Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2022, Vol. 38 ›› Issue (16): 51-55.doi: 10.11924/j.issn.1000-6850.casb2021-0674

Special Issue: 生物技术 园艺

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Effect of Different Substrate Proportions on Camellia sinensis Cutting Seedling Cultivation

LIU Min1(), ZHU Shuangfeng2, DAI Yujing2, WANG Runxian1   

  1. 1Jiangsu Tea Research Institute, Jiangsu Vocational College of Agriculture and Forestry, Jurong, Jiangsu 212400
    2College of Tea and Food Science Technology, Jiangsu Vocational College of Agriculture and Forestry, Jurong, Jiangsu 212400
  • Received:2021-07-09 Revised:2022-02-10 Online:2022-06-05 Published:2022-06-09

Abstract:

At present, the short-spiked cutting seedling cultivation is the main method of tea plant propagation, as well as the main means of factory nursery of seedlings. However, there are some disadvantages such as low survival rate of cutting seedlings and slow rooting. In this research, the substrates of Akadama clay and Kanuma mud were used in the cultivation of tea tree cutting seedlings, with good substrate formula obtained in the past as a control, aiming to find a cutting substrate with strong adaptability and high cutting survival rate. The results showed that the best substrate was Akadama clay: Kanuma mud: humus= 5:2:3 (V/V/V), with a cutting survival rate of 100% at the highest, significantly higher than that of the substrate of vermiculite: peat=1:2 (V/V). The earliest budding time under the best substrate treatment was 10 days, which was 5-8 days earlier than that under other substrate treatments, and the rooting performance was also the best (10.76 cm), significantly longer than that of other groups. Therefore, the substrate of Akadama clay: Kanuma mud: humus=5:2:3 (V/V/V) could maximize the growth of total root length, number of fibrous roots, ground diameter and biomass of the root system. The overall performance of tea seedlings was the best, with the advantages of fast rooting, early budding, strong reproductive ability, high survival rate and strong applicability. As a conclusion, the above substrate proportion can be used for tea cutting seedling cultivation.

Key words: Camellia sinensis, Kanuma mud, Akadama clay, humus, cutting seedlings

CLC Number: