Version 1
: Received: 14 March 2023 / Approved: 14 March 2023 / Online: 14 March 2023 (06:51:35 CET)
How to cite:
Alshiekheid, M.A.; Dwiningsih, Y.; Alkahtani, J. Analysis of Morphological, Physiological, and Biochemical Traits of Salt Stress Tolerance in Asian Rice Cultivars at Different Stages. Preprints2023, 2023030251. https://doi.org/10.20944/preprints202303.0251.v1
Alshiekheid, M.A.; Dwiningsih, Y.; Alkahtani, J. Analysis of Morphological, Physiological, and Biochemical Traits of Salt Stress Tolerance in Asian Rice Cultivars at Different Stages. Preprints 2023, 2023030251. https://doi.org/10.20944/preprints202303.0251.v1
Alshiekheid, M.A.; Dwiningsih, Y.; Alkahtani, J. Analysis of Morphological, Physiological, and Biochemical Traits of Salt Stress Tolerance in Asian Rice Cultivars at Different Stages. Preprints2023, 2023030251. https://doi.org/10.20944/preprints202303.0251.v1
APA Style
Alshiekheid, M.A., Dwiningsih, Y., & Alkahtani, J. (2023). Analysis of Morphological, Physiological, and Biochemical Traits of Salt Stress Tolerance in Asian Rice Cultivars at Different Stages. Preprints. https://doi.org/10.20944/preprints202303.0251.v1
Chicago/Turabian Style
Alshiekheid, M.A., Yheni Dwiningsih and Jawaher Alkahtani. 2023 "Analysis of Morphological, Physiological, and Biochemical Traits of Salt Stress Tolerance in Asian Rice Cultivars at Different Stages" Preprints. https://doi.org/10.20944/preprints202303.0251.v1
Abstract
Rice (Oryza sativa L.) is a primary energy food for Asian population. One of the most constraints in rice production is soil salinity because of the rice is very susceptible to salt. Meanwhile, many agricultural land in Asia are in the saline area. It is important to identify and develop salt-tolerant rice varieties that can adapt in Asian climate. By combining morphological, physiological, and biochemical assessments for screening the salt tolerant of 116 Asian rice cultivars was able to classify into tolerant, moderate, and sensitive rice cultivars under salinity stress condition, and also for understanding the salt tolerance mechanisms. The rice cultivars which belong to salt-tolerant including Pokkali from India, TCCP 266 from Philippines, IR 45427 also from Philippines, and Namyang 7 from Korea. Whereas, salt-sensitive rice varieties like IR29 from Philippines, IR58 also from Philippines, Daegudo from Korea, and Guweoldo also from Korea. The salt-tolerant varieties showed signs of tolerance, including lower percent reduction of percentage germination, root length, root fresh weight, shoot length, plant biomass, and chlorophyll content. In order to maintain the cellular osmotic balance under saline condition, the salt-tolerant ones exhibited less membrane damage, lower Na/K ratio, high proline and sugar accumulation, lower malondialdehyde (MDA) and hydrogen peroxide (H2O2). Pokkali from India, TCCP 266 from Philippines, IR 45427 also from Philippines, and Namyang 7 from Korea are recommended as valuable germplasm resource for Asian rice breeding program in saline agricultural area.
Keywords
Asian rice; salt stress; morphology; physiology; biochemistry
Subject
Biology and Life Sciences, Agricultural Science and Agronomy
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
