TAILIEUCHUNG - Analysis of genetic variability to improve yield and resistance to bacterial leaf blight in rice (Oryza sativa L) germplasm

One hundred indigenous collection of rice germplasm were evaluated for ten quantitative traits to assess the genetic variability, heritability, associations and estimation of yield related traits including area under disease progress curve for bacterial leaf blight. was present for all the traits,. In all germplasm, the analysis of variance revealed a wide range of variability and significant differences for the characters under study, indicating the presence of high genetic variability among the genotypes and considerable scope for selection. The estimates of genotypic coefficient of variance were lower than the respective phenotypic coefficient of variance, indicating the influence of environmental factors on the expression of the traits studied. The high heritability was observed for grain yield per plant, thousand grain weight, total spikelets per panicle, number of effective tillers per plant, plant height, grain weight per panicle, days to maturity and days to 50 per cent flowering. The phenotypic correlation coefficients were positive and highly significant between grain yield per plant with days to 50% flowering, days to maturity, total spikelets per panicle, grain weight per panicle and thousand grain weight. The correlation between area under disease progress curve and number of effective tillers per plant and thousand grain weight was positive. | Analysis of genetic variability to improve yield and resistance to bacterial leaf blight in rice (Oryza sativa L) germplasm

• Sinh học
• Genetic advance
• Grain yield
• Improve yield
• Resistance to bacterial leaf blight
• Bacterial leaf blight in rice
• Oryza sativa L
• Genetic variability
• Heritability and genetic advance
• Fenugreek (Trigonella foenum graecum L )
• Genetic advance in fenugreek
• Germplasm genetic variability
• Genetic advance in grain amaranth
• Grain amaranth (Amaranthus spp )
• Pigeon pea
• Chitrakoot climate condition
• Genetic advance in pigeon pea
• Safflower (Carthamus tinctorius L )
• Genetic advance studies
• Genetic advance studies in safflower
• Characters indicating greater diversity
• Bread wheat
• Genetic advance in bread wheat
• Heritability advance
• Genetic advance for yield
• Attributes in coriander
• Coriander (Coriandrum sativum L )
• Hybrid rice (Oryza sativa L
• Genetic advance in parental lines
• Hybrid rice
• Study of genetic variability
• Sesame (Sesamum indicum L
• Genetic advance and wheat
• Genetic advance for grain yield
• Contributing traits in wheat
• Chrysanthemum (Dendranthema grandiflora Tzvelve)
• Assessment of genetic variability
• Genetic advance in chrysanthemum
• Genetic advance in cowpea
• Improvement programme
• Studies on genetic variability
• Genetic advance in pumpkin
• Studied traits between genotypes
• Genetic advance in Carrot
• Different characters of Carrot
• Genetic gain
• Rice (Oryza sativa L
• Yield and quality components
• PCV and variability
• Drought tolerant rice
• ) landraces
• Turmeric (Curcuma longa L )
• Genetic advance in turmeric
• Randomized block design
• Broad sense heritability
• Sugarcane genotypes (Saccharum officinarum)
• Genetic advance for various yield
• Cluster bean
• Yield attributing characters
• Indica Tropical Japonica derived lines
• Quality traits
• Genetic advance as mean
• Genetic advance as mean for yield
• Yield contributing traits
• Urdbean (Vigna mungo L Hepper)
• Additive gene
• Cucumber (Cucumis sativus L )
• Protected structure
• Genetic advance in cucumber
• Momordica charantia L
• Genetic advance in bitter gourd
• Bitter gourd (Momordica charantia L )
• Garden pea
• Genetic advance in garden pea
• Study on genetic variability
• Various characters in garden pea genotypes