Eco-physiology and environmental impacts of newly developed rice genotypes for improved yield and nitrogen use efficiency coordinately

Weilu  Wang; Dongling  Ji; Shaobing Peng; Irakli  Loladze; Matthew Tom  Harrison; William J.  Davies; Pete Smith; Longlong  Xia; Bin Wang; Ke  Liu; Kuanyu  Zhu; Wen Zhang; Linhan  Ouyang; Lijun  Liu; Junfei  Gu; Hao Zhang; Jianchang  Yang; Fei Wang

doi:10.1016/j.scitotenv.2023.165294

Eco-physiology and environmental impacts of newly developed rice genotypes for improved yield and nitrogen use efficiency coordinately

Weilu Wang, Dongling Ji, Shaobing Peng , Irakli Loladze, Matthew Tom Harrison, William J. Davies, Pete Smith, Longlong Xia, Bin Wang, Ke Liu, Kuanyu Zhu, Wen Zhang, Linhan Ouyang, Lijun Liu, Junfei Gu, Hao Zhang, Jianchang Yang^* (Corresponding Author), Fei Wang^* (Corresponding Author)

^*Corresponding author for this work

Aberdeen Centre For Environmental Sustainability

Research output: Contribution to journal › Article › peer-review

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Abstract

Significant advancements have been made in understanding the genetic regulation of nitrogen use efficiency (NUE) and identifying crucial NUE genes in rice. However, the development of rice genotypes that simultaneously exhibit high yield and NUE has lagged behind these theoretical advancements. The grain yield, NUE, and greenhouse gas (GHG) emissions of newly-bred rice genotypes under reduced nitrogen application remain largely unknown. To address this knowledge gap, field experiments were conducted, involving 80 indica (14 to 19 rice genotypes each year in Wuxue, Hubei) and 12 japonica (8 to 12 rice genotypes each year in Yangzhou, Jiangsu). Yield, NUE, agronomy, and soil parameters were assessed, and climate data were recorded. The experiments aimed to assess genotypic variations in yield and NUE among these genotypes and to investigate the eco-physiological basis and environmental impacts
70 of coordinating high yield and high NUE. The results showed significant variations in yield and NUE among the genotypes, with 47 genotypes classified as moderate-high yield with high NUE (MHY_HNUE). These genotypes demonstrated the higher yields and NUE levels, with 9.6 t ha-1 54.4 kg kg-1
, 108.1 kg kg-1 73 , and 64% for yield, NUE for grain and biomass production, and N harvest index, respectively. Nitrogen uptake and tissue concentration were key drivers of the relationship between yield and NUE, particularly N uptake at heading and N concentrations in both straw and grain at maturity. Increase in pre-anthesis temperature consistently lowered yield and NUE. Genotypes within the MHY_HNUE group exhibited higher methane emissions but lower nitrous oxide emissions compared to those in the low to middle yield and NUE
group, resulting in a 12.8% reduction in the yield-scaled greenhouse gas balance. In conclusion, prioritizing crop breeding efforts on yield and resource use efficiency, as well as developing genotypes resilient to high temperatures with lower GHGs, can mitigate planetary warming.

Original language	English
Article number	165294
Number of pages	14
Journal	Science of the Total Environment
Volume	896
Early online date	7 Jul 2023
DOIs	https://doi.org/10.1016/j.scitotenv.2023.165294
Publication status	Published - 20 Oct 2023

Bibliographical note

Acknowledgments
This work was supported by the National Natural Science Foundation of China (Grant 694 No. 32201888, 32071943, 32071944, 32272197), the Provincial Natural Science Foundation of Jiangsu (BK20200923), the National Key Research and Development Program of China (SQ2022YFD1500402, SQ2022YFD2300304), and the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD). The authors express thanks to Professor Lewis H. Ziska for comments on the manuscript.

Data Availability Statement

Data will be made available on request.

Keywords

rice yield
nitrogen use efficiency
greenhouse gas emissions
high temperature
newly-bred rice genotypes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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Wang, W., Ji, D., Peng , S., Loladze, I., Harrison, M. T., Davies, W. J., Smith, P., Xia, L., Wang, B., Liu, K., Zhu, K., Zhang, W., Ouyang, L., Liu, L., Gu, J., Zhang, H., Yang, J., & Wang, F. (2023). Eco-physiology and environmental impacts of newly developed rice genotypes for improved yield and nitrogen use efficiency coordinately. Science of the Total Environment, 896, Article 165294. https://doi.org/10.1016/j.scitotenv.2023.165294

