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Evaluation of Morphological and Biochemical Characteristics of Sorghum [Sorghum bicolor [L.] Moench] Varieties in Response Salinity Stress
Annual Research & Review in Biology,
Salinity is among the most severe and widespread environmental constrains to global crop production, especially in arid and semi-arid climates and negatively affecting productivity of salt sensitive crop species. Breeding and selection of salt tolerant crop varieties is therefore necessary for sustainable plant productivity. Given that germination and seeding phases are the most critical phase in the plant life cycle, this study aimed to evaluate seed germination potential and associated traits under salt stress conditions as a simple approach to identify salt tolerant sorghum varieties [Gadam, Sc Sila and Serena] which are adaptated to various agroecological regions. Salinity stress was applied by addition of NaCl at three different levels of stress [100, 200 and 300 mM NaCl], while plants irrigated with water were used as control. Evaluation of tolerance was performed on the basis of germination percentage, shoot and seed water absorbance, shoot and root length, leave water content, seedling total chlorophyll content and morphologic abnormality. Our results showed that salinity stress significantly impacts all features associated with germination and early development of seedlings. Our results indicated that salinity stress substantially affects all traits associated with germination and early seedling growth, with the effect of salinity being dependent on the variety used and level of salinity stress applied. Among the tested sorghum varieties, Gadam was established to the most salt tolerant variety, suggesting its potential use for cultivation under salinity stress conditions as well as its suitability for use as germplasm material in future sorghum breeding programmes. For a greater insight into comprehensive mechanisms of salinity tolerance in sorghum, we suggest further research on genomic and molecular analysis.
- Chlorophyll content
- salinity stress
- salt tolerance
- relative water content.
How to Cite
Acosta MJ, Ortuño M, Bernal-Vicente A, Diaz-Vivancos P, Sanchez BM, Hernandez J. Plant responses to salt stress: Adaptive mechanisms. Agronomy. 2017;7(1):4-38.
Hanumantha RB, Nair RM, Nayyar H. Salinity and high temperature tolerance in mungbean [Vigna radiata [L.] Wilczek] from a physiological perspective. Frontiers in Plant Science. 2016;7:957.
Debez A, Belghith I, Pich A, Taamalli W, Abdelly C, Braun HP. High salinity impacts germination of the halophyte Cakile maritima but primes seeds for rapid germination upon stress release. Physiologia Plantarum. 2018;164(2):134-144.
McLaren JS, Lakey N, Osborne J. Sorghum as a bioresources platform for future renewable resources. In Proceedings 57th Corn and Sorghum Research Conference. CD ROM. American Seed Trade Association. Alexandria, VA, USA; 2003.
Igartua E, Gracia MP, Lasa JM. Field responses of grain sorghum to a salinity gradient. Field Crops Research. 1995;42(1):15-25.
Ramirez VJ, Jarvis A, Läderach P. Empirical approaches for assessing impacts of climate change on agriculture: The EcoCrop model and a case study with grain sorghum. Agricultural and Forest Meteorology. 2013;170:67-78.
Bibi A, Sadaqat HA, Tahir MHN, Akram HM. Screening of sorghum [Sorghum bicolor Var Moench] for drought tolerance at seedling stage in polyethylene glycol. Journal of Animal and Plant Sciences. 2012;22:671-678.
Niu G, Rodriguez DS. Responses of growth and ion uptake of four rose rootstocks to chloride-or sulfate-dominated salinity. Journal of the American Society for Horticultural Science. 2008;33:663- 669.
Amzallag GN, Lerner HR, Poljakoff MA. Induction of increased salt tolerance in Sorghum bicolor by NaCl pretreatment. Journal of Experimental Botany. 1990;41: 29-34.
Maswada HF, Djanaguiraman M, Prasad PVV. Seed treatment with nano‐iron [III] oxide enhances germination, seeding growth and salinity tolerance of sorghum. Journal of Agronomy and Crop Science. 2018;4(6):577-587.
Arnon DI. Copper enzymes in isolated chloroplasts. Polyphenoloxidase in Beta vulgaris. Plant Physiology. 1949;24(1):1-15.
De La Rosa-Ibarra M, Maiti RK. Biochemical mechanism in glossy sorghum lines for resistance to salinity stress. Journal of Plant Physiology. 1995;146(4): 515-519.
Mukami A, Ngetich A, Mweu C, Oduor RO, Muthangya M, Mbinda WM. Differential characterization of physiological and biochemical responses during drought stress in finger millet varieties. Physiology and Molecular Biology of Plants. 2019;26(4):837–846.
Khayamim S, Rouzbeh F, Poustini K, Sadeghian SY, Abbasi Z, Afshari RT. Seed germination, plant establishment, and yield of sugar beet genotypes under salinity stress. Journal of Agriculture, Science and Technology. 2018;16:779-790.
Bajji M, Kinet JM, Lutts S. Osmotic and ionic effects of NaCl on germination, early seedling growth, and ion content of Atriplex halimus [Chenopodiaceae]. Canadian Journal of Botany. 2002;80(3):297-304.
Dias LS, Dias AS, Pereira IP. Ionic effects of NaCl counter osmotic inhibition of germination and seedling growth of Scorzonera hispanica and subsequent plantlet growth is not affected by salt. Botany. 2015;93(8):485-496.
Ouji A, El-Bok S, Mouelhi M, Younes MB, Kharrat M. Effect of salinity stress on germination of five Tunisian lentil [Lens culinaris L.] genotypes. European Scientific Journal. 2015;11(21):1857–1870.
Majid A, Mohsen S, Mandana A, Saeid JH, Ezatollah E, Fariborz S. The effects of different levels of salinity and indole-3-acetic acid [IAA] on early growth and germination of wheat seedling. Journal of Stress Physiology & Biochemistry. 2013;9(4):329-338.
Nxele X, Klein A, Ndimba BK. Drought and salinity stress alters ROS accumulation, water retention, and osmolyte content in sorghum plants. South African Journal of Botany. 2017;108:261-266.
Silva ED, Ribeiro RV, Ferreira-Silva SL, Viégas RA, Silveira JAG. Comparative effects of salinity and water stress on photosynthesis, water relations and growth of Jatropha curcas plants. Journal of Arid Environments. 2010;74(10):1130-1137.
Chaves MM, Flexas J, Pinheiro C. Photosynthesis under drought and salt stress: Regulation mechanisms from whole plant to cell. Annals of Botany. 2009;103(4):551-560.
Romero L, Belakbir A, Ragala L, Ruiz JM. Response of plant yield and leaf pigments to saline conditions: Effectiveness of different rootstocks in melon plants [Cucumis melo L.]. Soil Science and Plant Nutrition. 1997;43:855-862.
Kalaji HM, Jajoo A, Oukarroum A, Brestic M, Zivcak M, Samborska IA, Ladle RJ. Chlorophyll a fluorescence as a tool to monitor physiological status of plants under abiotic stress conditions. Acta Physiologiae Plantarum. 2016;38(4):102-113.
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