Abstract
The assessment of drought tolerance of winter soft wheat samples by a direct and an indirect method The article presents the results of assessment of drought tolerance of winter soft wheat samples under stress conditions ‘zasushnik’, as well as the results of study of wheat drought resistance according to the degree of seed germination on osmotic solutions. As a result of the studies, there were identified the samples with the highest degree of resistance to drought. According to drought resistance, the most significant values were found in the samples ‘Asket’ (79.3%), ‘1377/06’ (78.7%), ‘Kazachka’ (77.6%), ‘Krasa Dona’ (75.3%), ‘Shef’ (73.5% %), ‘Bonus’ (73.2%), ‘1232/13’ (73.2%), ‘352/11’ (71.6%), ‘Luchezar’ (71.3%), ‘1237/13’ (70.4%). The highest values of the index of complex stability were established in the samples ‘1377/06’ (255.4 per-unit), ‘Asket’ (253.4 per-unit) ‘Kazachka’ (252.1 per-unit), ‘1232/13’ (245.4 per-unit), ‘Shef’ (245,0 per-unit), ‘Krasa Dona’ (244,3 per-unit), ‘Bonus’ (236,9 per-unit), ‘Luchezar’ (236.2 per-unit), ‘352/11’ (240.0 per-unit). One of the indirect methods is the method of determining the level of resistance to complex drought; the samples ‘Asket’ (43%), ‘1237/13’ (40%), ‘Krasa Dona’ (33.0%), ‘260/09’ (31.0%), ‘Kazachka’ (31.0%), ‘1377/06’ (31.0%) showed the highest degree of resistance. In the conditions of model drought in comparison with the optimal conditions, all the studied samples showed a decrease of the trait ‘1000-kernel weight’. One of the reactions to lack of moisture is the reduction of productive stems from 1 m2. The reduction of productive stems in the experiment in relation to the control variety ranged from 4 to 45%. The kernel weight per main head decreased from 36 to 65% was observed in all studied samples. The varieties ‘Asket’ (226.2 g), ‘Krasa Dona’ (191.8) and ‘Lydia’ (190.4 g) produced high grain yields in strongly arid conditions.
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Claims 20
Claim · model-written summary
Asket had a drought resistance value of 79.3%.
Not reportedDirection
Verbatim
t0“WINTER SOFT WHEAT”
e0“According to drought resistance, the most significant values were found in the samples ‘Asket’ (79.3%), ‘1377/06’ (78.7%), ‘Kazachka’ (77.6%), ‘Krasa Dona’ (75.3%), ‘Shef’ (73.5% %), ‘Bonus’ (73.2%), ‘1232/13’ (73.2%), ‘352/11’ (71.6%), ‘Luchezar’ (71.3%), ‘1237/13’ (70.4%).”
Claim · model-written summary
1377/06 had a drought resistance value of 78.7%.
Not reportedDirection
Verbatim
t0“WINTER SOFT WHEAT”
e0“According to drought resistance, the most significant values were found in the samples ‘Asket’ (79.3%), ‘1377/06’ (78.7%), ‘Kazachka’ (77.6%), ‘Krasa Dona’ (75.3%), ‘Shef’ (73.5% %), ‘Bonus’ (73.2%), ‘1232/13’ (73.2%), ‘352/11’ (71.6%), ‘Luchezar’ (71.3%), ‘1237/13’ (70.4%).”
Claim · model-written summary
Kazachka had a drought resistance value of 77.6%.
Not reportedDirection
Verbatim
t0“WINTER SOFT WHEAT”
e0“According to drought resistance, the most significant values were found in the samples ‘Asket’ (79.3%), ‘1377/06’ (78.7%), ‘Kazachka’ (77.6%), ‘Krasa Dona’ (75.3%), ‘Shef’ (73.5% %), ‘Bonus’ (73.2%), ‘1232/13’ (73.2%), ‘352/11’ (71.6%), ‘Luchezar’ (71.3%), ‘1237/13’ (70.4%).”
Claim · model-written summary
Krasa Dona had a drought resistance value of 75.3%.
Not reportedDirection
Verbatim
t0“WINTER SOFT WHEAT”
e0“According to drought resistance, the most significant values were found in the samples ‘Asket’ (79.3%), ‘1377/06’ (78.7%), ‘Kazachka’ (77.6%), ‘Krasa Dona’ (75.3%), ‘Shef’ (73.5% %), ‘Bonus’ (73.2%), ‘1232/13’ (73.2%), ‘352/11’ (71.6%), ‘Luchezar’ (71.3%), ‘1237/13’ (70.4%).”
Claim · model-written summary
Shef had a drought resistance value of 73.5%.
