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Combining Ability and Gene Action Estimates of Eight Parent Diallel Crosses of Chickpea for Ascochyta Blight
Joint Authors
Labdi, Mohamed
Ghomari, Samia
Hamdi, Samia
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-01-26
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Ascochyta blight resistance was studied in half-diallel cross involving eight genotypes of chickpea at seedling and adult stages.
The disease was rated in the greenhouse with a modified scale from 0 to 100%.
The diallel analysis was performed on 28 F1 and their F2.
The results were analyzed with the Hayman and Griffing methods.
The general combining ability is most important for two generations, is highly significant for the two stages, and is more important than specific combining ability.
This result reflects a strong preponderance of additive effects and epistasis additive × additive with respect to dominance effects in this material for the two generations, which shows the predominance of additive versus dominance.
Estimates of heritability are very high.
The additive effects have the highest value indicating the importance of this component for resistance to Ascochyta.
For seedling stage, the negative sign of F for both generations indicates that there are much more recessive alleles that affect resistance to the disease.
In adult stage, F is positive in both generations and shows more dominant alleles that control plant reaction to pathogen.
H2 is positive in both generations which show that dominant genes are acting mostly towards the susceptibility.
American Psychological Association (APA)
Labdi, Mohamed& Ghomari, Samia& Hamdi, Samia. 2015. Combining Ability and Gene Action Estimates of Eight Parent Diallel Crosses of Chickpea for Ascochyta Blight. Advances in Agriculture،Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1052161
Modern Language Association (MLA)
Labdi, Mohamed…[et al.]. Combining Ability and Gene Action Estimates of Eight Parent Diallel Crosses of Chickpea for Ascochyta Blight. Advances in Agriculture No. 2015 (2015), pp.1-7.
https://search.emarefa.net/detail/BIM-1052161
American Medical Association (AMA)
Labdi, Mohamed& Ghomari, Samia& Hamdi, Samia. Combining Ability and Gene Action Estimates of Eight Parent Diallel Crosses of Chickpea for Ascochyta Blight. Advances in Agriculture. 2015. Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1052161
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1052161