Evaluation of saline-alkali and drought tolerance in maize varieties

Authors

  • Huili Zhang Agriculture College of Ningxia University, Yinchuan 750021, China
  • Chuang Yuan Agriculture College of Ningxia University, Yinchuan 750021, China
  • Guillian Mao Life Science College of Ningxia University, Yinchuan-750021, China
  • Xue Gao Breeding Base of State Key Laboratory of Land Degradation and Ecological Restoration of North-western China, Ningxia University, Yinchuan-750021, China
  • Liu Zhu Breeding Base of State Key Laboratory of Land Degradation and Ecological Restoration of North-western China, Ningxia University, Yinchuan-750021, China
  • Xing Xu Breeding Base of State Key Laboratory of Land Degradation and Ecological Restoration of North-western China, Ningxia University, Yinchuan-750021, China

DOI:

https://doi.org/10.3329/bjb.v48i4.49053

Keywords:

Maize, Saline-alkali stress, Drought stress, Principle component analysis, Subordinate function method, Cluster analysis

Abstract

Saline-alkali and drought stresses are one of the abiotic stress factors that limit the normal growth and development of plants. In this work, various agronomic indexes including growth physiology and yield attributes were studied under saline-alkali and drought stress treatments. It was found that the limit of plant growth and development caused by drought stress is much higher than that of saline-alkali stress (p < 0.01). Based on the comprehensive evaluation value (D value), under saline-alkali stress condition, 36 maize varieties could be divided into four groups by cluster analysis (CA): High saline-alkali tolerance (3 varieties), medium saline-alkali tolerant(10 varieties), saline-alkali sensitive (19 varieties), high saline-alkali sensitive (4 varieties). In drought stress condition, 36 maize varieties could be divided into five groups by cluster analysis (CA): High drought-tolerance (2 varieties), medium drought-tolerant (14 varieties), low drought-tolerant (15 varieties), drought-sensitive (4 varieties), high drought-sensitive (1 variety). Therefore, this study provides a comprehensive screening of maize varieties under saline-alkali and drought stresses.

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Author Biographies

Xue Gao, Breeding Base of State Key Laboratory of Land Degradation and Ecological Restoration of North-western China, Ningxia University, Yinchuan-750021, China

and Key Laboratory for Restoration and Reconstruction of Degraded Ecosystem in North-western China, Ministry of Education, Ningxia University, Yinchuan-750021, China.

Liu Zhu, Breeding Base of State Key Laboratory of Land Degradation and Ecological Restoration of North-western China, Ningxia University, Yinchuan-750021, China

and Key Laboratory for Restoration and Reconstruction of Degraded Ecosystem in North-western China, Ministry of Education, Ningxia University, Yinchuan-750021, China.

Xing Xu, Breeding Base of State Key Laboratory of Land Degradation and Ecological Restoration of North-western China, Ningxia University, Yinchuan-750021, China

and Key Laboratory for Restoration and Reconstruction of Degraded Ecosystem in North-western China, Ministry of Education, Ningxia University, Yinchuan-750021, China.

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Published

2019-12-31

How to Cite

Zhang, H., Yuan, C., Mao, G., Gao, X., Zhu, L., & Xu, X. (2019). Evaluation of saline-alkali and drought tolerance in maize varieties. Bangladesh Journal of Botany, 48(4), 1047–1063. https://doi.org/10.3329/bjb.v48i4.49053

Issue

Vol. 48 No. 4 (2019)

Section

Articles

License

© Bangladesh Botanical Society

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