| LaCl3对楸树无性系试管苗生长的影响 |
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| 引用本文： | 于永明,王军辉,马建伟,李平英,马丽娜.LaCl3对楸树无性系试管苗生长的影响[J].东北林业大学学报,2011,39(1):31-33. |
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| 作者姓名： | 于永明 王军辉 马建伟 李平英 马丽娜 |
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| 作者单位： | 于永明,Yu Yongming(甘肃省小陇山林业科学研究所,天水,741022);王军辉,Wang Junhui(国家林业局林木培育重点实验室(中国林业科学研究院林业研究所));马建伟,李平英,马丽娜,Ma Jian-wei,Li Pingying,Ma Lina(甘肃省小陇山林业科学研究所) |
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| 基金项目： | "十一五"国家科技支撑课题，农业科技成果转化项目，国家林业局林木培育实验室基金 |
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| 摘 要： | 将不同质量浓度的LaC l3加入楸树培养基中,研究LaC l3对楸树组培苗生长的影响。试验结果表明,稀土化合物LaC l3对楸树组培苗生长有显著效应,继代培养适量质量浓度可促进茎段愈伤组织膨大,促进增殖芽的生长,提高增殖系数,但对增殖分化芽的诱导有明显的抑制作用,整体趋势显示出低质量浓度促进,高质量浓度抑制,效果以20 mg.L-1左右为宜;生根培养适量质量浓度能促进单株发根数增多,促进根的伸长生长,提高生根率与移栽成活,低质量浓度抑制根系的发生、降低移栽成活率,高质量浓度提高生根率与移栽成活率,以80 mg.L-1效应显著;LaC l3能提高生根苗叶片叶绿素质量分数,且呈正相关,并可加速组培苗的光合作用,促进组培苗的生长;适量质量浓度的LaC l3能提高生根苗POD活性,增强组培苗抗逆性,以40 mg.L-1活性最高。
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| 关 键 词： | 楸树 稀土 试管苗 生长 叶绿素 POD活性 |
Effect of Lanthanum Chloride on Growth of in vitro Culture of Catalpa bungei |
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| Yu Yongming,Wang Junhui,Ma Jian-wei,Li Pingying,Ma Lina.Effect of Lanthanum Chloride on Growth of in vitro Culture of Catalpa bungei[J].Journal of Northeast Forestry University,2011,39(1):31-33. |
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| Authors: | Yu Yongming Wang Junhui Ma Jian-wei Li Pingying Ma Lina |
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| Institution: | Yu Yongming(Xiaolongshan Forestry Research Institute of Gansu Province,Tianshui 741022,P.R.China),Wang Junhui(Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration(Research Institute of Forestry,Chinese Academy of Forestry)),Ma Jianwei,Li Pingying,Ma Lina(Xiaolongshan Forestry Research Institute of Gansu Province) |
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| Abstract: | An experiment was conducted to study the effect of lanthanum chloride(LaCl3) on the in vitro plantlets of Catalpa bungei by adding different concentrations of LaCl3 to the subculture and rooting media.Results show that rare earth compound LaCl3 has an obvious effect on the in vitro plantlets of C.bungei.Appropriate concentration of LaCl3 in subculture medium can accelerate the growth of tissue on stem segments,and it is helpful for the increase of buds,leaves and multiplication coefficient,but it can greatl... |
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| Keywords: | Catalpa bungei Rare earth compounds Plantlets Growth Chlorophyll POD activity |
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