Frontiers of Agriculture in China >
Genetic model analysis on seedling and maturity traits in wheat under rainfed conditions
Received date: 23 Mar 2011
Accepted date: 26 Apr 2011
Published date: 05 Dec 2011
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An experiment was conducted to access the genetic variability among early vigour and quantitative traits under limited moisture in F2 generation of a 5 × 5 diallel cross of bread wheat. The results indicated that there was significant genotypic variation among the genotypes. Additive dominance model revealed full fitness of the data for RL, DSW, FRW, DRW, spike length, and 1000-grain weight but was partially fit for SL, FSW, R/S, tillers per seedling, plant height, tillers per plant, spikelets per spike, and grain yield per plant. The partially adequate models for these plant characters might be due to the presence of non-allelic interaction, linkage, and non-independent distribution of the genes in the parents. Additive genes coupled with moderate to high narrow sense heritability were involved in the heritage of all the traits, which indicated a higher scope of selection in early generations.
Key words： wheat; seedling trait; maturity trait; genetic model; rainfed condition
Shahid Iqbal AWAN , Muhammad Shahzad AHMED , Jehanzeb FAROOQ , Syed Dilnawaz AHMAD , Muhammad ILYAS , Asad Hussain SHAH , Muhammad Fareed KHAN , Sardar ALI , Lutful HASAN . Genetic model analysis on seedling and maturity traits in wheat under rainfed conditions[J]. Frontiers of Agriculture in China, 2011 , 5(4) : 486 -496 . DOI: 10.1007/s11703-011-1113-3
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