tailieunhanh - Screening of F2 population under higher iron toxic levels of hydroponics in rice

F2 population obtained from F1 cross between Tulasi (Most tolerant genotype) and CUL8709 (Most susceptible genotype). 300 F2 plants and their parents were screened at 800 ppm of Fe. Phenotyping screening of F2 plants under iron toxic levels indicated presence of wide variability for shoot length, root length, total number of roots, number of fresh roots, shoot weight, root weight and visual scoring for iron-toxicity symptoms. The measures of skewness and kurtosis for various traits revealed a large quantitative variability. All the above traits except iron content in root of F2 lines exhibited a positive platykurtic distribution pointing to presence of gene interaction in trait expression. Measures of skewness and kurtosis also indicated occurrence of transgressive segregation in the F2 population. Leaf bronzing the typical symptom of Fe toxicity, showed a strong negative correlation with shoot length, root length, total number of roots, number of fresh roots, shoot weight and root weight. The results indicated that leaf bronzing is associated with growth reduction due to Fe2+ toxicity in this F2 population. | Screening of F2 population under higher iron toxic levels of hydroponics in rice

• Sinh học
• Screening of F2 population
• Higher iron toxic levels
• Hydroponics in rice
• Transgressive segregation
• F2 population
• Chi square
• F1 population
• F3 population and rice
• Brown planthopper resistant in rice
• Genetic variability
• GCV and GAM
• Fiber quality traits
• Genetic variability parameters in F2 population
• Gossypium hirsutum L
• Skewness and kurtosis
• Variability and correlation
• Rice (Oryza sativa L )
• F2 population of BPT 5204
• Character association
• Skewness and platykurtic
• F2 population of rice
• Yield related traits
• Yield related traits in F2 population
• Oryza sativa
• Distribution of traits
• F2 intervarietal populations of rice
• Grain quality attributes
• Dual purpose
• F2 generations
• Cowpea (Vigna unguiculata (L
• ) Walp)
• Phosphorous content
• Grain yield
• Frequency distribution studies
• F2 segregating population
• Rice with phosphorous starvation tolerance gene
• Water and nitrogen use efficiency
• Marker validation
• Nitrogen use efficiency
• Rice (Oryza sativa L
• China aster
• Heritability and genetic advance
• Callistephus chinensis L
• Castor (Ricinus communis L )
• Genetic variability studies
• Wue related traits
• F2 mapping population of castor
• Interspecific cotton
• Inhibitory gene action
• Segregating F2 population
• Jassid (Amrasca biguttula biguttula)
• Resistance to Jassid
• Bacterial blight
• Resistant genes
• Durable resistance
• Bacterial blight pathogen
• F2 segregating population derived
• Correlation and path analysis
• Path analysis
• Quantitative traits in chickpea
• Genetic variability PCV
• Heritability study in F2 population
• Gossypium Barbadense L
• Gossypium Barbadense L cotton for yield
• Barnyard millet
• Association analysis in germplasm
• F2 segregating population of barnyard millet
• Nutritional traits
• Phenotypic correlation
• Path co efficient analysis
• Rabi sorghum
• Sorghum bicolor
• Yield and yield component traits
• Value addition
• Population distribution
• Normal distribution
• Gene interection
• Parent progeny regression
• F2 and F3 population
• High yielding
• Iron and zinc content genotype
• Segre gating population
• Yield and its attributing traits
• Gene action
• Solanum lycopersicum L
• Solanum habrochaites L
• Tomato (Solanum lycopersicum L )
• Linkage mapping
• QTL mapping
• SSR marker
• Bread wheat
• Mapping population
• Earliness in bread wheat
• BMC Genomics
• Immortalized F2 population
• Backcross population
• Inbreeding depression
• Over dominance
• Recombinant inbred line
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