Sugar Tech

, Volume 20, Issue 2, pp 202–211 | Cite as

Morphological and Physiological Responses of Sugar Beet to Alkaline Stress

  • Chunlei Zou
  • Limin Sang
  • Zhijia Gai
  • Yubong Wang
  • Caifeng Li
Research Article


To explore the morphological and physiological responses of sugar beet to alkaline soils, four levels of alkaline (NaHCO3 + Na2CO3) concentration, including 0.0% (designated as A0.0%, control), 0.5% (designated as A0.5%), 0.7% (designated as A0.7%), and 0.9% (designated as A0.9%), were applied to sugar beet cultivars KWS0143 and Beta464 in a pot experiment in 2015 and 2016. The growth indexes, osmolyte content, and antioxidase activity of both cultivars were measured. Alkaline stress significantly decreased the emergence rate of both cultivars. Dry matter weight per plant and leaf chlorophyll content first increased but then decreased with increasing alkaline concentration at different stages in both years. The content of leaf osmolytes and the activity of antioxidases were enhanced at A0.5% and A0.7% but inhibited at A0.9%. These findings suggested that sugar beet adapted well to alkaline soil stress by osmotic adjustment and antioxidation and that its growth increased when stress was relatively low (A0.5% and A0.7%) at different stages. Moreover, proline content, CAT activity, and APX activity of KWS0143 under the same treatment were higher than those of Beta464. Our results confirmed that sugarbeet variety KWS0143 was showing tolerant behaviour to alkalinity.


Sugar beet Alkaline Osmotic adjustment Antioxidase 



This study was funded by National Natural Science Foundation of China (Grant Number 31671622).

Compliance with Ethical Standards

Conflict of interest

Chunlei Zou, Limin Sang, and Caifeng Li have received research grants from Northeast Agricultural University. Zhijia Gai, from Heilongjiang Academy of Agricultural Sciences, participated in manuscript modification. Yubo Wang is a member of Northeast Agricultural University. The authors declare that they have no conflict of interest.


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Copyright information

© Society for Sugar Research & Promotion 2017

Authors and Affiliations

  • Chunlei Zou
    • 1
  • Limin Sang
    • 1
  • Zhijia Gai
    • 2
  • Yubong Wang
    • 1
  • Caifeng Li
    • 1
  1. 1.College of AgronomyNortheast Agricultural UniversityHarbinChina
  2. 2.Jiamusi BranchHeilongjiang Academy of Agricultural SciencesJiamusiChina

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