scholarly journals Polymorphism of Gli-D1 alleles of Kragujevac’s winter wheat cultivars (Triticum aestivum L.)

Genetika ◽  
2007 ◽  
Vol 39 (2) ◽  
pp. 273-282
Author(s):  
Desimir Knezevic ◽  
Aleksandra Novoselskaya-Dragovich
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Molecular Mass ◽  
Gel Electrophoresis ◽  
Polyacrylamide Gel Electrophoresis ◽  
Triticum Aestivum L ◽  
Polyacrylamide Gel ◽  
Wheat Cultivars ◽  
Number Of Components ◽  
Winter Wheat Cultivars

Composition of gliadins encoded by Gli-D1 allele as well polymorphisms of Gli-D1 allele investigated in 25 wheat cultivars by using acid polyacrylamide gel electrophoresis. Electrophoregrams obtained by polyacrylamide gel electrophoresis were used for estimation variability of gliadin components and identification of gliadin blocks. Five gliadin blocks encoded by different alleles at Gli-D1 locus were apparently expressed and identified. Gliadin blocks differed according to number of components and their molecular mass. Variability of determined block components indicates that existing polymorphisms of gliadins alleles. Frequency of identified 5 alleles at Gli-D1 locus was in ratio from 4% to 52%. The highest frequency of b allele and the of g allele was found.

EFFECT OF A Rht GENE CONDITIONING THE SEMIDWARF CHARACTER ON WINTERHARDINESS IN WINTER WHEAT (Triticum aestivum L. em Thell)

1988 ◽  
Vol 68 (2) ◽  
pp. 301-309 ◽  
Author(s):  
D. J. GILLILAND ◽  
D. B. FOWLER
Keyword(s):  
Triticum Aestivum ◽  
Gibberellic Acid ◽  
Winter Wheat ◽  
Great Plains ◽  
Cold Hardiness ◽  
Triticum Aestivum L ◽  
Breeding Strategy ◽  
Sensitivity Analyses ◽  
Wheat Cultivars ◽  
Winter Wheat Cultivars

In the northern part of the North American Great Plains, the level of cultivar winter-hardiness required for winter wheat (Triticum aestivum L.) production is extremely high. Presently, available winter wheat cultivars with adequate winterhardiness are tall and, under favourable growing conditions, crop lodging and excessive amounts of straw can present serious production problems. Consequently, cultivars with short, stiff straw and a high harvest index would be desirable for high production areas within this region. However, semidwarf cultivars with superior winterhardiness have not yet been developed. In this study, six GA-insensitive (Rht) semidwarf parents with poor to moderate winterhardiness were crossed with three GA-sensitive (rht) tall parents possessing good winterhardiness to produce 20 different single, three-way and double crosses. These crosses were evaluated to determine if the GA-insensitive character could be combined with a high level of winterhardiness in winter wheat. Gibberellic acid (GA) sensitivity analyses of F2 seedlings established that a single GA-insensitive gene was involved in each cross. F2-derived F3 and F3-derived F4 lines were assessed for GA-sensitivity and winterhardiness levels were determined from field survival at several locations in Saskatchewan, Canada. Winter survival of homozygous GA-sensitive and GA-insensitive lines were similar in both generations. Lines with winterhardiness levels similar to those of the three tall parent cultivars were recovered in all GA-response classes. The absence of a meaningful pleiotropic effect of Rht genes on winterhardiness indicates that the reason semidwarf cultivars with superior winterhardiness levels have not been developed is due to the lack of a concentrated breeding effort to combine the two characters. A breeding strategy for the production of adapted winterhardy semidwarf winter wheat cultivars is discussed. The influence of endogenous gibberellin levels on cold hardiness in winter wheat is also considered.Key words: Cold hardiness, field survival, Triticum aestivum L, semidwarf, Gibberellic acid

Diversity of seed storage proteins in common wheat (Triticum aestivum L.)

2011 ◽  
Vol 9 (2) ◽  
pp. 256-259
Author(s):  
Zuzana Šramková ◽  
Edita Gregová ◽  
Svetlana Šliková ◽  
Ernest Šturdík
Keyword(s):  
Triticum Aestivum ◽  
Common Wheat ◽  
Gel Electrophoresis ◽  
Storage Proteins ◽  
Polyacrylamide Gel Electrophoresis ◽  
Sodium Dodecyl ◽  
Seed Storage ◽  
Seed Storage Proteins ◽  
Triticum Aestivum L ◽  
Polyacrylamide Gel

The objective of our study was to determine the composition of high-molecular weight-glutenin subunits (HMW-GS) in 120 cultivars of common wheat (Triticum aestivum L.). Fourteen alleles and 34 allelic compositions were detected using sodium dodecyl sulphate-polyacrylamide gel electrophoresis. The most frequent HMW-GS alleles at the Glu-A1, Glu-B1 and Glu-D1 loci were null (57.1%), 7+9 (43.3%) and 5+10 (61.9%), respectively. However, low-frequency HMW-GS alleles were also observed, such as 13+16, 20, 21, 7 and 18, encoded by the Glu-B1 locus, and 4+12, encoded by the Glu-D1 locus. The wheat–rye 1BL.1RS translocation was identified in 25 cultivars, using acid polyacrylamide gel electrophoresis. The Glu-score varied greatly, and some lines reached the maximum value of 10.

scholarly journals Winter Wheat (Triticum aestivum L.) Overwintering Under Different Sowing Densities

2017 ◽  
Vol 17 (4) ◽  
pp. 307
Author(s):  
Danijela Kondić ◽  
Maja Bajić ◽  
Desimir Knežević ◽  
Đurađ Hajder
Keyword(s):  
Triticum Aestivum ◽  
Statistical Analysis ◽  
Winter Wheat ◽  
Growth And Development ◽  
Necessary Conditions ◽  
Triticum Aestivum L ◽  
Wheat Cultivars ◽  
Agronomic Practices ◽  
Winter Wheat Cultivars ◽  
Banja Luka

Wheat overwintering ability affects the final number of plants that are able to continue their growth and development when necessary conditions are established. This research was conducted to study the overwintering ability of winter wheat cultivars (NS 40S, Prima and Nova Bosanka) under different sowing densities during 2013/14 and 2014/15 in agroecological conditions of Banja Luka. Standard agronomic practices for winter wheat were performed. Wheat cultivars were sown manually, under sowing densities with different seed arrangements: 384, 424, 451, 504, 544, 584, 588, and 604 seeds m-2. Counting of wheat plants in both examined years was carried out in the second decade of February. Statistical analysis was performed using factorial analysis of variance 2×8×3, while significant differences between treatments were tested by LSD test. The average overwintering plants percentage for all three examined wheat cultivars was 50.06%. Sowing density of 588 seeds m-2 stands out as the density with a tendency of the highest percentage of overwintering plants in both years.

scholarly journals The Rate of Productive Tillers per Plant of Winter Wheat (Triticum aestivum L.) Cultivars under Different Sowing Densities

2017 ◽  
Vol 17 (4) ◽  
pp. 345
Author(s):  
Danijela Kondić ◽  
Maja Bajić ◽  
Đurađ Hajder ◽  
Borut Bosančić
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Wheat Cultivar ◽  
Average Rate ◽  
Triticum Aestivum L ◽  
Wheat Cultivars ◽  
Winter Wheat Cultivar ◽  
Winter Wheat Cultivars ◽  
Set Up ◽  
Banja Luka

The aim of this two‒year research was to determine the rate of productive tillers per plant of different winter wheat cultivars under different sowing densities in the agroecological conditions of Banja Luka. NS 40S, Prima and Nova Bosanka wheat cultivars were sown at eight different sowing densities: 384, 424, 451, 504, 544, 584, 588 and 604 seeds m-2. The experiment was set up in the open field, and each wheat cultivar was sown at different sowing density in four replications. Statistical analysis was performed using factorial analysis of variance 2×8×3 while significant differences between treatments were tested by LSD test. The highest average rate of productive tillers per plant was achieved for the winter wheat cultivar NS 40S (2.29). The highest average rate of productive tillers per plant was achieved at sowing density of 384 seeds m-2 and the lowest at sowing density of 588 seeds m-2.

scholarly journals The apical dominance in winter wheat

1970 ◽  
Vol 21 ◽  
pp. 133-137 ◽  
Author(s):  
O. I. Zhuk
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Mineral Nutrition ◽  
Apical Dominance ◽  
Triticum Aestivum L ◽  
Stem Growth ◽  
Wheat Cultivars ◽  
Wheat Grain ◽  
Plant Mineral Nutrition ◽  
Winter Wheat Cultivars

Aim. The aim of this work was to study the influence of apical dominance in winter wheat on stem growth and productivity. Methods. Winter wheat (Triticum aestivum L.) cultivars ‘Podolyanka’ and ‘Pridniprovska’, ‘Novokievska’ were grown on mixture of soil and sand in pots with capacity of 7.5 kg. Optimal plant mineral nutrition was N160 P160 K160. The stem growth was measured. After ear maturing the quantity of grains in ear, and mass of 1000 grains were measured. Results were statistically analyzed with ANOVA. Results. The length of winter wheat stems and grain quantity in ear of main and lateral stems were studied under optimal mineral nutrition. The highest number of grains was detected in main stems. The tillers had less quantity of grains than main stems. The wheat cv. ‘Novokievska’ was more productive than cv. ‘Podolyanka’ and ‘Pridniprovska’. Conclusions. It is shown that the main stem is dominant over lateral stems of winter wheat cultivars ‘Podolyanka’ and ‘Pridniprovska’, ‘Novokievska’. Keywords: Triticum aestivum, winter wheat, grain, stem, apical dominance.

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