Genetic Variability, Heritability and Genetic Advance for Yield and itsRelated Traits in Rainfed Lowland Rice ( Oryza sativa L.) Genotypes atFogera and Pawe, Ethiopia
By Tefera Abebe, S. Alamerew, L. Tulu. 2017
104 citations recorded by the source corpus.
The present study consists of 36 rice genotypes that were evaluated at two locations, namely Fogera and Pawe to study genetic variability, heritability and genetic advance for grain yield and 13 yield associated traits. The experiment was conducted using 6 × 6 simple lattice design across two locations with two replications during the 2015/2016 main cropping season. The combined analysis of variance revealed statistically significant differences (p<0.05) indicating the existence of genetic variability among the 36 genotypes for all the traits studied. Genotype × location interactions were significant for days to maturity, plant height, panicle length, culm length, flag leaf length, number of filled grain per panicle, number of total spikelet per panicle, days to heading, biomass yield, grain yield and harvest index. Significant differences were observed for grain yield that ranged from 6759.00 to 2886.00 kg ha-1 with overall mean value of 5370.0 kg ha-1. Higher PCV and GCV values were exhibited by plant height, culm length, number of unfilled grain per panicle, biomass yield and grain yield, which suggests the possibility of improving this trait through selection. The highest heritability was recorded for culm length followed by plant height, biomass yield and panicle length. High to medium heritability coupled with high GCV and high genetic advance as percentage of means were exhibited for plant height, biomass yield, grain yield and number of unfilled grain per panicle. High genetic advances as percent of means were recorded by plant height, culm length, biomass yield, grain yield and number of unfilled grain per panicle.
Subfields: Plant Science
View Paper: https://www.semanticscholar.org/paper/9bd34f46e55ae8963a2fe38c7e05b0531361ef9f
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In Plant Science
Citations in the corpus
- Genetic variability, heritability, genetic advance and correlation among yield and yield components of rice (Oryza sativa L.) (2018, background): “Low genetic advance as percent of mean was also estimated by Abebe et al. (2018) for days to maturity, effective tillers, grains/panicle, number of panicles and thousand grain weight which is quite similar to the present findings. In addition similar reporting was made by Mallimar et al. (2015) for ”