TAILIEUCHUNG - Salt tolerance of sixteen wheat genotypes during seedling growth

Effect of increasing application of NaCl on germination, root and shoot dry weight at early growth stage, and concentrations of potassium (K) and sodium (Na) was studied in 16 bread wheat (Triticum aestivum L.) genotypes grown in nutrient solution. | Turk J Agric For 31 (2007) 363-372 © TÜB‹TAK Salt Tolerance of Sixteen Wheat Genotypes during Seedling Growth Seydi Ahmet BA⁄CI*, Hasan EK‹Z, Ahmet YILMAZ Bahri Da¤dafl International Agricultural Research Institute, . Box 125, Konya - TURKEY Received: Abstract: Effect of increasing application of NaCl on germination, root and shoot dry weight at early growth stage, and concentrations of potassium (K) and sodium (Na) was studied in 16 bread wheat (Triticum aestivum L.) genotypes grown in nutrient solution. Application of NaCl was carried out at concentrations of 2, 55, 117, 194, and 287 mM. The genotypes showed a wide range of variation for the traits measured under the NaCl treatments. The salt tolerance index (STI) of the genotypes, expressed as the ratio of dry matter yield produced under the NaCl treatments compared to the control treatment, was found to be a reliable criterion for ranking genotypes for their tolerance to NaCl. There was no relationship between the STI values and the shoot Na concentrations (R2 = ). By contrast, shoot K concentrations were very significantly correlated (R2 = **) with the STI values. Interestingly, some very tolerant genotypes contained similar or higher Na concentrations in shoots compared to the susceptible genotypes. The results indicate that the STI determined by the dry matter production and shoot K concentration is a reliable parameter for ranking genotypes for their tolerance to salt stress. The very poor correlation between the shoot Na concentration and the STI values indicates that the root uptake capacity for K and the tissue tolerance (., Na compartmentation) appear to be important physiological factors contributing to differential salt tolerance among the 16 bread wheat genotypes. This study also identified highly sensitive and tolerant genotypes to excess NaCl treatments (up to 287 mM) and these genotypes could be used in breeding programs and molecular physiological studies for .

• Nông nghiệp
• Genotypic variation
• Salt stress
• Salt tolerance index
• Wheat Triticum aestivum L
• Bread wheat genotypes
• Genetic advance
• Genotypic coefficient of variation
• Genotypic variance
• Phenotypic coefficient of variation
• phenotypic variance
• Boron deficiency
• Boron uptake
• Genotypic differences
• Oilseed rape
• Screening methods
• Recombinant inbred lines
• Phenotypic and genotypic coefficient
• Fibre quality traits
• Genetic variability
• Genetic improvement
• Heritability and phenotypic coefficient of variation
• Durum wheat Triticum durum genotypes
• Boron toxicity
• Boron concentration
• Durum wheat
• F2 populations
• Genotypic co efficient of variation
• Per cent of mean
• Solanum melongena
• Fruit borer infestation
• Solanum melongena L
• Genetically diverse genotypes
• China aster
• Phenotypic coefficients of variation
• Genotypic coefficients of variation
• Genetic advance as percentage of mean
• China aster varieties
• Mango cultivars
• Soybean varieties
• Simple selection
• Direct effect
• Rice (Oryza sativa L )
• Percentage of mean
• Gladiolus (Gladiolus grandiflora L )
• Genetic advances
• Wheat (Triticum aestivum L )
• Cold arid conditions of Kargil
• Genotypic coefficient variation
• Phenotypic coefficient variation
• Heritability percentage
• Different cashew landraces in Bhubaneswar
• Daucus carota
• Genetic advance over mean and genotypes
• Carrot genotypes (Daucus carota L )
• Garden pea
• Garden pea (Pisumsativum var hortense L )
• Gangetic plain conditions
• Genetic evaluation for yield
• Genetic gain
• Cotton improvement project
• Genetic component analysis
• Genetic advace in vegetable pea
• Study on genetic variability
• Evaluation of maize genotypes
• Maize genotypes
• BMC Genomics
• Copy number variation
• Multiple phenotypes
• Mosaicism describes
• Genotypic states
• Certain genomic segments exists
• Báo cáo lâm nghiệp hay
• cách trình bày báo cáo
• báo cáo lâm nghiệp
• công trình nghiên cứu lâm nghiệp
• tài liệu về lâm nghiệp
• Báo cáo sinh học hay
• báo cáo sinh học
• công trình nghiên cứu sinh học
• tài liệu về sinh học
• Sunflower Helianthus annuus L
• Seed yield
• Oilseed sunflower hybrids
• Sunflower genotypes grown