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Chinese Agricultural Science Bulletin ›› 2023, Vol. 39 ›› Issue (34): 79-85.doi: 10.11924/j.issn.1000-6850.casb2022-1002

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Study on Cutting Propagation Technology of Rosa chinensis var. minima ‘Petit Four’ with Constant Temperature Substrate

ZONG Shubin1(), WU Xuli2, CHEN Shaoqing1, FU Danyang1, CAI Hongyu1   

  1. 1 Jiangsu Vocational College of Agriculture and Forestry, Jurong, Jiangsu 212400
    2 Xinjiang Applied Vocational and Technical College, Kuitun, Xinjiang 833200
  • Received:2022-12-01 Revised:2023-07-14 Online:2023-12-05 Published:2023-11-30

Abstract:

The cutting propagation technology experiment of Rosa chinensis var. minima ‘Petit Four’ with constant temperature substrate breeding system has been done. The effects of substrate temperature, micro spraying times, micro spraying duration and hormone treatment on the cutting rooting were studied with orthogonal design L9(34), so as to improve the breeding technology system of Rosa chinensis var. minima ‘Petit Four’. The results showed that by comprehensively analyzing the average rooting rate, average root length and average rooting number, the optimal horizontal combination was A3B2C1D1, that is, the substrate temperature was 25℃, the micro spraying was 2 times, the micro spraying duration was 5 minutes, soaked with IBA 200 mg/L for 10 minutes. The best treatment in this experiment was T8 treatment, with an average rooting rate of 91.08%, an average root length of 5.17 cm, and an average number of 6.36 roots.

Key words: constant temperature substrate, orthogonal test, miniature rose, cutting, rooting rate