[Objective] Hard-branch cutting propagation technology of Fraxinus was studied under different environmental conditions. [Method] An orthogonal test was designed based on 1-year-old clones of F. pennsylvanica Marsh Lu...[Objective] Hard-branch cutting propagation technology of Fraxinus was studied under different environmental conditions. [Method] An orthogonal test was designed based on 1-year-old clones of F. pennsylvanica Marsh Lula 5. Under dif- ferent growth hormones, hormone concentrations and processing time, F. velutina Lula 2 and F. pennsy/vanica Marsh Yuanla 2 were treated by vacuum pump for 10 min, [Result] The decreasing order of cutting survival rates of Lula 5 under different etnvironments was small plastic flowerpot (94.4%), nutrition cup (92.8%), sand tray (56.1%), and cuffings treated with 100 mg/L ABT, for 2 h, 200 mg/L ABT, for 4 h and 100 mg/L IBA for 6 h under large nutrition cup environment grew the best, showing a survival rate of 100%. Lula 2 and Yuanla 2 were subjected to vacuum pump treatment, the survival rate of cuttings under the sand tray environment was averagely 29%; and under the large plastic flowerpot environment, the survival rate of cuttings was averagaly 64.4%, and cuttings of Lula 2 treated with vacuum pump for 10 min in 200 mg/L ABTI showed a survival rate up to 95%, which was the highest among all treatments. It could be seen that whether cuttings were treated with vacuum pump, the survival rate of cuttings in sand tray was lower than those under other environments, while there was no big difference in survival rate of cut- tings between the nutrition cup and plastic flowerpot environments. [Conclusion] This study is of great significance to improvement of cutting propagation coefficient.展开更多
Cutting propagation rhizogenesis of Toona ciliata clone cutting orchard were studied, and the results were as fol ows: Rooting type included both cal us rooting and cortex rooting. About 17 in 22 of clones were domin...Cutting propagation rhizogenesis of Toona ciliata clone cutting orchard were studied, and the results were as fol ows: Rooting type included both cal us rooting and cortex rooting. About 17 in 22 of clones were dominated by cortex rooting, accounting for the 77% of clones. There were 5 clones which occurred with both cal us rooting and cortex rooting during rooting process. The rooting efficiency index (REI) showed a positive correlation with the rooting rate. Under natural tem-perature condition, keeping moisture and shading, we found that the highest survival rate occurred in early June, September, and October.展开更多
The cutting propagation technique of Picea koraiensis was carried under automatic spraytng of total sunlight by adopting the same year epicormic branches from different trees with different age treated by different ho...The cutting propagation technique of Picea koraiensis was carried under automatic spraytng of total sunlight by adopting the same year epicormic branches from different trees with different age treated by different hormones in different concentration and time and the orthogonal and randomized block was designed. The results were as follows : (1)The rooting rate of the cutting reached at least 87 percent, when the cuttings were from the seed tree with the age below 25 years old and the cuts of the cuttings base were in vertical angle and on the fine sand medium. (2) The sequence of effective factors affecting the rooting rate were the style of cut, the age of seed tree and the trpe of mediun. (3) There are significant differences of rooting rate among different clones.展开更多
[Objective] The research aimed to study the effects of different matrices and hormones on the rooting rate of Rubus spp. Raspberry. [Method] Different ma- trices and different hormones with different concentrations we...[Objective] The research aimed to study the effects of different matrices and hormones on the rooting rate of Rubus spp. Raspberry. [Method] Different ma- trices and different hormones with different concentrations were adopted to design completely randomized block test, thus to conduct cutting experiment of Rubus spp. Raspberry, in order to discuss the effects of different matrices and hormones on the rooting rate of Rubus spp. Raspberry. [Result] The rooting rate was significantly af- fected by different hormones and matrices, whereas the effect of hormone concen- tration was not significant. The suitable combination was 200 mg/kg ABT + river sand. The effect of growth hormone on hard wood cutting of Rubus spp. Raspberry in river sand was not significant. [Conclusion] This test can provide a reference for the industrialized seedling production of Rubus spp. Raspberry.展开更多
In order to realize the efficient industrial production of <i>Ilex</i> “China Girl”, an orthogonal experiment with 4 factors and 3 levels was designed. Firstly, the optimal orthogonal cutting scheme was ...In order to realize the efficient industrial production of <i>Ilex</i> “China Girl”, an orthogonal experiment with 4 factors and 3 levels was designed. Firstly, the optimal orthogonal cutting scheme was selected from 9 treatments. Then through the systematic analysis of the effects of cutting position, substrate, exogenous hormones type and concentration on rooting indexes, such as rooting rate, root number, root length and root effect index, the theoretical optimal scheme was predicted and verified. The results showed that the theoretical optimal scheme (3000 mg/L IBA treatment for 15 s, cutting in mixed matrix with peat soil, perlite and vermiculite ratio of 2:1:1) was the optimal <span>cutting rooting scheme of <i>Ilex</i> “China Girl”. After the treatment of this sc</span>heme, the rooting rate of <i>Ilex</i> “China Girl” reached 100%, the average root number was 51.67 per plant, and the average root length was 6.13 cm. The rooting time was greatly shortened, the rooting rate and rooting effect were greatly improved. In this study, the efficient cutting propagation technology system of <i>Ilex</i> “China Girl” was established, which laid a foundation for the popularization and application of <i>Ilex</i> “China Girl”, and also provided reference for further improving the cutting propagation efficiency of other evergreen holly. This study laid a foundation for the application of <i>Ilex</i> “China Girl”, and also provided a reference for further improving the cutting propagation efficiency of other evergreen holly.展开更多
