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Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (34): 16-19.doi: 10.11924/j.issn.1000-6850.casb15050110

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Study on Cutting Propagation of Tilia taishanensis S. B. Ling

Wu Xiaolong, Yin Wanyuan, Ren Ying, Tong Ran, Zang Dekui   

  1. (College of Forestry, Shandong Agricultural University, Tai’an Shandong 271018)
  • Received:2015-05-20 Revised:2015-06-13 Accepted:2015-06-25 Online:2015-12-17 Published:2015-12-17

Abstract: The paper aims to provide the theoretical basis for protection and rapid propagation of Tilia taishanensis S. B. Ling. The effect of different parts (upper, middle and lower), types of cuttings and different hormones (IBA, NAA and ABT) and their concentrations (500, 1500, 3000, 5000mg/L) on the cutting rooting of Tilia taishanensis S. B. Ling was researched. The results indicated that cuttings in the middle had the best rotting effect, which had a rooting rate of 45.6%. The rooting rate of the upper was 39.7% and that of the lower was 35.2%. Different cuttings significantly affected their rooting capacity. The rooting rate of shoot in early August was 52.3%, 1.1 times of the hardwood in mid-September. The types and concentrations of growth regulators were also important factors that affected cutting rooting. Treated with IBA at a concentration of 3000 mg/L, the cuttings had a rooting rate of 68.5%, an average root number of 18.6 and an average root length of 12.35 cm, which were 2.6 times, 1.4 times and 1.2 times of that of the control respectively. The middle cuttings shortly dipped with 3000 mg/L IBA were appropriate for the cutting rooting of Tilia taishanensis S. B. Ling.