Impact of Combined Drought and Heat Stress and Nitrogen on Winter Wheat Productivity and End-Use Quality
Water deficit and heat stress are the main abiotic stresses affecting the yield and quality of winter wheat. The increasing frequency of the simultaneous occurrence of these two stresses might threaten global food security and drives the need to breed resilient high-quality cultivars. The aim of thi...
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MDPI AG
2022-06-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/12/6/1452 |
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| author | Gražina Statkevičiūtė Žilvinas Liatukas Jurgita Cesevičienė Kristina Jaškūnė Rita Armonienė Ramune Kuktaite Gintaras Brazauskas |
| author_facet | Gražina Statkevičiūtė Žilvinas Liatukas Jurgita Cesevičienė Kristina Jaškūnė Rita Armonienė Ramune Kuktaite Gintaras Brazauskas |
| author_sort | Gražina Statkevičiūtė |
| collection | DOAJ |
| description | Water deficit and heat stress are the main abiotic stresses affecting the yield and quality of winter wheat. The increasing frequency of the simultaneous occurrence of these two stresses might threaten global food security and drives the need to breed resilient high-quality cultivars. The aim of this study was to evaluate the grain yield, quality and gluten protein characteristics in 50 winter wheat cultivars and breeding lines during the harvest years of 2018 and 2019. The yield and grain quality components were affected more severely by the combined heat and drought in 2019 than the drought in 2018. Two nitrogen (N) fertilization regimes were studied, sustainable (S, 15/100/30 kg N ha<sup>−1</sup>) and high-input (HI, 15/100/100 kg N ha<sup>−1</sup>). The yield was higher in HI trials compared to S trials by 2.2 t ha<sup>−1</sup> in 2018 and by 2.4 t ha<sup>−1</sup> in 2019. Higher protein content and sedimentation volume and lower yield, test weight and starch content were observed under combined heat and drought stress in 2019 compared to 2018. Genotypes containing the <i>Glu-D1 x5-y10</i> allele exhibited the higher amounts of unextractable polymeric proteins (%UPP = 58.5%) in gluten studied by size exclusion liquid chromatography (SE-HPLC) as compared to <i>Glu-D1 x2-y12</i> allele (%UPP = 54.3%). Genotype was the main determinant of gluten protein characteristics regardless of the nitrogen application and the abiotic stress conditions. The results suggest that the relatively mild drought and heat events in Lithuania might not threaten gluten quality in the future; however, breeding efforts should be directed towards improved drought and heat stress resistance to ensure stable wheat productivity in the region. |
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| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-10T00:38:52Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
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| series | Agronomy |
| spelling | doaj.art-fa743e104e3f4490b8d8d893b05c34352023-11-23T15:12:00ZengMDPI AGAgronomy2073-43952022-06-01126145210.3390/agronomy12061452Impact of Combined Drought and Heat Stress and Nitrogen on Winter Wheat Productivity and End-Use QualityGražina Statkevičiūtė0Žilvinas Liatukas1Jurgita Cesevičienė2Kristina Jaškūnė3Rita Armonienė4Ramune Kuktaite5Gintaras Brazauskas6Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry, Instituto al. 1, Akademija, LT-58344 Kėdainiai District Municipality, LithuaniaInstitute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry, Instituto al. 1, Akademija, LT-58344 Kėdainiai District Municipality, LithuaniaInstitute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry, Instituto al. 1, Akademija, LT-58344 Kėdainiai District Municipality, LithuaniaInstitute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry, Instituto al. 1, Akademija, LT-58344 Kėdainiai District Municipality, LithuaniaInstitute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry, Instituto al. 1, Akademija, LT-58344 Kėdainiai District Municipality, LithuaniaDepartment of Plant Breeding, Swedish University of Agricultural Sciences (Alnarp), P.O. Box 190, SE-234 22 Lomma, SwedenInstitute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry, Instituto al. 1, Akademija, LT-58344 Kėdainiai District Municipality, LithuaniaWater deficit and heat stress are the main abiotic stresses affecting the yield and quality of winter wheat. The increasing frequency of the simultaneous occurrence of these two stresses might threaten global food security and drives the need to breed resilient high-quality cultivars. The aim of this study was to evaluate the grain yield, quality and gluten protein characteristics in 50 winter wheat cultivars and breeding lines during the harvest years of 2018 and 2019. The yield and grain quality components were affected more severely by the combined heat and drought in 2019 than the drought in 2018. Two nitrogen (N) fertilization regimes were studied, sustainable (S, 15/100/30 kg N ha<sup>−1</sup>) and high-input (HI, 15/100/100 kg N ha<sup>−1</sup>). The yield was higher in HI trials compared to S trials by 2.2 t ha<sup>−1</sup> in 2018 and by 2.4 t ha<sup>−1</sup> in 2019. Higher protein content and sedimentation volume and lower yield, test weight and starch content were observed under combined heat and drought stress in 2019 compared to 2018. Genotypes containing the <i>Glu-D1 x5-y10</i> allele exhibited the higher amounts of unextractable polymeric proteins (%UPP = 58.5%) in gluten studied by size exclusion liquid chromatography (SE-HPLC) as compared to <i>Glu-D1 x2-y12</i> allele (%UPP = 54.3%). Genotype was the main determinant of gluten protein characteristics regardless of the nitrogen application and the abiotic stress conditions. The results suggest that the relatively mild drought and heat events in Lithuania might not threaten gluten quality in the future; however, breeding efforts should be directed towards improved drought and heat stress resistance to ensure stable wheat productivity in the region.https://www.mdpi.com/2073-4395/12/6/1452drought stressgluten protein compositionheat stresspolymeric protein |
| spellingShingle | Gražina Statkevičiūtė Žilvinas Liatukas Jurgita Cesevičienė Kristina Jaškūnė Rita Armonienė Ramune Kuktaite Gintaras Brazauskas Impact of Combined Drought and Heat Stress and Nitrogen on Winter Wheat Productivity and End-Use Quality Agronomy drought stress gluten protein composition heat stress polymeric protein |
| title | Impact of Combined Drought and Heat Stress and Nitrogen on Winter Wheat Productivity and End-Use Quality |
| title_full | Impact of Combined Drought and Heat Stress and Nitrogen on Winter Wheat Productivity and End-Use Quality |
| title_fullStr | Impact of Combined Drought and Heat Stress and Nitrogen on Winter Wheat Productivity and End-Use Quality |
| title_full_unstemmed | Impact of Combined Drought and Heat Stress and Nitrogen on Winter Wheat Productivity and End-Use Quality |
| title_short | Impact of Combined Drought and Heat Stress and Nitrogen on Winter Wheat Productivity and End-Use Quality |
| title_sort | impact of combined drought and heat stress and nitrogen on winter wheat productivity and end use quality |
| topic | drought stress gluten protein composition heat stress polymeric protein |
| url | https://www.mdpi.com/2073-4395/12/6/1452 |
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