SENSITIVITY OF SOFT WHEAT CULTIVARS (TRITICUM AESTIVUM) FROM RUST

2021 ◽  
pp. 31-43
Author(s):  
Besnik Skenderasi ◽  
Shpend Shahini ◽  
Nikolin Karapanci
2016 ◽  
Vol 3 (3) ◽  
pp. 22-27
Author(s):  
O. Galaiev

Aim. To determine the correspondence of different alleles of locus Xbarc55-2В to alleles of gene Ne2, different in their strength, and to investigate the distribution of alleles of locus Xbarc55-2В and the corresponding alleles of gene Ne2 from wheat cultivars of Ukrainian and Russian selection. Methods. Polymerase chain reaction, electrophoresis in PAAG, statistical methods. Results. The alleles of locus Xbarc55-2В, bound to the hybrid necrosis gene Ne2, were used to identify the genotypes of 290 soft wheat cultivars of different geographic origin. The correspondence of different alleles of locus Xbarc55-2В to alleles of gene Ne2, different in their strength, was defi ned: 142 bp – ne2, 136 bp – Ne2 w/m , 132 bp – Ne2 ms , 126 bp – Ne2 s . The distribution of the identifi ed alleles of gene Ne2 among the wheat cultivars of Ukrainian and Russian selection was demonstrated. Conclusions. The advantage of some alleles for cultivars of different regions was determined, which may testify to their selection and adaptation value.


2007 ◽  
Vol 42 (2) ◽  
pp. 246-250 ◽  
Author(s):  
M. Di Stasio ◽  
P. Vacca ◽  
N. Piciocchi ◽  
C. Meccariello ◽  
M. G. Volpe

Weed Science ◽  
1988 ◽  
Vol 36 (5) ◽  
pp. 541-544 ◽  
Author(s):  
Carl Fedtke ◽  
Robert R. Schmidt

14C-labeled 4-amino-6-(1,1-dimethylethyl)-3-(ethylthio)-1,2,4-triazin-5(4H)-one (ethiozin)3was metabolized more rapidly in tolerant than in sensitive wheat,Triticum aestivumL., cultivars. After a 6-h herbicidal pulse, the main metabolites were conjugates at all incubation times up to 48 h. The levels of deaminated and dethioethylated metabolites never exceeded 4% of the extractable radioactivity and also did not differ between tolerant and sensitive plants. On the contrary, 92% of the extractable radioactivity was in conjugates after 24 h in the leaves of tolerant plants compared to 25% in the leaves of sensitive plants. The differently sensitive wheat cultivars conjugated metribuzin, 4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-one, at about half the rate that was observed with ethiozin. This finding may explain the fact that most wheat cultivars are more sensitive to metribuzin compared with ethiozin.


2011 ◽  
Vol 59 (13) ◽  
pp. 7075-7082 ◽  
Author(s):  
Geraldine A. Toole ◽  
Gwénaëlle Le Gall ◽  
Ian J. Colquhoun ◽  
Phil Johnson ◽  
Zoltan Bedö ◽  
...  

Author(s):  
Duangjai Nachiangmai ◽  
Bernie Dell ◽  
Longbin Huang ◽  
Richard W. Bell ◽  
Benjavan Rerkasem

Plants ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 2557
Author(s):  
Dilara Maslennikova ◽  
Oksana Lastochkina

We evaluated the effect of endobacteria Bacillus subtilis (strain 10–4) as a co-inoculant for promoting plant growth and redox metabolism in two contrasting genotypes of Triticum aestivum L. (wheat): Ekada70 (drought tolerant (DT)) and Salavat Yulaev (drought susceptible (DS)) in early stages of adaptation to drought (12% PEG–6000). Results revealed that drought reduced growth and dramatically augmented oxidative stress markers, i.e., hydrogen peroxide (H2O2) and lipid peroxidation (MDA). Furthermore, the depletion of ascorbate (AsA) and glutathione (GSH), accompanied by a significant activation of ascorbate peroxidase (APX) and glutathione reductase (GR), in both stressed wheat cultivars (which was more pronounced in DS genotype) was found. B. subtilis had a protective effect on growth and antioxidant status, wherein the stabilization of AsA and GSH levels was revealed. This was accompanied by a decrease of drought-caused APX and GR activation in DS plants, while in DT plants additional antioxidant accumulation and GR activation were observed. H2O2 and MDA were considerably reduced in both drought-stressed wheat genotypes because of the application of B. subtilis. Thus, the findings suggest the key roles in B. subtilis-mediated drought tolerance in DS cv. Salavat Yulaev and DT cv. Ekada70 played are AsA and GSH, respectively; which, in both cases, resulted in reduced cell oxidative damage and improved growth in seedlings under drought.


Genetika ◽  
2007 ◽  
Vol 39 (2) ◽  
pp. 273-282
Author(s):  
Desimir Knezevic ◽  
Aleksandra Novoselskaya-Dragovich

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.


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