Estimates of gene action for yield and its components in bread wheat Triticum aestivum L. - (IJAR)

dc.contributor.authorKandil, AA.
dc.contributor.authorSharief, AE.
dc.contributor.authorGomaa, Hasnaa SM.
dc.coverage.countryEgypten_US
dc.coverage.regionMiddle East & South Asiaen_US
dc.date.accessioned2018-01-12T13:43:29Z
dc.date.available2018-01-12T13:43:29Z
dc.date.issued2016en_US
dc.description.abstractIn order to study gene action for yield and its components using 8 × 8 diallel crosses excluding reciprocals during 2013/2014 and 2014/2015 growing seasons at Tag El-Ezz Research Station, Dakahlia Governorate, the genotypes were Sides 12, Gemmiza 11, Maser 1, Maser 2, Shandaweel 1, Giza 168, Sakha 93, and Sakha 94. Results revealed that both additive (D) and dominance (H1 and H2) genetic variance were significant for the all studied characters, indicating the importance of additive and dominance gene effects in controlling these characters. The dominance genetic variance was higher in the magnitude as compared to additive one, resulting in (H1/D)0.5 exceeding than more unity for all studied characters except spike density and number of tillers/plant. The “F” values which refer to the covariance of additive and dominance gene effects in the parents revealed positive and significant for flag leaf length and flag leaf area, extrusion length, number of tillers/plant number of spikes/plant, number of grains/spike and 1000- grain weight, indicating that dominant alleles were more frequent than the recessive ones in the parents for this character, while negative “F’ value for remaining characters indicated excess of recessive alleles among parents. The overall dominance effects of heterozygous loci h2, indicated directional dominance for heading date, flag leaf length, flag leaf area, spike length, extrusion length, spike density, grain yield/spike, number of tillers/plant number of spikes/plant, number of grains/ spike and grain yield/plant. Proportion of genes with positive and negative effects in the parent (H2/4H1) was deviated from 0.25 for all studied characters Heritability in narrow sense was moderate (0.369) for grain yield/plant.en_US
dc.identifier.citationjournalInternational Journal of Agronomy and Agricultural Research (IJAAR)en_US
dc.identifier.citationmonthJanuaryen_US
dc.identifier.citationnumber1en_US
dc.identifier.citationpages34-40en_US
dc.identifier.citationvolume8en_US
dc.identifier.urihttps://hdl.handle.net/10535/10335
dc.languageEnglishen_US
dc.publisher.workingpaperseriesAgriculture Research Center, Ministry of Agriculture and land reclamation, Egypten_US
dc.subjectBread Wheat Cultivarsen_US
dc.subjectNarrow Sense Heritabilityen_US
dc.subjectBroad sense heritabilityen_US
dc.subject.classificationAgricultureen_US
dc.subject.sectorAgricultureen_US
dc.titleEstimates of gene action for yield and its components in bread wheat Triticum aestivum L. - (IJAR)en_US
dc.typeJournal Articleen_US
dc.type.methodologyExperimentalen_US
dc.type.publishedpublisheden_US

Files

Original bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
IJAAR-V8No1-p34-40.pdf
Size:
800.67 KB
Format:
Adobe Portable Document Format
Description:
Main Articles

Collections