Yield characterization of Mediterranean barley under drought stress condition

Hellal, Farid; Abdel-Hady, Mohamed; Khatab, Ismael A.; El-Sayed, Saied; Abdelly, Chédly

doi:10.3934/agrfood.2019.3.518

Cited by 15 publications

(6 citation statements)

References 13 publications

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“…In this regard, water stress during the grain-filling period reduced grain yield by decreasing the number of tillers m -2 and 1000 grain weight, as it is more critical phase and results in substantial yield losses. Similar observations have been reported in many studies of the water stress response of barley (El Rabey et al, 2012;Mariey et al, 2017;Mariey et al, 2018;Khatab et al, 2019;and Hellal et al, 2019),Which they reported that Water stress treatments imposed at different growth stages reduced significantly the grain yield and yield components.…”

Section: Combined Performance Of Egyptian Barley Cultivarssupporting

confidence: 87%

“…Genetic diversity and genetic relationship among barley genotypes for drought (water stress) conditions were investigated using different DNA markers such as RAPD (Nazari and Pakniyat, 2010), ISSR markers (Khatab et al, 2019), SCAR marker (Ben Naceur et al, 2018) and SRAP markers (Mariey et al, 2018 andHellal et al, 2019). In this experiment, we using SSR marker to study the genetic diversity among 15 Egyptian barley cultivars for water stress tolerance.Twenty alleles were produced as a result of fingerprinting ten SSR primers ranging from one to four alleles per locus with an average value of 2.0 alleles per locus and the average of PIC value was 0.227 that signified these set of SSR markers were favorably informative.…”

Section: Genetic Similarity Coefficient Matrixmentioning

confidence: 99%

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Genetic Diversity of Egyptian Barley Cultivars for Water Stress using SSR Markers

2020

Int. J. Environ.

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Abiotic stresses in particular water stress which was considered important stress that affecting all crops in all the world and Egypt. The aim of the present work was to evaluate the performance of 15 Egyptian barley cultivars and find out the genetic diversity of these cultivars for water stress tolerance using simple sequence repeats (SSR) during two consecutive seasons to detect their tolerance to water stress. Results revealed that the Egyptian barley Giza 126, Giza 131 and Giza 2000 were considered as tolerant cultivars, which they exhibited the highest mean values for all studied morphological and physiological traits. Twenty alleles were produced as a result of fingerprinting ten SSR primers ranging from one to four alleles per locus with a mean value of 2.0 alleles per locus .The PIC (Polymorphism Information Content) value of each SSR marker ranged from 0.23 (HvM67) to 0.58 (EBmac 624) with an average value of 0.227. Un-weighted Pair-Group Method with Arithmetic (UPGMA) cluster analysis of the similarity data grouped all the fifteen studied Egyptian cultivars into two major groups divided according to their response to water stress tolerance; first group include all the water stress tolerant cultivars and moderately tolerant in two closely related clusters, while all the sensitive genotypes and moderate cultivars in the other group were closely related in two clusters. These results proposed that SSR markers are professional and detective tool for assessment of genetic diversity and relatedness as well as distinguishing the Egyptian barley cultivars for water stress tolerance to use them in breeding program.

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Section: Combined Performance Of Egyptian Barley Cultivarssupporting

confidence: 87%

Section: Genetic Similarity Coefficient Matrixmentioning

confidence: 99%

Genetic Diversity of Egyptian Barley Cultivars for Water Stress using SSR Markers

2020

Int. J. Environ.

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“…The barley North African collection used in this study contains nine Moroccan genotypes that correspond to commercialized varieties (herein named M1 to M9), one Tunisian variety (herein named T6), and one Egyptian variety (herein named E6) Table 1. The North African barley collection used in this study displays different characteristics in particular, with regard to their yield and tolerance to drought (Hellal et al, 2019) and it was recently described for its response to Cd (Ayachi et al, 2021). The European cultivar Golden Promise (herein named GP), which is a reference genotype since its genome is fully sequenced and for which Agrobacterium-mediated transformation is possible (Schreiber et al, 2020), was included in the analyses as a reference line.…”