Not reportedDirection
Verbatim
t0“WINTER SOFT WHEAT”
e0“According to drought resistance, the most significant values were found in the samples ‘Asket’ (79.3%), ‘1377/06’ (78.7%), ‘Kazachka’ (77.6%), ‘Krasa Dona’ (75.3%), ‘Shef’ (73.5% %), ‘Bonus’ (73.2%), ‘1232/13’ (73.2%), ‘352/11’ (71.6%), ‘Luchezar’ (71.3%), ‘1237/13’ (70.4%).”
Claim · model-written summary
Bonus had a drought resistance value of 73.2%.
Not reportedDirection
Verbatim
t0“WINTER SOFT WHEAT”
e0“According to drought resistance, the most significant values were found in the samples ‘Asket’ (79.3%), ‘1377/06’ (78.7%), ‘Kazachka’ (77.6%), ‘Krasa Dona’ (75.3%), ‘Shef’ (73.5% %), ‘Bonus’ (73.2%), ‘1232/13’ (73.2%), ‘352/11’ (71.6%), ‘Luchezar’ (71.3%), ‘1237/13’ (70.4%).”
Claim · model-written summary
1232/13 had a drought resistance value of 73.2%.
Not reportedDirection
Verbatim
t0“WINTER SOFT WHEAT”
e0“According to drought resistance, the most significant values were found in the samples ‘Asket’ (79.3%), ‘1377/06’ (78.7%), ‘Kazachka’ (77.6%), ‘Krasa Dona’ (75.3%), ‘Shef’ (73.5% %), ‘Bonus’ (73.2%), ‘1232/13’ (73.2%), ‘352/11’ (71.6%), ‘Luchezar’ (71.3%), ‘1237/13’ (70.4%).”
Claim · model-written summary
352/11 had a drought resistance value of 71.6%.
Not reportedDirection
Verbatim
t0“WINTER SOFT WHEAT”
e0“According to drought resistance, the most significant values were found in the samples ‘Asket’ (79.3%), ‘1377/06’ (78.7%), ‘Kazachka’ (77.6%), ‘Krasa Dona’ (75.3%), ‘Shef’ (73.5% %), ‘Bonus’ (73.2%), ‘1232/13’ (73.2%), ‘352/11’ (71.6%), ‘Luchezar’ (71.3%), ‘1237/13’ (70.4%).”
Claim · model-written summary
Luchezar had a drought resistance value of 71.3%.
Not reportedDirection
Verbatim
t0“WINTER SOFT WHEAT”
e0“According to drought resistance, the most significant values were found in the samples ‘Asket’ (79.3%), ‘1377/06’ (78.7%), ‘Kazachka’ (77.6%), ‘Krasa Dona’ (75.3%), ‘Shef’ (73.5% %), ‘Bonus’ (73.2%), ‘1232/13’ (73.2%), ‘352/11’ (71.6%), ‘Luchezar’ (71.3%), ‘1237/13’ (70.4%).”
Claim · model-written summary
1237/13 had a drought resistance value of 70.4%.
Not reportedDirection
Verbatim
t0“WINTER SOFT WHEAT”
e0“According to drought resistance, the most significant values were found in the samples ‘Asket’ (79.3%), ‘1377/06’ (78.7%), ‘Kazachka’ (77.6%), ‘Krasa Dona’ (75.3%), ‘Shef’ (73.5% %), ‘Bonus’ (73.2%), ‘1232/13’ (73.2%), ‘352/11’ (71.6%), ‘Luchezar’ (71.3%), ‘1237/13’ (70.4%).”
Claim · model-written summary
1377/06 had a complex stability index of 255.4 per-unit.
Verbatim
t0“WINTER SOFT WHEAT”
e0“The highest values of the index of complex stability were established in the samples ‘1377/06’ (255.4 per-unit), ‘Asket’ (253.4 per-unit) ‘Kazachka’ (252.1 per-unit), ‘1232/13’ (245.4 per-unit), ‘Shef’ (245,0 per-unit), ‘Krasa Dona’ (244,3 per-unit), ‘Bonus’ (236,9 per-unit), ‘Luchezar’ (236.2 per-unit), ‘352/11’ (240.0 per-unit).”
Claim · model-written summary
Asket had a complex stability index of 253.4 per-unit.
Verbatim
t0“WINTER SOFT WHEAT”
e0“The highest values of the index of complex stability were established in the samples ‘1377/06’ (255.4 per-unit), ‘Asket’ (253.4 per-unit) ‘Kazachka’ (252.1 per-unit), ‘1232/13’ (245.4 per-unit), ‘Shef’ (245,0 per-unit), ‘Krasa Dona’ (244,3 per-unit), ‘Bonus’ (236,9 per-unit), ‘Luchezar’ (236.2 per-unit), ‘352/11’ (240.0 per-unit).”
Claim · model-written summary
Kazachka had a complex stability index of 252.1 per-unit.
Verbatim
t0“WINTER SOFT WHEAT”
e0“The highest values of the index of complex stability were established in the samples ‘1377/06’ (255.4 per-unit), ‘Asket’ (253.4 per-unit) ‘Kazachka’ (252.1 per-unit), ‘1232/13’ (245.4 per-unit), ‘Shef’ (245,0 per-unit), ‘Krasa Dona’ (244,3 per-unit), ‘Bonus’ (236,9 per-unit), ‘Luchezar’ (236.2 per-unit), ‘352/11’ (240.0 per-unit).”
Claim · model-written summary
1232/13 had a complex stability index of 245.4 per-unit.
Verbatim
t0“WINTER SOFT WHEAT”
e0“The highest values of the index of complex stability were established in the samples ‘1377/06’ (255.4 per-unit), ‘Asket’ (253.4 per-unit) ‘Kazachka’ (252.1 per-unit), ‘1232/13’ (245.4 per-unit), ‘Shef’ (245,0 per-unit), ‘Krasa Dona’ (244,3 per-unit), ‘Bonus’ (236,9 per-unit), ‘Luchezar’ (236.2 per-unit), ‘352/11’ (240.0 per-unit).”
Claim · model-written summary
Shef had a complex stability index of 245,0 per-unit.
Verbatim
t0“WINTER SOFT WHEAT”
e0“The highest values of the index of complex stability were established in the samples ‘1377/06’ (255.4 per-unit), ‘Asket’ (253.4 per-unit) ‘Kazachka’ (252.1 per-unit), ‘1232/13’ (245.4 per-unit), ‘Shef’ (245,0 per-unit), ‘Krasa Dona’ (244,3 per-unit), ‘Bonus’ (236,9 per-unit), ‘Luchezar’ (236.2 per-unit), ‘352/11’ (240.0 per-unit).”
Claim · model-written summary
Krasa Dona had a complex stability index of 244,3 per-unit.
Verbatim
t0“WINTER SOFT WHEAT”
e0“The highest values of the index of complex stability were established in the samples ‘1377/06’ (255.4 per-unit), ‘Asket’ (253.4 per-unit) ‘Kazachka’ (252.1 per-unit), ‘1232/13’ (245.4 per-unit), ‘Shef’ (245,0 per-unit), ‘Krasa Dona’ (244,3 per-unit), ‘Bonus’ (236,9 per-unit), ‘Luchezar’ (236.2 per-unit), ‘352/11’ (240.0 per-unit).”
Claim · model-written summary
Bonus had a complex stability index of 236,9 per-unit.
Verbatim
t0“WINTER SOFT WHEAT”
e0“The highest values of the index of complex stability were established in the samples ‘1377/06’ (255.4 per-unit), ‘Asket’ (253.4 per-unit) ‘Kazachka’ (252.1 per-unit), ‘1232/13’ (245.4 per-unit), ‘Shef’ (245,0 per-unit), ‘Krasa Dona’ (244,3 per-unit), ‘Bonus’ (236,9 per-unit), ‘Luchezar’ (236.2 per-unit), ‘352/11’ (240.0 per-unit).”
Claim · model-written summary
Luchezar had a complex stability index of 236.2 per-unit.
Verbatim
t0“WINTER SOFT WHEAT”
e0“The highest values of the index of complex stability were established in the samples ‘1377/06’ (255.4 per-unit), ‘Asket’ (253.4 per-unit) ‘Kazachka’ (252.1 per-unit), ‘1232/13’ (245.4 per-unit), ‘Shef’ (245,0 per-unit), ‘Krasa Dona’ (244,3 per-unit), ‘Bonus’ (236,9 per-unit), ‘Luchezar’ (236.2 per-unit), ‘352/11’ (240.0 per-unit).”
Claim · model-written summary
352/11 had a complex stability index of 240.0 per-unit.
Verbatim
t0“WINTER SOFT WHEAT”
e0“The highest values of the index of complex stability were established in the samples ‘1377/06’ (255.4 per-unit), ‘Asket’ (253.4 per-unit) ‘Kazachka’ (252.1 per-unit), ‘1232/13’ (245.4 per-unit), ‘Shef’ (245,0 per-unit), ‘Krasa Dona’ (244,3 per-unit), ‘Bonus’ (236,9 per-unit), ‘Luchezar’ (236.2 per-unit), ‘352/11’ (240.0 per-unit).”
Claim · model-written summary
All tested wheat samples showed decreased 1000-kernel weight under model drought.
Verbatim
t0“WINTER SOFT WHEAT”
e0“In the conditions of model drought in comparison with the optimal conditions, all the studied samples showed a decrease of the trait ‘1000-kernel weight’.”
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