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Chinese Agricultural Science Bulletin ›› 2023, Vol. 39 ›› Issue (31): 38-43.doi: 10.11924/j.issn.1000-6850.casb2022-0867

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Effects of Substrate Composition and Planting Number on the Emergence and Growth of Chimonobambusa marmorea f. variegata Seedling

LUO Jiali(), TANG Yilei, SHI Wenhui, YING Yeqing()   

  1. Bamboo Research Institute, Zhejiang A&F University, Hangzhou 311300
  • Received:2022-10-17 Revised:2023-03-02 Online:2023-11-05 Published:2023-10-31

Abstract:

To screen out the optimal combination of substrate composition and planting number suitable for the seedling formation of Chimonobambusa marmorea f. variegata, potted combination experiments were performed with different substrate ratios (yellow brown soil: peat= 5:0, 3:2, 1:1, 2:3) and different planting number (7, 5 and 3 respectively). The morphological growth and physiological characteristics of the C. marmorea f. variegate in the above treatments were analyzed. The results showed that emergence ratio, plant height, ground diameter, leaf area, chlorophyll content, nitrogen content and phosphorus content and activity of antioxidant enzymes of C. marmorea f. variegate under various treatments were different. Among them, the plant height, ground diameter, leaf area, chlorophyll content, nitrogen content and phosphorus content and activity of antioxidant enzymes in C. marmorea f. variegate under the treatment of substrate composition (5:0) and planting number (7) were much higher than those in other treatments. Based on the above results, the optimal combination of substrate composition and planting number for good breeding of C. marmorea f. variegate is determined, the ratio of yellow-brown soil: peat is 5:0, and the planting number is 7.

Key words: Chimonobambusa marmorea f. variegate, substrate composition, planting number, seedling growth, morphological indexes, physiological indexes