Section: Plant Materials and Growth Conditionsmentioning

confidence: 99%

Genotypic Variation of Nitrogen Use Efficiency and Amino Acid Metabolism in Barley

et al. 2022

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Owing to the large genetic diversity of barley and its resilience under harsh environments, this crop is of great value for agroecological transition and the need for reduction of nitrogen (N) fertilizers inputs. In the present work, we investigated the diversity of a North African barley genotype collection in terms of growth under limiting N (LN) or ample N (HN) supply and in terms of physiological traits including amino acid content in young seedlings. We identified a Moroccan variety, Laanaceur, accumulating five times more lysine in its leaves than the others under both N nutritional regimes. Physiological characterization of the barley collection showed the genetic diversity of barley adaptation strategies to LN and highlighted a genotype x environment interaction. In all genotypes, N limitation resulted in global biomass reduction, an increase in C concentration, and a higher resource allocation to the roots, indicating that this organ undergoes important adaptive metabolic activity. The most important diversity concerned leaf nitrogen use efficiency (LNUE), root nitrogen use efficiency (RNUE), root nitrogen uptake efficiency (RNUpE), and leaf nitrogen uptake efficiency (LNUpE). Using LNUE as a target trait reflecting barley capacity to deal with N limitation, this trait was positively correlated with plant nitrogen uptake efficiency (PNUpE) and RNUpE. Based on the LNUE trait, we determined three classes showing high, moderate, or low tolerance to N limitation. The transcriptomic approach showed that signaling, ionic transport, immunity, and stress response were the major functions affected by N supply. A candidate gene encoding the HvNRT2.10 transporter was commonly up-regulated under LN in the three barley genotypes investigated. Genes encoding key enzymes required for lysine biosynthesis in plants, dihydrodipicolinate synthase (DHPS) and the catabolic enzyme, the bifunctional Lys-ketoglutarate reductase/saccharopine dehydrogenase are up-regulated in Laanaceur and likely account for a hyperaccumulation of lysine in this genotype. Our work provides key physiological markers of North African barley response to low N availability in the early developmental stages.

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“…Proline content varied from 1.36 µmol g -1 MF for Rihane 03 to 2.79 µmol g -1 MF for G4 with 2.06 µmol g -1 MF as mean of all genotypes. Hellal et al (2020) reported that Tunisian barley varieties (Kebili-3 and Sidi-Bou) under drought stress gained the highest proline content and the lowest proline value was attained by Tombari (at ear emergence). Lowermolecular-weight osmolytes, as proline, glycine, betaine and organic acids and polyols are crucial to maintain cellular functions under the drought stress condition (Farooq et al, 2009).…”

Section: Resultsmentioning

confidence: 99%

Assessment of Some Physiological and Biochemical Traits for Selection of Tolerant Barley Genotypes (Hordeum vulgare L.) in Rainfall Conditions

Berkane,

Bendada,

Frih

et al. 2023

ASD

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Background: in this study we aim to evaluate some physiological and biochemical important traits for the selection of tolerant Barley genotypes in the rainfall conditions. Methods: This experiment was conducted during the cropping season (2020-2021) at the experimental field of ITGC, Setif, Algeria. Ten genotypes of barley were used in this study to evaluate their performances with Chlorophyll contents, relative water contents, drought sensitivity index, proline content, total soluble sugar content, thousand kernels weight and grain yield. The seeds were sown using an experimental drill in 1.2 m x 5 m plots consisting of 6 rows with a 20 cm row space and the seeding rate is about 250 seeds per m2. Result: Analysis of variance showed that genotype effect was significatif to very high significatif with all studied parameters, the origin of the genotypes tested was only influenced the drought sensitivity index while the row type had a significatif effect on drought sensitivity index and proline contents grain yield was positively correlated with relative water contents however, thousand kernels weight was negatively correlated with relative water contents and Total soluble sugar content. Principal components analysis showed that PC1 was a physio-biochemical axis and the genotypes related to this axis had high values of these traits, while PC2 was a yield and drought tolerance axis and their related genotypes were the most yielding genotypes.

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Yield characterization of Mediterranean barley under drought stress condition

Cited by 15 publications

References 13 publications

Genetic Diversity of Egyptian Barley Cultivars for Water Stress using SSR Markers

Genetic Diversity of Egyptian Barley Cultivars for Water Stress using SSR Markers

Genotypic Variation of Nitrogen Use Efficiency and Amino Acid Metabolism in Barley

Assessment of Some Physiological and Biochemical Traits for Selection of Tolerant Barley Genotypes (Hordeum vulgare L.) in Rainfall Conditions

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