›› 2020, Vol. 32 ›› Issue (8): 1342-1350.DOI: 10.3969/j.issn.1004-1524.2020.08.02

• Crop Science • Previous Articles     Next Articles

Effects of planting space on growth and development of tobacco seedlings

XU Na1, WANG Dahai2, DU Chuanyin2, DU Shasha1, WANG Xiaomeng3, ZHANG Yan1, ZHANG Yuqin1, WU Yuanhua1, GUAN Ensen2, SHI Yi1,*   

  1. 1. Institute of Tobacco Research of Chinese Academy of Agricultural Sciences, Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture and Rural Affairs, Qingdao 266101, China;
    2. Shandong Weifang Tobacco Co., Ltd., Weifang 261205, China;
    3. Yunnan Honghe Tobacco Co., Ltd., Hani-Yi Autonomous Prefecture of Honghe 652399, China
  • Received:2020-02-07 Online:2020-08-25 Published:2020-08-28

Abstract: In order to study the effects of different planting spaces on growth and development of tobacco seedlings, flue-cured tobacco K326 was used as experimental material to research the root, stem, leaf development and correlative physiological index under treatments with same rhizosphere space (90 cm3) and different planting spaces (3, 6, 9 cm). The results showed that, different planting spaces could significantly influence the colony structure, emergence speed of new leaf, leaf number, leaf area, photosynthetic characters, stem height, stem radius of each node, stem pitch, lignified degree of stem, root architecture and root activity of seedings. The plant-type and the maximum elongation node were constant among different treatments. It was concluded that, different planting spaces could affect the colony structure, phenotype and physiological index of tobacco seedlings. The rhizosphere space of 90 cm3 and the planting space of 6 cm were beneficial to seedlings growth and development.

Key words: tobacco, planting space, growth and development, anatomical structure, lignification, root activity

CLC Number: