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dc.contributorCherkaoui, Souaden_US
dc.contributorKehel, Zakariaen_US
dc.contributorSanchez-Garcia, Miguelen_US
dc.contributorSarazin, Jean-Benoiten_US
dc.contributorBaenziger, P. Stephenen_US
dc.contributorTadesse, Wuletawen_US
dc.creatorEl-Hanafi, Samiraen_US
dc.identifier.citationSamira El-Hanafi, Souad Cherkaoui, Zakaria Kehel, Miguel Sanchez-Garcia, Jean-Benoit Sarazin, P. Stephen Baenziger, Wuletaw Tadesse. (14/2/2022). Hybrid Seed Set in Relation with Male Floral Traits, Estimation of Heterosis and Combining Abilities for Yield and Its Components in Wheat (Triticum aestivum L. ). Plants, 11 (4).en_US
dc.description.abstractBreeding hybrids with maximum heterosis requires efficient cross-pollination and an improved male sterility system. Renewed efforts have been made to dissect the phenotypic variation and genetic basis of hybrid floral traits, although the potential of tailoring the appropriate flower design on seed setting is less known. To this end, elite wheat genotypes were crossed using a chemical hybridizing agent at different doses. A total of 23 hybrids were developed from a partial diallel design; and planted in an alpha lattice design with their parents at two locations in Morocco, for two years, to evaluate for yield components, heterosis and combining abilities. The 13.5 L ha􀀀1 dose induced a maximum level of sterility (95%) and seed set showed large phenotypic variation and high heritability. In parallel, seed set showed tight correlation with pollen mass (0.97), visual anther extrusion (0.94) and pollen shedding (0.91) (p < 0.001), allowing direct selection of the associated traits. Using the combined data, mid-parent heterosis ranges were 􀀀7.64–14.55% for biomass (BM), 􀀀8.34–12.51% for thousand kernel weight (TKW) and 􀀀5.29–26.65% for grain yield (YLD); while best-parent heterosis showed ranges of 􀀀11.18–7.20%, 􀀀11.35–11.26% and 􀀀8.27–24.04% for BM, TKW and YLD, respectively. The magnitude of general combining ability (GCA) variance was greater than the specific combining ability (SCA) variance suggesting a greater additive gene action for BM, TKW and YLD. The favorable GCA estimates showed a simple method to predict additive effects contributing to high heterosis and thus could be an effective approach for the selection of promising parents in early generations.en_US
dc.subjectfloral traitsen_US
dc.subjecthybrid wheaten_US
dc.titleHybrid Seed Set in Relation with Male Floral Traits, Estimation of Heterosis and Combining Abilities for Yield and Its Components in Wheat (Triticum aestivum L.)en_US
dc.typeJournal Articleen_US
cg.creator.idKehel, Zakaria: 0000-0002-1625-043Xen_US
cg.creator.idSanchez-Garcia, Miguel: 0000-0002-9257-4583en_US
cg.creator.idTadesse, Wuletaw: 0000-0003-1175-3502en_US
cg.subject.agrovocseed seten_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerMohammed V University, Faculty of Science - UM5 - FSRen_US
cg.contributor.centerAsur Plant Breeding (Saten Union Research Sas Breeding) - Asuren_US
cg.contributor.centerUniversity of Nebraska-Lincoln - UNLen_US
cg.contributor.crpCGIAR Research Program on Wheat - WHEATen_US
cg.contributor.funderAgricultural Research Center Egypt - ARC Egypten_US
cg.contributor.projectEgypt Bilateral Program 2019-2020-2021-2022 Seasonen_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.coverage.regionNorthern Africaen_US
dc.identifier.statusOpen accessen_US

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