tailieunhanh - Studies on genetic divergence and canonical analysis in slender grain rice (Oryza sativa L.)

The present experiment was carried out using twenty-nine elite breeding lines from Station Yield Trial - Slender Grain materials along with three check varieties at the Rice Research Station, ., Bhubaneswar in kharif- 2016. A part of the research was to study the genetic divergence among the breeding lines used in the experiment. The D2 values obtained from the divergence study ranged from between OR2675-6-4 and OR2676-2-5 to 2518 between OR2675-2-1 and Samba mahsuri. Following Tocher’s method, all the thirty-two genotypes were classified into five different non-overlapping clusters. Cluster I contained twenty genotypes, Cluster II & III contained five genotypes each while cluster IV & V contained check varieties Ranidhan and Samba mahsuri respectively. The graph constructed by canonical analysis were broadly in agreement with the magnitude of divergence measured by D2 statistic, thus very well corroborating the grouping by Tocher’s method. Selection of parents should be done from the more divergent clusters for future hybridization program for getting better segregants. | Studies on genetic divergence and canonical analysis in slender grain rice (Oryza sativa L.)

• Nông nghiệp
• Slender grain
• Genetic divergence
• D2 statistic
• Tocher’s method
• Canonical analysis
• Transgressive segregants
• Pollen sterility
• Spikelet fertility
• Short grain aromatic rice hybrids
• Development of medium slender
• Identification of maintainers
• Oryza sativa L
• Aromatic rice
• Short and medium slender
• Head rice recovery
• Seed length
• Seed breadth
• Ratnagiri 8
• Grain yield
• Medium slender high yielding rice variety
• Six states of India
• Cross between IR64
• Rice (Oryza sativa L )
• Identification of transgressive segregants
• High zinc in grains
• Aerobic condition in F4 population
• F4 population of rice
• Reproductive phase
• Quantitative traits in chickpea
• Transgressive segregants for qualitative
• Crossing between highly diverse parents
• Seed cotton
• Fibre strength
• Transgressive segregation for fibre quality
• Seed cotton yield
• Gossypium barbadense L cotton
• Pearl millet
• Mainly grown for food
• Mainly grown for fodder
• Combining ability
• Indian bean [Lablab purpureus (L ) Sweet]
• Gene action in Indian bean
• Water use efficiency
• Heterosis for yield
• Yield attributes
• Water use efficiency related traits
• Obtaining transgressive segregants
• Capsicum annuum L
• Genetic mean
• Genetic diversity of chilli
• Isolate transgressive segregants
• Hierarchical clustering
• Nutritional traits
• Principal component analysis