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Journal article
The combining ability for grain yield and some related characteristics in rice (Oryza sativa L.) under normal and water stress conditions
Frontiers in Plant Science, Vol.13, 866742
2022
Abstract
Drought is considered a major threat to rice production. This study aimed to determine the effects of drought stress on the estimates of heterosis and the combining ability of rice genotypes for the number of days to 50% heading, plant height, number of panicles per plant, panicle length, number of filled grains per panicle, and grain yield per plant. Field experiments were conducted at the Rice Research and Training Center, Kafr El Sheikh, Egypt, during the rice-growing season in 2018 and 2019. Eight rice genotypes (Giza178, Giza179, Sakha106, Sakha107, Sakha108, WAB1573, NERICA4, and IET1444) were crossed in a half-diallel cross in the rice-growing season in 2018, which yielded a wide range of variability in numerous agronomic traits and drought tolerance measurements. In 2019, these parents and their 28 F1 crosses were produced by employing a three-replication randomized complete block design under normal and water stress conditions. The results showed remarkable differences across the studied genotypes under normal and water stress conditions. Under both conditions, Sakha107 was the best general combiner for earliness and short stature. Giza179 and Sakha108 were the best general combiners for grain yield per plant and one or more of its characteristics. Furthermore, in both normal and water stress conditions, Giza179 exhibited the highest general combining ability effects for all attributes that were evaluated. Under normal and water stress conditions, the Giza179 × Sakha107 cross demonstrated substantial and desirable specific combining ability effects on all the examined traits, which suggested that it could be considered for use in rice hybrid breeding programs. Therefore, we recommend that these vital indirect selection criteria to be considered for improving rice grain yield under drought conditions.
Details
- Title
- The combining ability for grain yield and some related characteristics in rice (Oryza sativa L.) under normal and water stress conditions
- Authors/Creators
- M.S. Abd El-Aty (Author/Creator)Y.S. Katta (Author/Creator) - Kafrelsheikh UniversityA.E.M.B. El-Abd (Author/Creator)S.M. Mahmoud (Author/Creator) - Field Crops Research InstituteO.M. Ibrahim (Author/Creator) - City of Scientific Research and Technological ApplicationsM.A. Eweda (Author/Creator) - City of Scientific Research and Technological ApplicationsM.T. El-Saadony (Author/Creator) - Zagazig UniversityS.F. AbuQamar (Author/Creator) - United Arab Emirates UniversityK.A. El-Tarabily (Author/Creator) - United Arab Emirates UniversityA.M. El-Tahan (Author/Creator) - City of Scientific Research and Technological Applications
- Publication Details
- Frontiers in Plant Science, Vol.13, 866742
- Publisher
- Frontiers Media S.A.
- Identifiers
- 991005544984407891
- Copyright
- © 2022 Abd El-Aty et al.
- Murdoch Affiliation
- Harry Butler Institute; Centre for Terrestrial Ecosystem Science and Sustainability
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.4 Crop Science
- 3.4.424 Crop Yield Optimization
- Web Of Science research areas
- Plant Sciences
- ESI research areas
- Plant & Animal Science