Daher, E., Elnaem, S., El-leithy, S., Hassan, H. (2024). Allelic and Non-Allelic Interaction of some Quantitative Traits in Rice under Water Deficit Conditions. Journal of Plant Production, 15(12), 825-834. doi: 10.21608/jpp.2024.325597.1392
E. M. Daher; S. A. Elnaem; Sara A. El-leithy; H. M. Hassan. "Allelic and Non-Allelic Interaction of some Quantitative Traits in Rice under Water Deficit Conditions". Journal of Plant Production, 15, 12, 2024, 825-834. doi: 10.21608/jpp.2024.325597.1392
Daher, E., Elnaem, S., El-leithy, S., Hassan, H. (2024). 'Allelic and Non-Allelic Interaction of some Quantitative Traits in Rice under Water Deficit Conditions', Journal of Plant Production, 15(12), pp. 825-834. doi: 10.21608/jpp.2024.325597.1392
Daher, E., Elnaem, S., El-leithy, S., Hassan, H. Allelic and Non-Allelic Interaction of some Quantitative Traits in Rice under Water Deficit Conditions. Journal of Plant Production, 2024; 15(12): 825-834. doi: 10.21608/jpp.2024.325597.1392
Allelic and Non-Allelic Interaction of some Quantitative Traits in Rice under Water Deficit Conditions
Rice Research Section, Field Crops Research Institute, ARC, Giza, Egypt.
Abstract
This study was carried out at the Experimental Farm of Sakha Rice Research Station, Kafr El-Sheikh, Egypt, during the 2021, 2022, and 2023 growing seasons. The objective was to evaluate heterosis, inbreeding depression, allelic and non-allelic interactions, and genetic advance for root, physiological, and yield-related traits in rice using a six-population approach: P1, P2, F1, F2, BC1, and BC2. Two rice crosses, Sakha106 × Nerica7 (CI) and Giza177 × GZ 10848-1-2-2-1 (Giza183) (CII), were investigated. Field trials were conducted in a randomized complete block design with three replications. The results revealed highly significant and positive heterosis, as a deviation from both mid-parent and better-parent values, for most traits under both irrigation conditions. Most traits displayed incomplete dominance to over-dominance. Both additive and dominance genetic effects played important roles in trait control, with additive × additive, additive × dominance, and dominance × dominance interactions also contributing to the genetic regulation of most traits, with a few exceptions. High values of Broad-sense heritability and predicted genetic advance were estimated for most traits in the studied crosses. However, narrow-sense heritability was generally moderate to low in most traits of both crosses. Based on these findings, Giza 177 × GZ 10848-1-2-2-1 (Giza183) is recommended for cultivation under water deficit conditions for most of the studied traits.
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