Genetic Components Derived Parameters and Heterosis in Okra under Saudi Arabia Conditions.

Autor: Abdelkader MFM; Department of Plant Production, College of Food and Agriculture, King Saud University, Riyadh 12372, Saudi Arabia., Mahmoud MH; Department of Biochemistry, College of Science, King Saud University, Riyadh 12372, Saudi Arabia., Diyasty MZ; Genetic Department, Faculty of Agriculture, Mansoura University, El-Mansoura 35516, Egypt., Sukar NA; Agricultural Botany (Genetics) Department, Faculty of Agriculture (Girls), Al-Azhar University, Cairo, Egypt., Farag MI; Department of Drug Discovery Sciences, Kobe University Graduate School of Science, Technology and Innovation, Kobe, Japan., Mohamed NNI; Department of Agricultural Biochemistry, Faculty of Agriculture, Ain Shams University, Cairo, Egypt., Salama YAMA; Plant Adaptation Unit-Genetic Resource Department, Desert Research Centre, Cairo, Egypt., Abdein MA; Seeds Development Department, El-Nada Misr Scientific Research and Development Projects, Turrell, Mansoura 35511, Egypt.
Jazyk: angličtina
Zdroj: Genetics research [Genet Res (Camb)] 2024 Jan 23; Vol. 2024, pp. 6432560. Date of Electronic Publication: 2024 Jan 23 (Print Publication: 2024).
DOI: 10.1155/2024/6432560
Abstrakt: Four parental genotypes of okra were crossed in complete diallel design to study the direction and extent of relative heterosis and heterobeltiosis for yield and its associated traits for utilization of existing genetic diversity to develop heterotic F 1 hybrids in okra. The additive genetic component ( D ) was significant in all studied traits except average pod weight. Nonadditive ( H 1 and H 2 ) components were found to be significant in all studied traits. However, the values of the dominant effect ( H 1 ) were smaller than the D components for no. of nodes/plant, no. of pods/plant, weight of medium pods, weight of large pods, and total fresh pod yield. The maximum significant MP heterosis in the desirable direction (149.9%) was recorded for the weight of large pods/plot. The maximum significant heterobeltiosis in the desirable direction (120.1%) was recorded for the weight of small pods/plot followed by total fresh pod yield (107.4%), the weight of large pods/plot (104.9%), weight of medium pods/plot (92.1%), average pod weight (51.8%), number of pods/plant (38.4%), and plant height (34.3%). It could be concluded that plant height, average pod weight, and the number of branches could be considered for the development of elite hybrids (heterosis breeding) or inbred lines (pure line selection) in succeeding generations. Therefore, these parameters can be considered for selecting genotypes to improve the pod yield of okra. The superior crosses identified through heterosis analysis were Egyptian Balady × Line 4.1.18 (30.8 ton/ha), Line 4.1.18 × Egyptian Balady (29.8 ton/ha), Dwarf Green Long Pod × Line 4.1.18 (28.3 ton/ha), and Egyptian Balady × Dwarf Green Long Pod (27.6 ton/ha) as these crosses had high performance as well as significant and higher estimates of heterobeltiosis for fruit yield per plant and yield attributing other characters.
Competing Interests: The authors declare that they have no conflicts of interest.
(Copyright © 2024 Mohamed F. M. Abdelkader et al.)
Databáze: MEDLINE
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