scholarly journals EFFECT OF ENVIRONMENTAL TEMPERATURES ON PRODUCTION AND BREAD CHARACTERISTICS OF FOUR BREAD WHEAT CULTIVARS II. BREAD QUALITY ATTRIBUTES AS A FUNCTION OF ENVIRONMENTAL TEMPERATURES PRODUCTIVITY

2013 ◽  
Vol 4 (10) ◽  
pp. 1449-1459
Author(s):  
M. Abo El-Naga ◽  
Hoda El-Gharbawy
Keyword(s):  
Bread Wheat ◽  
Quality Attributes ◽  
Bread Quality ◽  
Wheat Cultivars ◽  
Environmental Temperatures

scholarly journals Evaluation of yield and agronomic traits of new winter bread wheat cultivars

Genetika ◽  
2020 ◽  
Vol 52 (1) ◽  
pp. 81-96
Author(s):  
Bekir Aktas
Keyword(s):  
Grain Yield ◽  
Bread Wheat ◽  
High Performance ◽  
Agronomic Traits ◽  
Principal Component ◽  
Genotype By Environment Interaction ◽  
Quality Attributes ◽  
Environment Interaction ◽  
Wheat Cultivars ◽  
Growing Seasons

Yield and quality attributes of 13 bread wheat cultivars registered for Thrace region in 2018 and 5 standard bread wheat cultivars were determined and compared in this study. Tested cultivars are originated from Turkey, Bulgaria, Romania, Croatia, Austria and Ukraine. Experiments were conducted in 2015-2016 and 2016-2017 growing seasons. Since the locations were not equally distributed to growing seasons, statistical analyses for yield and other parameters were performed through assuming each location as an environment. Therefore, assessments were made over 7 environments. Environment (E) explained 54.9% of the total variation (E+G+GEI), genotype (G) and genotype ? environment interaction (GEI) generated 25.6% and 19.5%, respectively. GGE (Genotype + Genotype by environment interaction) biplot analysis was able to explain 78.51% of variation in grain yield. Trial environments gathered under 3 mega-environments. Of the cultivars registered in 2018, Adali, Bc Anica, Topkapi, FDL Miranda, Otilia, ZT Ziyade, Viktoria and Dragana had values larger than the average and thus they had the largest PC1 (Principal component 1) scores. Tested cultivars were also assessed based on vector lengths to average environment coordinate (AEC). Adali cultivar with a high PC1 score and the closest position to AEC apsis was found to be quite prominent for grain yield. In environment-focused assessments, E3, E4 and E5 had the closest position to ideal environment circle. With regard to physical quality attributes, Pehlivan, Bojana and Adali cultivars had high performance values. The cultivar Bojana, Topkapi and Iveta had protein contents above 15%. For Zeleny sedimentation values, Krasunia odes?ka had the best performance.

Nitrogen Metabolism and Yellowberry of Two Bread Wheat Cultivars 1

Crop Science ◽  
1983 ◽  
Vol 23 (1) ◽  
pp. 20-22 ◽  
Author(s):  
James F. Henson ◽  
J. Giles Waines
Keyword(s):  
Nitrogen Metabolism ◽  
Bread Wheat ◽  
Wheat Cultivars

Responses of Some Turkish Wheat Cultivars to Vernalization and Photoperiod

1988 ◽  
Vol 24 (2) ◽  
pp. 237-245
Author(s):  
Serpil Terzioğlu
Keyword(s):  
Bread Wheat ◽  
Normal Development ◽  
Photoperiodic Response ◽  
Reliable Information ◽  
Floral Initiation ◽  
Wheat Cultivars ◽  
Primary Shoot ◽  
Time Of Year ◽  
Short Days

SUMMARYThe vernalization and photoperiodic response of six locally adapted bread wheat cultivars grown under natural daylength conditions during the summer or winter months was examined in glasshouse experiments. The wheat was vernalized by chilling imbibed grains at 2 ± 1°C for 0, 15 or 45 days. Vernalization for 45 days followed by long summer days led to floral initiation in all cultivars within 28 days but vernalization for 0 or 15 days only led to floral initiation in one cultivar. Vernalization followed by long days reduced the time from transplanting to anthesis, resulting in early ear emergence. Vernalization followed by short days accelerated the development of all the cultivars, but normal development could also occur without vernalization at this time of year. Apical differentiation of the primary shoot and its length and development gave the most reliable information on the period of vernalization required.

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