TAILIEUCHUNG - Physiological responses of two Turkish rice (Oryza sativa L.) varieties to salinity

The results showed that the varieties tested expressed different adaptation mechanisms under salt stress however, the increase of leaf proline accumulation was a general indicator for responses to salt stress in all cultivars. | Research Article Turk J Agric For 34 (2010) 451-459 © TÜBİTAK doi: Physiological responses of two Turkish rice (Oryza sativa L.) varieties to salinity Özgür TATAR1, Holger BRUECK2, Mithat Nuri GEVREK1, and Folkard ASCH2,* 1Ege University, Faculty of Agriculture, Department of Field Crops, İzmir - TURKEY 2University of Hohenheim, Institute for Crop Production and Agroecology in the Tropics and Subtropics, Garbenstr. 13, 70599 Stuttgart - GERMANY Received: Abstract: Effects of salinity (60 mM NaCl) on 2 Turkish rice varieties (Kıral and Yavuz) were studied in comparison to 2 international check varieties (IR4630-22-2 tolerant and IR31785-58-1-2-3-3 susceptible) in 2 hydroponic and 1 outdoor soil-based pot experiments. Partitioning of dry matter, leaf chlorophyll concentration, K+ and Na+ uptake, and proline accumulation in the leaves were investigated under both control and salt stress conditions. Dry matter accumulation decreased with salt stress in all varieties, with the decreases being more pronounced in IR31785 and Kıral. The results showed that the varieties tested expressed different adaptation mechanisms under salt stress; however, the increase of leaf proline accumulation was a general indicator for responses to salt stress in all cultivars. Key words: Chlorophyll, K/Na ratio, proline, rice, salinity İki Türk çeltik çeşidinin (Oryza sativa L.) tuzluluğa karşı fizyolojik reaksiyonları Özet: Tuzluluğun (60 mM NaCl) 2 Türk çeltik çeşidi (Kıral ve Yavuz) üzerine etkileri, 2 adet uluslar arası olarak onaylanmış dayanıklı (IR4630-22-2) ve hassas (IR31785-58-1-2-3-3) çeşit ile karşılaştırmalı olarak 2 besin ortamı ve 1 + + açık alan saksı denemesi ile çalışılmıştır. Kuru madde dağılımı, yaprak klorofil içeriği, K ve Na alınımı ve yapraktaki prolin birikimi hem kontrol hem de tuzluluk koşulları altında incelenmiştir. Tuzluluğun etkisi ile kuru madde üretimi tüm çeşitlerde düşmüştür ve tuzluluğun düşüşü IR31785 ve Kıral .

• Nông nghiệp
• Rice Oryza sativa L
• Salt stress
• Physiological responses
• Soil based pot experiments
• Nutritional imbalances
• Rice (Oryza sativa L )
• Identification of transgressive segregants
• Transgressive segregants
• High zinc in grains
• Aerobic condition in F4 population
• F4 population of rice
• Genetic variability
• GCV and soft rice
• Genetic variability parameters
• Soft rice (Oryza sativa L )
• Rice (Oryza sativa L ) genotypes
• Rice (Oryza sativa L
• Heritability and genetic advance
• Genetic advance
• Management of rice (Oryza sativa L )
• Seed biopriming
• Sheath rot
• Sheath blight
• Disease incidence and disease severity
• Tarai region
• Growth and yield
• Fertilization modules
• Yield of rice (Oryza sativa L )
• Correlation and path coefficient
• JNPT Lines Oryza sativa
• Quality traits in JNPT lines
• JNPT lines of rice
• Oryza sativa
• Backcross inbred lines
• Backcross inbred lines of IR64 rice
• IR64 rice (Oryza sativa L
• Introgressed with drought QTLs
• Varied moisture regimes
• Different seasons
• Quantitative genetic variations
• Grain protein content
• Rice and segregating lines
• Parental Polymorphism Survey
• Correlation coefficient
• Direct and indirect effect
• Yield traits in rainfed rice
• Rainfed rice (Oryza sativa L )
• CMS lines
• Spikelet fertility
• Test crosses
• Maintainers in rice
• Genetic behaviour
• Awning character in rice
• Rice germplasm
• Genetics of awning in rice
• F2 population
• Water and nitrogen use efficiency
• Marker validation
• Nitrogen use efficiency
• Low light stress
• Growth parameters
• Leaf area index were increased
• Direct seeded rice
• Opportunities and strategies
• Aerobic rice
• Aerobic rice (Oryza sativa L)
• Natural resources
• Rice landraces
• Cultivated rice
• Linear model
• Rice breeding
• SSR markers
• Heritability and rice
• Elite rice (Oryza sativa L )
• Association analysis in elite rice
• Elite rice germplasm
• Candidate gene
• ZIP Family
• Candidate gene based markers
• Family transporter sequences of rice
• Oryza sativa L
• Planting geometry
• Yield performance
• Oryza sativa aerobic system
• Yield performance of rice
• Yield and yield related traits in rice
• Yield related traits in rice
• Irrigated and drought stress condition
• Customized fertilizer
• Inorganic nutrients
• Rice wheat cropping system
• Organic and inorganic nutrients
• Morphological responses
• Foliar application
• Seedlings rice
• Seedlings on growth
• Yield of rice
• Foliar application of iron
• Nutrient management
• Growth and yield of rice
• Nutrient management practices
• Genetic diversity
• D 2 Analysis
• Direct seeding traits
• Elite genotypes of rice
• Yield and rice
• Different weed management practices
• Weed management practices on yield
• Nutrient uptake
• Kharif drilled rice
• Genetic advance in boro rice
• Boro rice
• Boro rice (Oryza sativa L )
• Grain yield per plant