Effects of Drought on Morphological Traits in Some Cowpea Genotypes by Evaluating Their Combining Abilities
Joint Authors
Olajide, Amos Afolarin
Ilori, Christopher Olumuyiwa
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-09-20
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
An evaluation was conducted to understand the genetic effects of combining ability for four different morphological traits, on 42 hybrids in randomized complete block design with three replications in water-stressed and well-watered environments.
The significance of the additive variance (D) and dominance variance (H1) indicated the presence of both additive and nonadditive gene actions in both environments.
Among the parents, there was asymmetrical distribution of positive and negative dominant genes and the preponderance of overdominance gene action for all the traits in both environments.
This study also indicated a minimum of ten genes for plant height in water-stressed environment and minimum of three and eight genes for terminal leaflet area and number of leaves per plant in both environments, respectively.
Estimates of narrow-sense heritability ranged from 13.0% for number of branches per plant in water-stressed to 95.0% in well-watered environment for terminal leaflet area.
The study revealed that Danilla, IT93K-432-1, and IT97K-499-35 were the best general combiners for all traits, Danilla × IT97K-499-35, and Danilla × IT93K-432-1 were found to be the best specific combiners for all traits in water-stressed environment.
Genetic interactions, additive × additive and additive × dominance, were more pronounced in the inheritance of the traits.
This indicated that the selection for these traits should be delayed till advanced generations.
American Psychological Association (APA)
Olajide, Amos Afolarin& Ilori, Christopher Olumuyiwa. 2017. Effects of Drought on Morphological Traits in Some Cowpea Genotypes by Evaluating Their Combining Abilities. Advances in Agriculture،Vol. 2017, no. 2017, pp.1-10.
https://search.emarefa.net/detail/BIM-1120933
Modern Language Association (MLA)
Olajide, Amos Afolarin& Ilori, Christopher Olumuyiwa. Effects of Drought on Morphological Traits in Some Cowpea Genotypes by Evaluating Their Combining Abilities. Advances in Agriculture No. 2017 (2017), pp.1-10.
https://search.emarefa.net/detail/BIM-1120933
American Medical Association (AMA)
Olajide, Amos Afolarin& Ilori, Christopher Olumuyiwa. Effects of Drought on Morphological Traits in Some Cowpea Genotypes by Evaluating Their Combining Abilities. Advances in Agriculture. 2017. Vol. 2017, no. 2017, pp.1-10.
https://search.emarefa.net/detail/BIM-1120933
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1120933