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Scientia Silvae Sinicae ›› 2014, Vol. 50 ›› Issue (5): 147-153.doi: 10.11707/j.1001-7488.20140519

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Effect of the Status of Adventitious Buds In Vitro Cultured from Mature Embryo of Pinus tabulaeformis on Its Rooting

Mai Kaile1, Shao Liqun2, Li Rongzhen1, Dong Lifen2, Lan Jianhua1   

  1. 1. Guangxi Eco-Engineering Vocational and Technical College Liuzhou 545004;
    2. Northwest A&F University Yangling 712100
  • Received:2013-08-28 Revised:2014-01-02 Online:2014-05-25 Published:2014-06-06
  • Contact: 董丽芬

Abstract:

The mature embryo of Pinus tabulaeformis was used as explants to induce adventitious buds and root on modified 1/2MS medium. The results showed that the largest multiplication rate with strong buds was obtained when adventitious bud cluster was divided into three pieces. The rooting rate of adventitious buds was 91.7%. The adventitious bud clusters with diameter larger than 0.9 cm, and the shoots with length longer than 6 mm had higher rooting rate. In the process of shoot elongation and multiplication, short culture duration could lead to a higher rooting capacity of the adventitious bud cluster, and the 28-days culture period was optimal for rooting, leading to a rooting rate of 73.3%. Adventitious bud clusters with big biomass were easily to root, and the higher the rooting rate the bigger the bud cluster biomass.

Key words: Pinus tabulaeformis, mature embryo, modified 1/2MS medium, adventitious bud induction, adventitious bud rooting

CLC Number: