Genetic parameters estimation for yield and its components in two bread wheat crosses by using six populations model [electronic resource]
Language: English Summary language: Arabic Description: 549 - 553 pOther title:- تقدير المعالم الوراثية للمحصول ومكوناته في هجينين من قمح الخبز باستخدام نموذج العشائر الستة عشائر [Added title page title]
- Mansoura University journal of plant production, 2022 v. 13 (8) [electronic resource]
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Main | ART MUJPP V13 No8 2 (Browse shelf(Opens below)) | Available |
Includes bibliographic reference
This research aims to determine the types of gene action that control yield and its components in two
crosses of bread wheat so that wheat breeders can select the most appropriate breeding approaches. The sixgeneration model is the best model for estimating the additivity of genes and deviations from additivity, including epistasis. Therefore, this research was done at Sids Agricultural Research Station, ICARC-WIP Project, throughout the three growing seasons, 2018/2019, 2019/2020, and 2020/2021, to determine heterosis, gene action, and mean performances, as well as inbreeding depression for grain yield and yield components.
In addition, six populations (for the two crosses were produced from Gemmeiza 12 × Sids 14 and Misr 3 ×
Misr 1. Six parameters were estimated. In both crosses, the mean effects for all investigated haracteristics are extremely substantial, demonstrating that these traits are quantitatively inherited. In the 1st cross, inbreeding depression was found to be signifcant and positive for all characteristics, except for the 100-kernel weight. In the two crosses, potency ratio values were more than unity for number of grain spike-1. The possibility of developing hybrid cultivars for plant breeders was examined in self-pollinated crops, such as bread wheat.
Therefore, the exploitation of heterosis in various crops in the world has substantially increased human food or livestock feed production.
Keywords: Inbreeding depression, Gene action, Heterosis, Triticum aestivum L.
Summary in Arabic
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