TANG Ping,HAN Cun-cun.Effect of Two Plant Growth Regulators on Seedling Growth of Eucommia ulmoides Oliv[J].Northern Horticulture,2012,36(22):157-159.
两种植物生长调节剂对杜仲幼苗生长的影响
- Title:
- Effect of Two Plant Growth Regulators on Seedling Growth of Eucommia ulmoides Oliv
- 文章编号:
- 1001-0009(2012)22-0157-03
- 分类号:
- S 567.1+9
- 文献标志码:
- B
- 摘要:
- 以杜仲种子为试材，研究了不同浓度萘乙酸（NAA），2,4-二氯苯氧乙酸（2,4-D）处理后对杜仲幼苗生长的影响。结果表明：不同浓度的NAA、2,4-D对杜仲苗生长有不同的影响。在0.0001~1 mg/L的浓度范围内，NAA、2,4-D对杜仲苗茎的伸长及重量都表现出促进作用，但2,4-D的促进效果更显著；对根的影响，2,4-D在浓度升至0.1 mg/L处已显现出显著性抑制作用，而萘乙酸至1 mg/L处才表现出抑制，且抑制效果不如2,4-D显著，表现杜仲根的生长对2,4-D更敏感。2种生长调节剂当浓度高至抑制根的生长时（NAA为1 mg/L，2,4-D为0.1 mg/L）萌发的侧根数最多。
- Abstract:
- The effect of different concentration of naphthalene acetic acid (NAA) and 2,4-dichlorophenoxyacetic acid(2,4-D) on seedling growth of Eucommia ulmoides Oliv were analyzed.The results showed that NAA and 2,4-D with different concentration had different effects on the growth of root and stem of E.ulmoides Oliv.NAA and 2,4-D，in the range of 0.0001~1 mg/L，could promote the growth of the weight and length of stem.The effect of 2,4-D was more significantly.2,4-D above 0.1 mg/L can performed significant inhibition to root elongation，but NAA must get to 1 mg/L.The root growth of E.ulmoides Oliv was more sensitive to 2,4-D than to NAA.Number of lateral roots were the most at the concentration of beginning to inhibit root growth (NAA was 1 mg/L，and 2,4-D was 0.1 mg/L).
参考文献/References:
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备注/Memo
第一作者简介：唐萍（1965-），女，江苏连云港人，博士，教授，现主要从事植物生理学的教学与研究工作。