TAILIEUCHUNG - Correlation and path coefficient analysis for some yield related traits in rice (Oryza sativa L.) under thrace conditions

These traits may also be utilised for pure line selection in late generations. However, both high biological yield and high harvest index should be taken into account together in this selection due to their negative correlations and indirect effects each other. | Turk J Agric For 27 (2003) 77-83 © TÜB‹TAK Correlation and Path Coefficient Analysis For Some Yield-Related Traits in Rice (Oryza Sativa L.) Under Thrace Conditions Halil SÜREK, Necmi BEfiER Thrace Agricultural Research Institute, . Box 16, Edirne - TURKEY Received: Abstract: The associations among yield components, and their direct and indirect influence on the grain yield of rice were investigated. For this purpose, 80 breeding lines derived from 11 different cross populations in the F6 generation and their 10 parents were tested in a randomised complete block experiment design with two replications at the Thrace Agricultural Research Institute in 1995. According to the results from the first year, 49 breeding lines were selected, and they and their 10 parents were tested in a randomised complete block experiment design with three replications in the same institute in 1996. The phenotypic correlations among the traits and their path coefficient were estimated in both years. Grain yield was significantly correlated with its component characters like the number of productive tillers per square metre (r = ** and r = **), biological yield (r = ** and r = **), harvest index (r = ** and r = **), and the number of filled grains per panicle (r = ** and r = **) in both years. Path coefficient analysis revealed that biological yield ( and ) and harvest index ( and ) had the highest positive direct effects on grain yield in both years. In addition, the yield components had positive direct effects on grain yield. According to the magnitude of the direct effects on grain yield, the order of yield components was the number of filled grain per panicle ( and > the number of productive tillers per square metre ( and ) > 1000-grain weight ( and ). The improvement in grain yield will be efficient, if the selection is based on the biological yield, the harvest index, the .

• Nông nghiệp
• Rice Oryza sativa L
• ) Path coefficient
• Phenotypic correlation
• Yield components
• Biological yield
• 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