tailieunhanh - Influence of foliar application of silicon on chlorophyll fluorescence, photosynthetic pigments, and growth in water-stressed wheat cultivars differing in drought tolerance

The influence of foliar application of silicon (Si) on chlorophyll contents, chlorophyll fluorescence, and growth of four wheat cultivars differing in drought tolerance (Sirvan and Chamran, as relatively drought tolerant, and Shiraz and Marvdasht, as drought sensitive) was examined under water deficit (100% and 40% .) created in a greenhouse. | Turkish Journal of Botany Turk J Bot (2015) 39: 625-634 © TÜBİTAK doi: Research Article Influence of foliar application of silicon on chlorophyll fluorescence, photosynthetic pigments, and growth in water-stressed wheat cultivars differing in drought tolerance 1 1, 2 Kobra MAGHSOUDI , Yahya EMAM *, Muhammad ASHRAF Department of Crop Production and Plant Breeding, College of Agriculture, Shiraz University, Shiraz, Iran 2 University College of Agriculture, University of Sargodha, Sargodha, Pakistan 1 Received: Accepted/Published Online: Printed: Abstract: The influence of foliar application of silicon (Si) on chlorophyll contents, chlorophyll fluorescence, and growth of four wheat cultivars differing in drought tolerance (Sirvan and Chamran, as relatively drought tolerant, and Shiraz and Marvdasht, as drought sensitive) was examined under water deficit (100% and 40% .) created in a greenhouse. The results showed that water deficit decreased shoot and root lengths, shoot dry weight, root dry weight, water utilization efficiency, chlorophyll a and b, and chlorophyll stability index. In contrast, foliar application of Si improved plant growth parameters and chlorophyll pigment concentration under water deficit; however, it did not significantly affect wheat growth under control conditions. Limited water supply reduced the values of minimal fluorescence from dark-adapted leaf (F0), maximal fluorescence from dark-adapted leaf (Fm), maximum quantum yield of PSII (Fv/Fm), effective quantum yield of PSII (ΦPSII), photochemical quenching (qP), and apparent photosynthetic electron transport rate (ETR). However, under water deficit, foliar application of Si application increased the earlier mentioned parameters. In contrast, nonphotochemical quenching (qN) and F0/Fm increased under water deficit, and application of Si further improved these parameters. Chlorophyll .

• Nông nghiệp
• Triticum aestivum L
• Nonphotochemical quenching coefficient
• Photosystem II
• Water deficiency
• Chlorophyll fluorescence
• Levels of zinc
• Growth and yield
• Wheat (Triticum aestivum L
• Loamy sand
• Genetic manipulation
• Genetic divesity
• Promising bread wheat
• Grain yield per plot
• Wheat (Triticum aestivum L )
• Elevated temperature
• Micronutrient accumulation in wheat
• Wheat (Triticum aestivum L ) grain
• Drought are major abiotic stress
• Wheat (Triticum aestivum L)
• Days to heading
• Thousand grain yield
• Bread wheat (Triticum aestivum L ) genotypes
• Yield attributing traits in bread wheat
• Yield attributing traits
• Character associations for yield
• Bread wheat (Triticum aestivum L )
• Germplasm lines of bread wheat
• Yield and quality traits
• Assessing genetic diversity
• Nutrient management approach
• Nutrient management approach on wheat
• Maximizing productivity
• Drip irrigation
• Drip fertigation system
• Response of wheat
• Organic manures
• Vermicompost and farmyard manure
• Poultry manure
• Yield components of Triticum aestivum L
• Triticum aestivum
• Productivity of wheat
• Herbicide application
• Nitrogen management on growth
• Marker assisted selection
• Leaf rust
• Resistance genes
• Tilletia indica
• Karnal Bunt
• Tilletia indica inciting karnal bunt
• Characterisation of isolates
• Allelopathic potentiachickpea
• Euphorbia helioscopia
• Germination growth
• Seedling growth
• Wheat Triticum aestivum L
• Molecular diversity
• SSR marker
• Weevil resistance
• Rice weevil (Sitophilus oryzae L )
• Crop residue
• Fungal consortium
• NAR and yield
• Mungbean cropping system
• Crop residue and potassium management
• Genome plasmon interaction
• Winter triticum aestivum L alloplasmatic lines
• L alloplasmatic lines
• Winter bread wheat
• Septoria disease
• Medium density fiberboard
• Manufacturing from wheat straw
• Straw wood mixture
• Fiber fiberboard
• Combining ability
• Correlation and path coefficient analysis
• Grain yield per spike
• Kernel number per spike
• Rare wheat Triticum aestivum L
• Functional Genomics
• Expressed sequence tag
• Complementary DNA
• Human genome
• Breeding of winter wheat
• Technological systems
• Environment friendly technologies
• Multifunctional agricultural production
• Bread wheat
• Disease resistance
• Yellow rust
• Polymerase chain reaction
• Field resistance of wheat
• Slow rusting
• Related yield
• Wheat growing areas of Turkey
• Genotype × environment interaction
• Nonparametric stability measures
• Bread wheat Triticum aestivum L
• Multi environment trials
• Wild oat densities
• Wheat Triticum aestivum
• Nitrogen levels
• Protein content
• Varying nitrogen regimes
• Nanochitosan treatment
• Plasma treatment
• Seed coat etching
• Target action
• Grain yield
• Residual zinc
• Divergent characteristics
• ) grown
• Zn fertilization
• Residual effect of Zn