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Chinese Agricultural Science Bulletin ›› 2023, Vol. 39 ›› Issue (31): 90-95.doi: 10.11924/j.issn.1000-6850.casb2022-0900

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Effects of Substrate and Growth Hormone on Hardwood Cutting Propagation of Ficus tikoua

WANG Xiaorong1,2(), GU Zhongchun1, LIU Xing1, TANG Lan1, DAI Xue1, YANG Jiawei1,2, ZHOU Yufang2,3, ZHOU Gaoyu4   

  1. 1 Hubei Academy of Forestry, Wuhan 430075
    2 National Positioning Observation and Research Station of Forest Ecosystem in Daba Mountain, Shiyan, Hubei 442200
    3 Zhushan County Forestry Bureau, Shiyan, Hubei 442200
    4 Zigui County Forestry Bureau, Yichang, Hubei 443600
  • Received:2022-10-31 Revised:2023-06-12 Online:2023-10-31 Published:2023-10-31

Abstract:

In this study, we planted hardwood cutting of Ficus tikoua in different soil substrate and with different types and concentrations of growth hormones, and we measured the rooting rate, rooting number, root length and root dry mass per plant, and calculated the rooting rate in each treatment. The results showed that the rooting rate of F. tikoua was significantly affected by substrate treatments but not growth hormone type. The rooting rate was highest (90.42%) in humus soil substrate while lowest (71.78%) in loess substrate. The average maximum root length, average root length, root biomass per plant and rooting index of cuttage roots were significantly affected by substrate, showing a same trend humus soil> loess> river sand. The average rooting number of F. tikoua under different hormone treatments was rhizogenic powder> 500 mg/L NAA> 200 mg/L NAA> 50 mg/L NAA> no hormone, rooting index was 500 mg/L NAA> 200 mg/L NAA> rhizogenic powder> 50 mg/L NAA> no hormone. However, hormone differences had no significant effect on average maximum root length, average root length and root biomass per plant. The combination of humus soil and 200 mg/L NAA was determined to be the optimal method for hardwood cutting of F. tikoua, the rooting rate and the root development were the best.

Key words: Ficus tikoua, substrate, growth hormone, hardwood cutting, rooting rate, root development