摘要
研究了扦插基质,激素种类、浓度与处理时间,采条部位以及基因型对北美红杉扦插成活率的影响。结果表明:基质配比、激素种类、浓度及处理时间、采条部位等对北美红杉扦插成活率均有显著影响。基质配比以珍珠岩∶草炭=7∶3效果最好;激素以1 000 mg/kg ABT速蘸处理效果为佳;枝条顶部插穗好于下部插穗。不同基因型的扦插成活率差异显著。选取合适的基因型,采集顶部插穗,用1 000 mg/kg的ABT速蘸处理,扦插在珍珠岩∶草炭=7∶3的基质上能获得理想的效果。
The propagation techniques of Sequoia sempervirens were explored based on the experiments in the consideration of cutting medium, hormone types, concentrations and time of treatment, and cutting position. 5 kinds medium, 3 types hormones, 35 treatments were tested to seek the best way for cutting propagation of Sequoia sempervirens. The results indicated that medium had remarkable effect on the rooting ratio, with the combination of pearlite： Peat =7：3 the best. Types of hormone, contents of hormone, as well as the treatment time had also obvious effect on the rooting ratio of Sequoia sempervirens cuttings. Quick dipping with 1 000 mg/kg ABT was the best way for cutting propagation of Sequoia sempervirens. The results also showed that cuttings from different genotypes had significant differences on the rooting ratio of Sequoia sempervirens, indicating the possibility to select superior individual with good rooting ability. Therefore, choosing the optimal genotypes, combined with treatments as collecting cuttings from top fragment, quick dipping cuttings in 1 000 mg/kg ABT and then cultured in medium of the combination of pearlite： Peat = 7：3 would be the best way for cutting propagation of Sequoia sempervirens.
出处
《林业科技开发》
2006年第6期35-37,共3页
China Forestry Science and Technology
基金
江苏省农业科技推广项目资助(编号:BC2005337)
关键词
北美红杉
扦插繁殖
生根率
基因型
Sequoia sempervirens
Medium
Rooting rate
Genotyloe
