tailieunhanh - Genetic variability for yield and yield contributing traits of rice under aerobic condition in Assam, India

An investigation had been taken up to assess few rice genotypes for their inclusion in breeding programme to develop varieties suitable for aerobic cultivation. The experiment was carried out at the experimental field of Sarat Chandra Sinha College of Agriculture, Assam Agricultural University, Dhubri. Evaluation of fifteen rice genotypes, comprising ten traditional cultivars and five high yielding varieties both in aerobic and irrigated lowland situations revealed sufficient variability and interaction of the genotypes with the environment. Pooled analysis of variance revealed significance of G x E interaction in the expression of most of the characters. Expression of all the traits except panicle harvest index, 100 grain weight and root shoot ratio were significantly differed in both the environments. For most of the characters, mean values were estimated to be higher under irrigated lowland condition, whereas, the ranges of the characters were found to be higher under aerobic condition. The magnitude of difference between correspondence phenotypic coefficient of variance (PCV) and genotypic coefficient of variance (GCV) were lower in aerobic condition, coupled with relatively higher estimates of heritability and genetic advance. Proline content, height growth rate, shoot weight, grain yield and plant height exhibited high heritability with high genetic advance as percent of mean hence, these characters showed promise in bringing genetic improvement under selection in aerobic condition. | Genetic variability for yield and yield contributing traits of rice under aerobic condition in Assam, India

• Nông nghiệp
• Aerobic rice
• Genetic variability
• G x E interaction
• Genetic advance
• Yield contributing traits
• Relative yield
• Potential aerobic rice cultivar
• Development of potential aerobic rice cultivar
• Participatory varietal selection employing aerobic response index
• Path analysis and aerobic rice
• Path analysis of yield
• Components in aerobic rice
• Yield components in aerobic rice
• Nitrogen uptake
• Nitrogen levels and scheduling
• Yield and economics of aerobic rice
• Aerobic rice (Oryza sativa L )
• Water soluble fertilizers
• Fertigation schedule on water
• Fertilizer use efficiency in aerobic rice
• Efficiency in aerobic rice
• Irrigation scheduling
• Intercropping on growth
• Yield of aerobic rice
• Intercropping on growth of aerobic rice
• Direct seeded rice
• Opportunities and strategies
• Aerobic rice (Oryza sativa L)
• Natural resources
• Nitrogen on growth
• Yield and nutrient uptake
• Rice under aerobic condition
• Aerobic condition
• Seed rate
• Seed rate and varieties
• Yield attributes
• Direct seeded aerobic rice
• Rice (Oryza sativa L )
• Drip fertigation
• Growth and yield parameters
• Aerobic rice onion cropping system
• Evaluation of drip fertigation
• Growth parameters of aerobic rice
• Growth parameters
• Influence of nitrogen levels
• Times of application on growth parameters
• Farmyard manure
• Bio digester liquid manure
• Soil health under aerobic rice
• Field bean cropping sequence
• Red sandy loam in texture
• Yield parameters and yield
• Weed control measures
• Influenced by different seeding methods
• Line sowing
• Nitrogen level
• Physical and economic optimum
• Nitrogen for aerobic rice
• Phenotypic correlation
• Genotypic correlation
• Path analysis
• Path analysis studies in aerobic rice
• Identification of transgressive segregants
• Transgressive segregants
• High zinc in grains
• Aerobic condition in F4 population
• F4 population of rice
• Urea nanofertilizer
• Aerobic paddy
• Slow release hydroxyapatite coated
• Urea nanofertilizer on aerobic paddy
• Aerobic rice as test crop
• Hybrid rice varieties
• Seed rates
• Grain yield
• Aerobic direct seeded situation
• Precision management practices
• Planting geometry
• Drip irrigation
• Aerobic condition under drip irrigation
• SPAD Chlorophyll Meter Readings values
• NPK fertigation levels on SCMR values
• Aerobic cultivation during kharif
• Root characteristics
• Establishment methods
• Nitrogen levels
• Root characteristics of aerobic rice
• Anaerobic conditions
• Water scarcity
• Smart technology of rice cultivation
• Rice cultivation
• Fresh water diverted from irrigation
• Yield variation
• Rice selections
• Aerobic planting
• Yield variation of rice selections
• Water scarce situations
• Bispyribac Na
• Weed dynamics
• Yield of rice
• Nitrogen on weed dynamics
• Integrated weed management
• Weed growth
• Weed control efficiency
• Rice (Oryza sativa L
• Organic amendments
• Rice wheat cropping
• Water stable aggregates
• Aerobically grown basmati rice