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Chinese Agricultural Science Bulletin ›› 2016, Vol. 32 ›› Issue (1): 22-27.doi: 10.11924/j.issn.1000-6850.casb15100075

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Establishment of a Tissue Culture and Rapid Propagation System of Lagerstroemia indica‘Xiaoming 1’

  

  • Received:2015-10-20 Revised:2015-12-15 Accepted:2015-12-01 Online:2016-01-28 Published:2016-01-28

Abstract: In order to establish a tissue culture and rapid propagation system, taking stems with axillary buds of Lagerstroemia indica‘Xiaoming 1’as testing materials, basic medium, concentrations of plant growth regulators, proliferation and rooting stage, and the transplanting method were studied. The results showed that the medium DKW BA 1.0 mg/L NAA 0.05 mg/L PVP 300 mg/L was suitable for inducing germination of stem auxiliary buds, and the rate of germination was up to 95.56%. The best proliferation medium was DKW BA 1.0 mg/L IBA 0.05 mg/L, and the multiplication coefficient was 5.08 with strong plantlets. The rooting percentage, average root number and length per shoot reached 100%, 6.2 and 4.12 cm, respectively, on the medium 1/2DKW NAA 0.1 mg/L AC 300 mg/L. Taking nutrition pot as container, peat soil and perlite as transplanting medium (3:1 or 2:1), the transplant survival rate was over 95.33%. There were many lateral roots and the plantlets which grew rapidly and vigorously. This method was suitable for tissue culture of L. indica ‘Xiaoming 1’and laid foundations for its large-scaled propagation and large area promotion.

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