Evaluating salt tolerance of wheat genotypes using multiple parameters

El-Hendawy, Salah; Hu, Yuegao; Yakout, G. M.; Awad, A. L.; Hafiz, Salah E.; Schmidhalter, Urs

doi:10.1016/j.eja.2004.03.002

Cited by 188 publications

(166 citation statements)

References 24 publications

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“…Our result supported by previous finding, i.e., grain yield reduced via affecting spike growth (Mass and Grieve 1990), by reducing the number of fertile tillers (El-Hendawy et al 2005), by reducing spikelet fertility (Grieve et al 1993) and reduction of 15% in yield in stressed plants compared to control of two main Mexican dwarf wheat varieties under salinity (Grieve and Francois 1992).…”

Section: Discussionsupporting

confidence: 81%

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Evaluation of Selected Indian Bread Wheat (Triticum aestivumL.) Genotypes for Morpho-physiological and Biochemical Characterization under Salt Stress Conditions

Singh¹,

Sengar²

2016

Cereal Research Communications

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Wheat is the second most important crop after rice in India and occupies approximately 28.5 million hectare area. Salinity is one of the major factors reducing plant growth and productivity worldwide, and affects about 7% of world's total land area. In India about 6.73 million hectare land area is salt affected. The aim of this study was to investigate the morpho-physiological and biochemical response of wheat to temporal salinity (EC iw = 10.0 dSm -1 ) exposures. Ten wheat genotypes were evaluated in two successive growing seasons (2012)(2013)(2014), with complete randomized design with three replications under both salinity stress and non-stress conditions. The morpho-physiological and biochemical character measured in this investigation, inhibited under both salt stresses (S1 & S2) conditions but much more significantly inhibited under long-term salinity exposure (S2) than S1 because interrupting the metabolic process of plant, resulting in reduced growth and productivity. According to correlation result, selection of high yield genotypes can be done based on plant height (0.649*), tiller plant -1 (0.808**) and leaf area (0.687*). The multivariate morphophysiological and biochemical parameters should be further used to develop salinity tolerance in wheat breeding improvement programmes.

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Section: Discussionsupporting

confidence: 81%

“…Tiller plant -1 is most salinity sensitive trait in wheat (El-Hendawy et al 2005). Thus to increase yield under stress condition it is necessary to maintain high plant density.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of Selected Indian Bread Wheat (Triticum aestivumL.) Genotypes for Morpho-physiological and Biochemical Characterization under Salt Stress Conditions

Singh¹,

Sengar²

2016

Cereal Research Communications

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“…These physicochemical effects upon the seed seem to result in a slower and/or lower rate of germination or emergence. Both osmotic and toxic effects of salts have been implicated in inhibition of seed germination (El-Hendawy 2005). In our study, it appears that sensitivity to PEG and NaCl between cultivars is different at the germination stage compared with the seedling emergence, given that both cultivars showed 100% of final germination percentage in NaCl solutions ( Figure 2A, B); however, in PEG solution, this decreased as osmotic potentials increased ( Figure 1C).…”

Section: Discussionmentioning

confidence: 56%

Response of durum wheat (Triticum durum Desf.) growth to salt and drought stresses

Rhouma¹,

Bchini²,

Mosbahi³

et al. 2010

CZECH J GENET PLANT

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Abstract:Two durum wheat (triticum durum Desf.) cultivars were tested for salt and drought tolerance at germination, seedling emergence and early seedling growth in NaCl and PEG-8000 solutions of different osmotic potentials . Daily and final germination and emergence percentage, as well as germination and seedling emergence rate, seedling growth, fresh and dry weight were recorded under controlled conditions. Results showed that germination and emergence rates were delayed by both solutions in both cultivars, but Omrabia showed higher germination and emergence rates than BD290273 in NaCl while BD290273 was less affected by NaCl and PEG solutions at the emergence stage. Sodium chloride had a lesser effect on both cultivars in terms of germination rate, emergence rate, final germination and emergence percentage than did PEG-8000. This conclusively proves that the adverse effect of PEG-8000 on germination, emergence and early seedling growth was due to the osmotic effect rather than to the specific ion. Seedling growth was reduced by both stresses. However, NaCl usually caused less damage than PEG to durum wheat seedlings, suggesting that NaCl and PEG acted through different mechanisms.

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“…Multivariate analyses based on morphological and physiological parameters proved to be valuable tools for the description and the classification of the genotypes but also for the identification of salt tolerant genotypes. Previously, these statistical tools were also identified as powerful for the identification of salt tolerant accession in crop collection species such as rice (Cha-um et al 2009), green gram (Ahmad et al 2005), wheat (El-Hendawy et al 2005), tomato (Juan et al 2005), sugarcane (Cha-um et al 2012), pea-nut ) and cauliflower (Zhu et al 2012).The advantages of using this method in the evaluation of salt tolerance are: (i) PCA allows a simultaneous analysis of multiple parameters to increase the accuracy of the genotype ranking at different salt levels (Jianjie et al 2013) (ii) it allows the visualization of differences among individuals as well as (iii) the identification of possible groups and the establishment of relationships among individuals and variables (Martinez-Calvo et al 2008). It has been well documented that plant growth and development can be affected differently by several salt stress concentrations at various growth stages.…”

Section: Discussionmentioning

confidence: 99%

Identification of barley landrace genotypes with contrasting salinity tolerance at vegetative growth stage

Chikha

Hessini

Ourteni

et al. 2016

Plant Biotechnology

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In the present study, we evaluated the behavior of 21 Tunisian barley landraces under salt stress. The evaluation was performed using 14 morphological and physiological traits at vegetative growth stage under severe salt stress (200 and 250 mM). A multivariate analysis was used in order to select the genotypes with contrasting behavior towards salinity and to identify the major traits conferring salinity tolerance. According to the PCA analyses the genotypes exhibited diverse behavior with the salt stress concentration, indeed 3 different clustering profiles were obtained. Eleven quantitative characters were considered the most pertinent for the ranking of genotypes for salt tolerance. Among them the total fresh weight and the net CO 2 assimilation rate were the most discriminating descriptors at 250 mM NaCl. These parameters allowed as the identification of the contrasting pair genotypes toward salinity. "Testour" was classified as the most sensitive and "Enfidha" the most tolerant toward salinity stress. These findings would be of great relevance in breeding programs.

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Evaluating salt tolerance of wheat genotypes using multiple parameters

Cited by 188 publications

References 24 publications

Evaluation of Selected Indian Bread Wheat (Triticum aestivumL.) Genotypes for Morpho-physiological and Biochemical Characterization under Salt Stress Conditions

Evaluation of Selected Indian Bread Wheat (Triticum aestivumL.) Genotypes for Morpho-physiological and Biochemical Characterization under Salt Stress Conditions

Response of durum wheat (Triticum durum Desf.) growth to salt and drought stresses

Identification of barley landrace genotypes with contrasting salinity tolerance at vegetative growth stage

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