailanthus altissima seeds improved after the seeds were soaked with different concentrations of natural brassinolide （NBR）. The germination rate and germination energy of the seeds increa...The germination capacity of Ailanthus altissima seeds improved after the seeds were soaked with different concentrations of natural brassinolide （NBR）. The germination rate and germination energy of the seeds increased by 17.6% and 18.8%, and the mean germination speed （i.e., germination time） of the seeds was shortened by 1.4 d under the optimal concentration （0.4 mg·L^-1） treatment, compared with the control. After hypocotyls of A.altissima were treated with NBR, the elongation of the hypocotyls increased. Among different concentrations of the NBR, 0.4 mg·L^-1 NBR appeared to be the optimal concentration for the elongation of A.altissima hypocotyls.展开更多
Seeds of soybeans and mung beans were soaked into five different concentrations （0, 0.05, 0.10, 0.20, 0.30 mg/L） of natural brassinolide （ NBR ） solution. According to the results, natural brassinolide treatment c...Seeds of soybeans and mung beans were soaked into five different concentrations （0, 0.05, 0.10, 0.20, 0.30 mg/L） of natural brassinolide （ NBR ） solution. According to the results, natural brassinolide treatment could improve seed germination rate and hypocotyl-radicle ratio of soybeans and mung beans and promote the growth of sprouts. To be specific, seed germination rate of soybeans reached the highest in 0.05 mg/L natural brassinolide treatment, which was im- proved by 25.0 percentage points compared with the control group, and the sprout length was improved by 4.33 em; 0.30 mg/L natural brassinolide exhibited the most significant promotion effect on seed germination and sprout growth of mung beans, seed germination rate was improved by 18.3 percentage points and sprout length was improved by 7.29 cm; hypocotyl-radiele ratio of soybean and mung bean sprouts reached the highest （2.96, 1.43 ） in 0.05 mg/L natural brassinolide treatment.展开更多
文摘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.
文摘The germination capacity of Ailanthus altissima seeds improved after the seeds were soaked with different concentrations of natural brassinolide （NBR）. The germination rate and germination energy of the seeds increased by 17.6% and 18.8%, and the mean germination speed （i.e., germination time） of the seeds was shortened by 1.4 d under the optimal concentration （0.4 mg·L^-1） treatment, compared with the control. After hypocotyls of A.altissima were treated with NBR, the elongation of the hypocotyls increased. Among different concentrations of the NBR, 0.4 mg·L^-1 NBR appeared to be the optimal concentration for the elongation of A.altissima hypocotyls.
基金Supported by Key Joint Foundation for Fostering Talents of NSFC-Henan Province(U1204307)Key Project of Science and Technology of Henan Province(102102110155,142102110173,152102210334)Cultivation Fund of Luoyang Normal University(2013-PYJJ-001,10000993)
文摘Seeds of soybeans and mung beans were soaked into five different concentrations （0, 0.05, 0.10, 0.20, 0.30 mg/L） of natural brassinolide （ NBR ） solution. According to the results, natural brassinolide treatment could improve seed germination rate and hypocotyl-radicle ratio of soybeans and mung beans and promote the growth of sprouts. To be specific, seed germination rate of soybeans reached the highest in 0.05 mg/L natural brassinolide treatment, which was im- proved by 25.0 percentage points compared with the control group, and the sprout length was improved by 4.33 em; 0.30 mg/L natural brassinolide exhibited the most significant promotion effect on seed germination and sprout growth of mung beans, seed germination rate was improved by 18.3 percentage points and sprout length was improved by 7.29 cm; hypocotyl-radiele ratio of soybean and mung bean sprouts reached the highest （2.96, 1.43 ） in 0.05 mg/L natural brassinolide treatment.
