scholarly journals Development high yielding, good qualitative winter wheat cultivar (Triticum aestivum L.) Myrlyena

2007 ◽  
Vol 0 (6) ◽  
pp. 35-39
Author(s):  
О. М. Черемха
2017 ◽  
Vol 17 (4) ◽  
pp. 345
Author(s):  
Danijela Kondić ◽  
Maja Bajić ◽  
Đurađ Hajder ◽  
Borut Bosančić

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.


1999 ◽  
Vol 79 (4) ◽  
pp. 603-605 ◽  
Author(s):  
D. B. Fowler

CDC Harrier is a winter-hardy, strong-strawed, semidwarf winter wheat (Triticum aestivum L.) with the high grain yield and agronomic performance of CDC Kestrel. CDC Harrier is the first winter wheat cultivar with a high level of stem rust resistance to be registered for production in western Canada. The grain quality characteristics of CDC Harrier are similar to thos of CDC Kestrel. CDC Harrier is eligible for grades of the Canada Western Red Winter Wheat class. Key words: Triticum aestivum L., cultivar description, wheat (winter)


Genetics ◽  
1988 ◽  
Vol 119 (2) ◽  
pp. 453-456
Author(s):  
R S Zemetra ◽  
R Morris

Abstract During a study on the genetic control of winterhardiness in winter wheat (Triticum aestivum L. group aestivum), a gene that affected vernalization was found on chromosome 3B in the winter wheat cultivar ;Wichita.' When chromosome 3B from Wichita was substituted into the winter wheat cultivar ;Cheyenne,' the resultant substitution line exhibited a spring growth habit. This is unusual since a cross between the cultivars Wichita and Cheyenne results in progeny that exhibit the winter growth habit. The F(2) plants from a cross of the 3B substitution line to Cheyenne, the recipient parent, segregated 3:1 for heading/no heading response in the absence of vernalization (chi(2) = 2.44). Earliness of heading appeared to be due to an additive effect of the 3B gene as shown by the segregation ratio 1:2:1 (early heading-later heading-no heading) (chi(2) = 2.74). This vernalization gene differs from previously described vernalization genes because, while dominant in a Cheyenne background, its expression is suppressed in Wichita. The gene may have an effect on winter hardiness in Wichita. In a field test for winter survival the 3B substitution line had only 5% survival, while Wichita and Cheyenne had 50 and 80% survival, respectively. No other substitution line significantly reduced winter survival. The difference between Wichita and Cheyenne in winterhardiness may be due to the vernalization gene carried on the 3B chromosome.


2012 ◽  
Vol 92 (1) ◽  
pp. 183-189 ◽  
Author(s):  
R. J. Graf ◽  
J. B. Thomas ◽  
B. L. Beres ◽  
D. A. Gaudet ◽  
A. Laroche ◽  
...  

Graf, R. J., Thomas, J. B., Beres, B. L., Gaudet, D. A., Laroche, A. and Eudes, F. 2012. Flourish hard red winter wheat. Can. J. Plant Sci. 92: 183–189. Flourish is a hard red winter wheat (Triticum aestivum L.) eligible for all grades of the Canada Western Red Winter wheat class. Compared with the check cultivars in the Western Winter Wheat Cooperative registration trials (CDC Osprey, AC Bellatrix, Radiant, CDC Buteo), Flourish produced similar grain yield with earlier maturity, shorter straw, improved lodging resistance and higher grain protein content. Flourish displayed winter survival similar to the checks. In the eastern prairie rust hazard region of Manitoba and eastern Saskatchewan, Flourish yielded about 5% more grain than CDC Buteo and CDC Falcon, cultivars that are well-adapted and widely grown in the region. Flourish exhibited intermediate resistance to stem and leaf rust combined with moderate resistance to stripe rust and common bunt, a unique combination of disease resistance traits for a western Canadian winter wheat cultivar.


Genome ◽  
1989 ◽  
Vol 32 (6) ◽  
pp. 1068-1073 ◽  
Author(s):  
Dalia T. Kudirka ◽  
Gideon W. Schaeffer ◽  
P. Stephen Baenziger

Plants were regenerated from anther calli of the winter wheat cultivar 'Centurk' (Triticum aestivum L. em. Thell.). Cells of root tips of young regenerated plants were assayed for ploidy and plants were categorized as polyhaploid, mixoploid, or hexaploid. Tillering and seed set were analyzed in plants that survived to maturity. Less than 1% of the tiller population produced by polyhaploid plants set seed. In contrast, 73% of the tiller population produced by hexaploid plants set seed, with significantly greater seed set per fertile tiller. These data were taken to indicate that the ploidy composition of root tips of young regenerated plants reflected that of the reproductive structures of mature regenerated plants. Common patterns of aneuploidy in hexaploid and hyperploid cells found among roots of individual plants confirmed the idea that doubling of the cell genome occurred before plant regeneration. Polyhaploid and hexaploid cells were found in individual root tips of mixoploid plants regenerated from calli that were known to be cytochimeric. The possibility that regeneration of plants can occur from more than a single cell of an anther callus is discussed.Key words: anther culture, Triticum aestivum, wheat, mixoploidy, aneuploidy, regeneration.


1988 ◽  
Vol 39 (2) ◽  
pp. 129
Author(s):  
RJ Fletcher

The Chinese Spring (Cheyenne) chromosome substitution series was grown in three non-vernalizing environments and heading dates recorded. A vernalization treatment was superimposed on one environment. The major component of the vernalization response of the cultivar Cheyenne was located in the chromosome 5D line, presumably due to the presence of vrn3. Minor effects were located in other CS(Cnn) lines. Lines derived from the cross CS/CS(Cnn 5D) were grown in non-vernalizing environments and their Vrn3/vrn3 genotypes postulated. Differences between lines in resistance to freezing injury during stem elongation were not associated with variation of the Vrn3/vrn3 locus.


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