Growth and Physiological Responses of Maize and Sorghum Genotypes to Salt Stress
Joint Authors
Rodriguez, Denise
Niu, Genhua
Xu, Wenwei
Sun, Youping
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-10-16
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
The growth and physiological responses of four maize inbred lines (CUBA1, B73, B5C2, and BR1) and four sorghum hybrids (SS304, NK7829, Sordan 79, and KS585) to salinity were determined.
Fifteen days after sowing, seedlings were irrigated with nutrient solution (control) at electrical conductivity (EC) of 1.5 dS m−1 or saline solution at EC of 8.0 dS m−1 (salt treatment) for 40 days.
Dry weight of shoots in maize was reduced by 58%, 65%, 62%, and 69% in CUBA1, B73, B5C2, and BR1, respectively, while that of sorghum was reduced by 51%, 56%, 56%, and 76% in SS304, NK7829, Sordan79, and KS585, respectively, in the salt treatment compared to their respective control.
Salinity stress reduced all or some of the gas exchange parameters, leaf transpiration (E), stomatal conductance (gs), and net photosynthetic rate (Pn) in the late part of the experiment for both crops.
Salinity treatment greatly increased Na+ uptake in all maize genotypes but did not affect the Na+ uptake in sorghum, regardless of genotype.
In maize, CUBA1 was slightly more resistant to salt stress, while BR1 was more sensitive to salt stress.
In sorghum, Sordan79 was the most tolerant genotype, and KS585 was the least tolerant genotype.
American Psychological Association (APA)
Niu, Genhua& Xu, Wenwei& Rodriguez, Denise& Sun, Youping. 2012. Growth and Physiological Responses of Maize and Sorghum Genotypes to Salt Stress. ISRN Agronomy،Vol. 2012, no. 2012, pp.1-12.
https://search.emarefa.net/detail/BIM-449271
Modern Language Association (MLA)
Niu, Genhua…[et al.]. Growth and Physiological Responses of Maize and Sorghum Genotypes to Salt Stress. ISRN Agronomy No. 2012 (2012), pp.1-12.
https://search.emarefa.net/detail/BIM-449271
American Medical Association (AMA)
Niu, Genhua& Xu, Wenwei& Rodriguez, Denise& Sun, Youping. Growth and Physiological Responses of Maize and Sorghum Genotypes to Salt Stress. ISRN Agronomy. 2012. Vol. 2012, no. 2012, pp.1-12.
https://search.emarefa.net/detail/BIM-449271
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-449271