Jasim Mohammed Aziz Al Jobouri* (1) and Pashtiwan Hama Ali Abdalkarim(2)
(1).Collage of Agriculture -Tikrit University- Ministry of Higher Education and Scientific Research Iraq.
(2).Seed Testing and Certification Directorate, Iraq.
(*Corrsponding author: Dr. Prof. Jasim M. Aziz al-Jobouri, Email: jasim2017@ tu.edu.iq).
Received: 28/10/2020 Accepted: 18/01/2021
Abstract
The research was carried out in two agricultural seasons 2017-2018 and 2018-2019 in three different locations (Kirkuk, Salah Al-Din, and Cham Chamal in Sulaymaniyah). The research included twelve varieties of Bread wheat in order to evaluate them in these sites. The experiment was carried out with a randomized complete block design RCBD with three replications. The results of the analysis of variance showed that varieties x the seasons interaction was significant in all of the studied traits. Wafia variety gave the largest number of spikes per square foot (395.1 spikes). We also distinguish the lesser variety Adna99 in this row (355.8 spikes and weighting thousand grains (40.3 g) and the number of grains per spike (50.3 grains), which contributed to its superiority in the grain yield (5.024 tons’ ha-1). Al-Fayyad was classified with a grain yield (4.740 tons ha-1), and it was also superior to the area of the flag leaf (49.7cm2), the number of spike grains and the weight of a thousand grains (58.8 and 41.0 g), respectively, and the Adna99 and API99 varieties exceeded in the percentage of protein (14.54% 14.5%) respectively. As for the percentage of gluten, it distinguishes the ARAS variety by 34.55%. The insignificance of triple interaction gives an indication of the stability of the varieties for the sites as they behave similarly to them.
Keyword: Genotype × Environment Interaction, Bread Wheat, Iraq
Full paper in Arabic: PDF