Journal
SCIENTIA HORTICULTURAE
Volume 126, Issue 2, Pages 247-252Publisher
ELSEVIER
DOI: 10.1016/j.scienta.2010.07.027
Keywords
Apple rootstock; Physiological response; Salt injury index; Salt stress
Categories
Funding
- Agriculture Ministry of China [2006-G28]
- China Postdoctoral Science Foundation [20060390310]
- Modern Agricultural Industry Technology System in China
Ask authors/readers for more resources
The physiological responses and salt tolerance of apple rootstocks were evaluated under high salinity. Seedlings of 15 kinds of apple rootstocks were treated with 200 mM NaCl for 10 cl to assess growth, biomass, and physiological responses. Under NaCl stress, their growth parameters decreased compared with the control, with the greatest changes in leaf number, plant height, and relative water content (RWC). In contrast, electrolyte leakage (EL) and activities of peroxidase (POD) and catalase (CAT) were increased. For most rootstocks, stress treatment decreased malondialdehyde (MDA) and soluble protein contents along with superoxide dismutase (SOD) activity. Their degree of salt tolerance was comprehensively evaluated based on salt injury index (SI), adversity resistance coefficients (ARC), and cluster analysis. Malus prunifolia Borkh cv. dongbeihuanghaitang. M. sieboldii Rehd cv. daguohongsanyehaitang, M. prunifolia Borkh cv. qiuzi, and M. xiaojinensis Cheng et Jia were salt-tolerant rootstocks, whereas M. prunifolia Borkh cv. yingyehaitang, M. micromalus Hems!, and M. sieboldii Rehd cv. lushihongguo were salt-sensitive rootstocks. These differences in sensitivity were associated with variations in the activities of anti-oxidation enzymes and in the amount of organic osmotica. (C) 2010 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available