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Bulletin of Botanical Research ›› 2019, Vol. 39 ›› Issue (3): 380-386.doi: 10.7525/j.issn.1673-5102.2019.03.008

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Effects of Growth Substrate and Hormones on Cutting Rooting of Chukrasia tabularis Young Shoots

ZHANG Jie1, WANG Qing1,2, ZHONG Chong-Lu2, ZHANG Yong2, WEI Yong-Cheng2, MENG Jing-Xiang2   

  1. 1. College of Landscape, Northeast Forestry University, Harbin 150040;
    2. Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520
  • Received:2018-11-19 Online:2019-05-05 Published:2019-05-11
  • Supported by:
    Natural Science Foundation of Guangdong Province of China(2014A030313003)

Abstract: We studiedthe effects of substrate, hormonetype, concentration and treating time on cutting rooting of Chukrasia tabularis with young shoots as test materials. The substrate treatments include peat soil, yellowsoil, river sand and vermiculite, adopting with a randomized complete block design. The hormone treatments adopted L9(33)orthogonal design with different hormone kinds(NAA, IBA and ABT), concentrations(500, 1 000 and 1 500 mg·L-1), and treating time(10 s, 1 min and 30 min). The results showed that:(1)The mixed substrate of peat soil+vermiculite(1:1, volume ratio) was the best, with the rooting rate of 81.81%, mean rooting number of 20.33 per plant, the average root length of 4.80 cm, and the root effective index of 3.05; (2)The hormone kinds had the greatest influence on cutting effectiveness of C.tabularis young shoots among the three main factors, followed by hormone concentrations, and the treating time had the least influence. In cutting, under the mixed substrate of peat soil+vermiculite(1:1), treated ewith ABT1 of 1 000 mg·L-1 for 10 s, the rooting effective was the best.

Key words: Chukrasia tabularis, young shoot cutting, substrate, hormone, orthogonaldesign

CLC Number: