الفهرس 
IntroductionOnly 14 pages are availabe for public view
 |  | from | 96 |  |  |
| | | from | 96 | | |
Abstract
The experimental field work of this investigation was carried out at Plant Production Department, Faculty of Agriculture (Saba-Basha) Alexandria University during 2018/2019 and 2019/2020 seasons. Based on the results of previous experiments were conducted by Wheat Research Department of the ARC, seven bread wheat (Triticum aestivum, L.) cultivars, showing yield and its components of some half diallel bread crosses were used as parents of this study. These 7 wheat parents included 7 Egyptian cultivars (Sakha 94 (P1), Misr 1(P2), Giza 168(P3), Misr 2(P4), Giza171(P5), Sids 14 (P6) and Shandweil 1(P7)).
The seven genotypes were chosen as parents for this study wich were grown in 2018/2019 season at the field Naguib Mahfouz Village, Housh Eisa, El Behiera Governomate , Egypt. All possible diallel crosses (excluding reciprocals) were made among the seven parents to get 21 direct F1 straight crosses. Since the produced hybrid grains were not enough to start the evaluation experiment, the seven parents were repeatedly sown at 20/11//2019 in the same field at same region as mention before of the same 21 F1s` were produced in sufficient quantities. Grains of three seven parents were also increased in the same season (2019/2020).
Evaluation of parents and F1, s.
In the second season, 2019/2020, the experiment was designed in a randomized complete block design (RCBD) with three replications. Each replicate consisted of 28 rows, 3 m. long and 30 cm width apart with, 15 cm. between plants. Twenty four grains were sown in each row. The seven parental genotypes and their 21 F1’s were sown in the same place. Moreover, all the other treatments were kept constant for the whole experiment .All agricultural practice were conducted according to Ministry of Agriculture and land Reclamation recommendations.