Genotypic and Phenotypic Behavior for Quantitative Traits of some Wheat Varieties (Triticum aestivum L.) and their Half Diallel Crosses | ||
| Rafidain Journal of Science | ||
| Article 21, Volume 27, Issue 4, December 2018, Pages 76-87 PDF (731.4 K) | ||
| DOI: 10.33899/rjs.2018.159347 | ||
| Authors | ||
| Ahmed H. Anees* ; Abdul-Khader H. AL- Jubouri | ||
| Department of Plant Protection, College of Agriculture and Forestry, University of Tikrit | ||
| Abstract | ||
| A field experiment was carried out at the research station of the field crops department college of agricultureuniversity of Tikrit during (2011-2012 and 2013 winter seasons, included crossing according half diallel cross in the first season and evaluating parents and their crosses in the second season to study the genotypic and phenotypic behavior for the traits: days to anthesis, plant height (cm), no. spikes. plant-1, no. grains. spike-1, 1000 grains weight (g) and individual grain weight. Results showed highly significant differences for whole studied traits, many parents have high significant means and agood combiner in many traits especially ACS-W-J19-9148 parents in plant height and grains. spike-1 , ACS-W-J14-9143 parent in days to anthesis and 1000 grain weight and ACS-W-J15-9144 in no.grains.spike-1 and individual grain weight. Many crosses have better performance and affected positively to wards desired direction of significant hybrid vigor (ACS-WJ19- 9148 X sham 6) in no. grains. spike-1 and individual grain yield, (ACS-W-J15-9144) in 1000 grain weight and individual grain weight. Whole traits were controlled by dominance type of gene action and that adequate with the ratio of the degree of dominance which were more than one. Consequently heritability in narrow sense and expected genetic advance were low. The last two crosses can be useful through the application of pedigree selection on the late segregation generations to improve bread wheat cultivars | ||
| Keywords | ||
| Wheat; half diallel crossing; Hybrid Vigor; Genetic Parameters | ||
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