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Field responses of barley genotypes across a salinity gradient in an arid Mediterranean environment
Faculty
Agriculture
Year:
2021
Type of Publication:
ZU Hosted
Pages:
Authors:
Alsayed Mansour Elsayed Gumaa
Staff Zu Site
Abstract In Staff Site
Journal:
Agricultural Water Management Elsevier
Volume:
Keywords :
Field responses , barley genotypes across , salinity
Abstract:
Salinity is one of the most widespread abiotic stresses affecting crop growth and productivity, particularly when soil and irrigation water are salty. Field experiments were performed in an arid Mediterranean climate to investigate agronomic responses of twenty-one diverse barley genotypes to naturally occurring salinity. Three saline fields (7.72 dS/m) were irrigated with well water of three incremental salinity levels, low (5.25 dS/m), intermediate (8.35 dS/m), and high (11.12 dS/m). The results revealed considerable genotypic variability at the three salinity levels and significant genotype by salinity interaction that could be traced to specific yield components. Increasing salinity level decreased performance of all agronomic traits, but with different patterns, with yield components determined earlier being more affected than traits determined later. Days to heading exhibited a strong and negative relationship with grain yield across all salinity levels, while 1000-grain weight demonstrated the highest association with grain yield, followed by number of grains per spike, plant height, and harvest index, consistently at the three salinity levels. The genotypes were classified based on their yield indices at the three salinity levels into six groups varying from highly salt-tolerant (group A) to highly salt-sensitive genotypes (group F). Genotype-by-salinity interaction was studied based on rankings of performance across salinity levels. Close examination of yield component trends across levels allowed the identification of genotypes with different behaviors, indicating the presence of variation in potentially different mechanisms of response to salinity. This diversity of responses could be used in breeding to improve tolerance over the whole crop cycle, from plant establishment and tillering to grain filling.
Author Related Publications
Alsayed Mansour Elsayed Gumaa, "Assessing the Response of Diverse Sesame Genotypes to Waterlogging Durations at Different Plant Growth Stages", MDPI, 2021
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Alsayed Mansour Elsayed Gumaa, "Combining Ability and Gene Action Controlling Grain Yield and Its Related Traits in Bread Wheat under Heat Stress and Normal Conditions", MDPI, 2021
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Alsayed Mansour Elsayed Gumaa, "Molecular Genetic Diversity and Line × Tester Analysis for Resistance to Late Wilt Disease and Grain Yield in Maize", MDPI, 2021
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Alsayed Mansour Elsayed Gumaa, "Enhancement of drought tolerance in diverse Vicia faba cultivars by inoculation with plant growth-promoting rhizobacteria under newly reclaimed soil conditions", Nature, 2021
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Alsayed Mansour Elsayed Gumaa, "Sowing Date and Genotype Influence on Yield and Quality of Dual-Purpose Barley in a Salt-Affected Arid Region", MDPI, 2021
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Department Related Publications
Ahmed Mansour Mohamed Mansour Elzohery, "Genes, Genomes and Genomics", Global Science Books, Ltd, 2010
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Ahmed Mansour Mohamed Mansour Elzohery, "Bio-fertilizer and organic manure affects rice productivity in newly reclaimed saline soil.", Dynamic Soil, Dynamic Plant 2009, 2009
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Ahmed Mansour Mohamed Mansour Elzohery, "From PCR to the Bioinformatics Era and Integrative Biology The Digitalization of Life", Global Science Books, Ltd, 2009
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Ahmed Mansour Mohamed Mansour Elzohery, "Gene-Tracer: Algorithm Tracing Genes Modification from Ancestors through Offsprings", International Journal of Computer Applications (IJCA), 2012
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Ahmed Hosieny Abdou Mhamd, "Nile Tilapia as bio indicator to estimate the contamination of water using SDS-PAGE and RAPA-PCR techniques", faculty of Agr. Ain Shams University, 2012
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