THE GENETIC SYSTEM CONTROLLING AGRONOMIC TRAITS IN CANOLA | ||||
| Egyptian Journal of Plant Breeding | ||||
| Article 6, Volume 24, Issue 2, June 2020, Page 355-387 PDF (1.77 MB) | ||||
| Document Type: Original research | ||||
| DOI: 10.12816/ejpb.2020.171007 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| M. A. Abdelsatar* ; Kh. A. Mourad; Suzan A.K. Ibrahim | ||||
| Oil Crops Research Dept., Field Crops Res. Inst., ARC, Giza, Egypt | ||||
| Abstract | ||||
| To determine the types of combining abilities, heterosis and genetic behavior of agronomic traits, six divergent canola genotypes were crossed using a half diallel mating design (excluding reciprocal crosses). The parents and their crosses were evaluated using a randomized complete block design with three replicates at Kafr-El-Hamam/Sharkia and Etay-El-Baroud/Behaira Agricultural Research Stations, Agricultural Research Center, Egypt. The preponderance of dominance gene action was observed for most studied traits as verified by the average degree of dominance and narrow-sense heritability. The GGE biplot revealed that N.A.36 and N.A.39 at Kafr-El-Hamam and N.A.39 and N.A.14 at Etay-El-Baroud were the best general combiners for seed weight plant-1 and N.A.36, N.A.38 and N.A.39 at Kafr-El-Hamam and N.A.36, N.A.39 and N.A.14 at Etay-El-Baroud for seed oil content, which associated with proportion of desirable genes either dominant or recessive. Superior crosses than better parents for seed weight plant-1 were observed in four crosses [N.A.36 and N.A. 37] x [N.A.38 and N.A.14] at Kafr-El-Hamam and two crosses [N.A.37] x [N.A.38 and N.A.14] at Etay-ElBaroud as well as for seed oil content in four crosses [N.A.39 and N.A.14] x [N.A.37 and N.A.38] at Kafr-El-Hamam and two crosses in [N.A.18] x [N.A.37 and N.A.38] at EtayEl-Baroud. | ||||
| Keywords | ||||
| Canola (Brassica napus L.); Gene action; GGE biplot; Graphical analysis; Half diallel analysis | ||||
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