Abstract
Knowledge of inheritance of important plant traits is the basis of selection program. To check genetic variability and transmission pattern of essential plant characters, a research was conducted comprising 8 parents and 8 cross combinations at the research fields of The University of Agriculture, Peshawar, during 2014-15. The experiment was laid out using randomized complete block design with three repetitions. Data were recorded on yield and other important plant traits. Sufficient variations were detected for all the studied traits showing adequate scope of crop improvement. Traits like flag leaf area (0.82), plant height (0.81), fertile tillers plant -1 (0.83), biological yield (0.90), grains spike -1 (0.93) and grain yield plant -1 (0.90) manifested high heritability estimates with high genetic advance (14.15, 13.48, 4.57, 28.28, 21.64 and 15.7, respectively) suggested that they were under additive gene control. We recommend Tatara × Janbaz, AUP-5008 × Janbaz, Saleem-2000 × Siren, Saleem-2000 × Janbaz and AUP-5008 × Siren to be further assessed in cultivar development programs.
Highlights
Knowledge of inheritance of important plant traits is the basis of selection program
Genotype Saleem-2000 × Siren exhibited high broad sense heritability (0.82) together with high genetic advance (14.15) for flag leaf area indicate the presence of additive genes selection would be effective in early generations, whereas, low heritability (0.30) and low genetic advance was displayed by genotype Tatara × Janbaz (Table 4) suggesting the slow transmission of genes in this trait
Maximum heritability (0.71) accompanied with low genetic advance (0.96) was calculated for genotype Saleem2000 × Janbaz suggesting the predominance of non-additive gene action, whereas, minimum heritability (0.33) and genetic advance (0.30) was observed for cross of AUP-5008 × Janbaz (Table 4) implying role of environment in the inheritance of this trait
Summary
Present research was carried out in the research fields of The University of Agriculture, Peshawar, Pakistan during 2014-15. The plant material consisted eight parents and their eight F3 progenies (Table 1). Seeds of parental lines along with their selected F3 crosses were space planted in randomized complete block design with three replicates. Each plot consists of three rows per entry of 3 m row length, row to row and plant to plant spacing was kept at 30 cm and 15 cm, respectively. Standard cultural practices were carried throughout the growing season
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