The Effects of Cultivar, Nitrogen Supply and Soil Type on Radiation Use Efficiency and Harvest Index in Spring Wheat
There is an urgent need among plant breeders for a deeper understanding of the links between wheat genotypes and their ability to utilize light for biomass production and their efficiency at converting the biomass into grain yield. This field trail was conducted to investigate the variations in radi...
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| Format: | Article |
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MDPI AG
2020-09-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/10/9/1391 |
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| author | Xizi Wang Svend Christensen Jesper Svensgaard Signe M. Jensen Fulai Liu |
| author_facet | Xizi Wang Svend Christensen Jesper Svensgaard Signe M. Jensen Fulai Liu |
| author_sort | Xizi Wang |
| collection | DOAJ |
| description | There is an urgent need among plant breeders for a deeper understanding of the links between wheat genotypes and their ability to utilize light for biomass production and their efficiency at converting the biomass into grain yield. This field trail was conducted to investigate the variations in radiation use efficiency (RUE) and harvest index (HI) of four spring wheat cultivars grown on two soil types with two nitrogen (N) fertilization levels. Grain yield (GY) was significantly higher with 200 kg N ha<sup>−1</sup> than 100 kg N ha<sup>−1</sup> and on clay soil than on sandy soil, and a similar trend was observed for shoot dry matter (DM) at maturity. RUE and HI was neither affected by cultivar nor N-fertilization, but was affected by soil type, with a significantly higher RUE and HI on clay than on sandy soil. The differences of water holding capacity between the two soil types was suggested to be a major factor influencing RUE and HI as exemplified by the principal component analysis. Thus, to achieve a high RUE and/or HI, sustaining a good soil water status during the critical growth stages of wheat crops is essential, especially on sandy soils with a low water holding capacity. |
| first_indexed | 2024-03-10T16:20:41Z |
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| id | doaj.art-85f77d07304148fab6fb2d2fcc659dcb |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-10T16:20:41Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
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| series | Agronomy |
| spelling | doaj.art-85f77d07304148fab6fb2d2fcc659dcb2023-11-20T13:44:07ZengMDPI AGAgronomy2073-43952020-09-01109139110.3390/agronomy10091391The Effects of Cultivar, Nitrogen Supply and Soil Type on Radiation Use Efficiency and Harvest Index in Spring WheatXizi Wang0Svend Christensen1Jesper Svensgaard2Signe M. Jensen3Fulai Liu4Department of Plant and Environmental Sciences, University of Copenhagen, Højbakkegaard Alle 13, 2630 Taastrup, DenmarkDepartment of Plant and Environmental Sciences, University of Copenhagen, Højbakkegaard Alle 13, 2630 Taastrup, DenmarkDepartment of Plant and Environmental Sciences, University of Copenhagen, Højbakkegaard Alle 13, 2630 Taastrup, DenmarkDepartment of Plant and Environmental Sciences, University of Copenhagen, Højbakkegaard Alle 13, 2630 Taastrup, DenmarkDepartment of Plant and Environmental Sciences, University of Copenhagen, Højbakkegaard Alle 13, 2630 Taastrup, DenmarkThere is an urgent need among plant breeders for a deeper understanding of the links between wheat genotypes and their ability to utilize light for biomass production and their efficiency at converting the biomass into grain yield. This field trail was conducted to investigate the variations in radiation use efficiency (RUE) and harvest index (HI) of four spring wheat cultivars grown on two soil types with two nitrogen (N) fertilization levels. Grain yield (GY) was significantly higher with 200 kg N ha<sup>−1</sup> than 100 kg N ha<sup>−1</sup> and on clay soil than on sandy soil, and a similar trend was observed for shoot dry matter (DM) at maturity. RUE and HI was neither affected by cultivar nor N-fertilization, but was affected by soil type, with a significantly higher RUE and HI on clay than on sandy soil. The differences of water holding capacity between the two soil types was suggested to be a major factor influencing RUE and HI as exemplified by the principal component analysis. Thus, to achieve a high RUE and/or HI, sustaining a good soil water status during the critical growth stages of wheat crops is essential, especially on sandy soils with a low water holding capacity.https://www.mdpi.com/2073-4395/10/9/1391harvest indexnitrogenradiation use efficiencywater availabilitywheat |
| spellingShingle | Xizi Wang Svend Christensen Jesper Svensgaard Signe M. Jensen Fulai Liu The Effects of Cultivar, Nitrogen Supply and Soil Type on Radiation Use Efficiency and Harvest Index in Spring Wheat Agronomy harvest index nitrogen radiation use efficiency water availability wheat |
| title | The Effects of Cultivar, Nitrogen Supply and Soil Type on Radiation Use Efficiency and Harvest Index in Spring Wheat |
| title_full | The Effects of Cultivar, Nitrogen Supply and Soil Type on Radiation Use Efficiency and Harvest Index in Spring Wheat |
| title_fullStr | The Effects of Cultivar, Nitrogen Supply and Soil Type on Radiation Use Efficiency and Harvest Index in Spring Wheat |
| title_full_unstemmed | The Effects of Cultivar, Nitrogen Supply and Soil Type on Radiation Use Efficiency and Harvest Index in Spring Wheat |
| title_short | The Effects of Cultivar, Nitrogen Supply and Soil Type on Radiation Use Efficiency and Harvest Index in Spring Wheat |
| title_sort | effects of cultivar nitrogen supply and soil type on radiation use efficiency and harvest index in spring wheat |
| topic | harvest index nitrogen radiation use efficiency water availability wheat |
| url | https://www.mdpi.com/2073-4395/10/9/1391 |
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