基金Supported by Science and Technology Support Program during the Twelfth Five-year Plan(2013BAD01B06)~~
文摘[Objective] Hard-branch cutting propagation technology of Fraxinus was studied under different environmental conditions. [Method] An orthogonal test was designed based on 1-year-old clones of F. pennsylvanica Marsh Lula 5. Under dif- ferent growth hormones, hormone concentrations and processing time, F. velutina Lula 2 and F. pennsy/vanica Marsh Yuanla 2 were treated by vacuum pump for 10 min, [Result] The decreasing order of cutting survival rates of Lula 5 under different etnvironments was small plastic flowerpot (94.4%), nutrition cup (92.8%), sand tray (56.1%), and cuffings treated with 100 mg/L ABT, for 2 h, 200 mg/L ABT, for 4 h and 100 mg/L IBA for 6 h under large nutrition cup environment grew the best, showing a survival rate of 100%. Lula 2 and Yuanla 2 were subjected to vacuum pump treatment, the survival rate of cuttings under the sand tray environment was averagely 29%; and under the large plastic flowerpot environment, the survival rate of cuttings was averagaly 64.4%, and cuttings of Lula 2 treated with vacuum pump for 10 min in 200 mg/L ABTI showed a survival rate up to 95%, which was the highest among all treatments. It could be seen that whether cuttings were treated with vacuum pump, the survival rate of cuttings in sand tray was lower than those under other environments, while there was no big difference in survival rate of cut- tings between the nutrition cup and plastic flowerpot environments. [Conclusion] This study is of great significance to improvement of cutting propagation coefficient.
基金Supported by Hunan Forestry Science and Technology Project(XLK201406)~~
文摘Cutting propagation rhizogenesis of Toona ciliata clone cutting orchard were studied, and the results were as fol ows: Rooting type included both cal us rooting and cortex rooting. About 17 in 22 of clones were dominated by cortex rooting, accounting for the 77% of clones. There were 5 clones which occurred with both cal us rooting and cortex rooting during rooting process. The rooting efficiency index (REI) showed a positive correlation with the rooting rate. Under natural tem-perature condition, keeping moisture and shading, we found that the highest survival rate occurred in early June, September, and October.
文摘The cutting propagation technique of Picea koraiensis was carried under automatic spraytng of total sunlight by adopting the same year epicormic branches from different trees with different age treated by different hormones in different concentration and time and the orthogonal and randomized block was designed. The results were as follows : (1)The rooting rate of the cutting reached at least 87 percent, when the cuttings were from the seed tree with the age below 25 years old and the cuts of the cuttings base were in vertical angle and on the fine sand medium. (2) The sequence of effective factors affecting the rooting rate were the style of cut, the age of seed tree and the trpe of mediun. (3) There are significant differences of rooting rate among different clones.
基金Supported by Early Career Development Fellowship Program of Logging Industry Central office in Heilongjiang(sgzj Q2014003)~~
文摘[Objective] The research aimed to study the effects of different matrices and hormones on the rooting rate of Rubus spp. Raspberry. [Method] Different ma- trices and different hormones with different concentrations were adopted to design completely randomized block test, thus to conduct cutting experiment of Rubus spp. Raspberry, in order to discuss the effects of different matrices and hormones on the rooting rate of Rubus spp. Raspberry. [Result] The rooting rate was significantly af- fected by different hormones and matrices, whereas the effect of hormone concen- tration was not significant. The suitable combination was 200 mg/kg ABT + river sand. The effect of growth hormone on hard wood cutting of Rubus spp. Raspberry in river sand was not significant. [Conclusion] This test can provide a reference for the industrialized seedling production of Rubus spp. Raspberry.
文摘In order to realize the efficient industrial production of <i>Ilex</i> “China Girl”, an orthogonal experiment with 4 factors and 3 levels was designed. Firstly, the optimal orthogonal cutting scheme was selected from 9 treatments. Then through the systematic analysis of the effects of cutting position, substrate, exogenous hormones type and concentration on rooting indexes, such as rooting rate, root number, root length and root effect index, the theoretical optimal scheme was predicted and verified. The results showed that the theoretical optimal scheme (3000 mg/L IBA treatment for 15 s, cutting in mixed matrix with peat soil, perlite and vermiculite ratio of 2:1:1) was the optimal <span>cutting rooting scheme of <i>Ilex</i> “China Girl”. After the treatment of this sc</span>heme, the rooting rate of <i>Ilex</i> “China Girl” reached 100%, the average root number was 51.67 per plant, and the average root length was 6.13 cm. The rooting time was greatly shortened, the rooting rate and rooting effect were greatly improved. In this study, the efficient cutting propagation technology system of <i>Ilex</i> “China Girl” was established, which laid a foundation for the popularization and application of <i>Ilex</i> “China Girl”, and also provided reference for further improving the cutting propagation efficiency of other evergreen holly. This study laid a foundation for the application of <i>Ilex</i> “China Girl”, and also provided a reference for further improving the cutting propagation efficiency of other evergreen holly.