Wang, W, Ji, D, Peng , S, Loladze, I, Harrison, MT, Davies, WJ, Smith, P, Xia, L, Wang, B, Liu, K, Zhu, K, Zhang, W, Ouyang, L, Liu, L, Gu, J, Zhang, H, Yang, J & Wang, F 2023, 'Eco-physiology and environmental impacts of newly developed rice genotypes for improved yield and nitrogen use efficiency coordinately', Science of the Total Environment, vol. 896, 165294. https://doi.org/10.1016/j.scitotenv.2023.165294

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abstract = "Significant advancements have been made in understanding the genetic regulation of nitrogen use efficiency (NUE) and identifying crucial NUE genes in rice. However, the development of rice genotypes that simultaneously exhibit high yield and NUE has lagged behind these theoretical advancements. The grain yield, NUE, and greenhouse gas (GHG) emissions of newly-bred rice genotypes under reduced nitrogen application remain largely unknown. To address this knowledge gap, field experiments were conducted, involving 80 indica (14 to 19 rice genotypes each year in Wuxue, Hubei) and 12 japonica (8 to 12 rice genotypes each year in Yangzhou, Jiangsu). Yield, NUE, agronomy, and soil parameters were assessed, and climate data were recorded. The experiments aimed to assess genotypic variations in yield and NUE among these genotypes and to investigate the eco-physiological basis and environmental impacts70 of coordinating high yield and high NUE. The results showed significant variations in yield and NUE among the genotypes, with 47 genotypes classified as moderate-high yield with high NUE (MHY_HNUE). These genotypes demonstrated the higher yields and NUE levels, with 9.6 t ha-1 54.4 kg kg-1, 108.1 kg kg-1 73 , and 64% for yield, NUE for grain and biomass production, and N harvest index, respectively. Nitrogen uptake and tissue concentration were key drivers of the relationship between yield and NUE, particularly N uptake at heading and N concentrations in both straw and grain at maturity. Increase in pre-anthesis temperature consistently lowered yield and NUE. Genotypes within the MHY_HNUE group exhibited higher methane emissions but lower nitrous oxide emissions compared to those in the low to middle yield and NUEgroup, resulting in a 12.8% reduction in the yield-scaled greenhouse gas balance. In conclusion, prioritizing crop breeding efforts on yield and resource use efficiency, as well as developing genotypes resilient to high temperatures with lower GHGs, can mitigate planetary warming.",

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author = "Weilu Wang and Dongling Ji and Shaobing Peng and Irakli Loladze and Harrison, {Matthew Tom} and Davies, {William J.} and Pete Smith and Longlong Xia and Bin Wang and Ke Liu and Kuanyu Zhu and Wen Zhang and Linhan Ouyang and Lijun Liu and Junfei Gu and Hao Zhang and Jianchang Yang and Fei Wang",

note = "Acknowledgments This work was supported by the National Natural Science Foundation of China (Grant 694 No. 32201888, 32071943, 32071944, 32272197), the Provincial Natural Science Foundation of Jiangsu (BK20200923), the National Key Research and Development Program of China (SQ2022YFD1500402, SQ2022YFD2300304), and the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD). The authors express thanks to Professor Lewis H. Ziska for comments on the manuscript.",

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T1 - Eco-physiology and environmental impacts of newly developed rice genotypes for improved yield and nitrogen use efficiency coordinately

AU - Wang, Weilu

AU - Ji, Dongling

AU - Peng , Shaobing

AU - Loladze, Irakli

AU - Harrison, Matthew Tom

AU - Davies, William J.

AU - Smith, Pete

AU - Xia, Longlong

AU - Wang, Bin

AU - Liu, Ke

AU - Zhu, Kuanyu

AU - Zhang, Wen

AU - Ouyang, Linhan

AU - Liu, Lijun

AU - Gu, Junfei

AU - Zhang, Hao

AU - Yang, Jianchang

AU - Wang, Fei

N1 - Acknowledgments This work was supported by the National Natural Science Foundation of China (Grant 694 No. 32201888, 32071943, 32071944, 32272197), the Provincial Natural Science Foundation of Jiangsu (BK20200923), the National Key Research and Development Program of China (SQ2022YFD1500402, SQ2022YFD2300304), and the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD). The authors express thanks to Professor Lewis H. Ziska for comments on the manuscript.

PY - 2023/10/20

Y1 - 2023/10/20

N2 - Significant advancements have been made in understanding the genetic regulation of nitrogen use efficiency (NUE) and identifying crucial NUE genes in rice. However, the development of rice genotypes that simultaneously exhibit high yield and NUE has lagged behind these theoretical advancements. The grain yield, NUE, and greenhouse gas (GHG) emissions of newly-bred rice genotypes under reduced nitrogen application remain largely unknown. To address this knowledge gap, field experiments were conducted, involving 80 indica (14 to 19 rice genotypes each year in Wuxue, Hubei) and 12 japonica (8 to 12 rice genotypes each year in Yangzhou, Jiangsu). Yield, NUE, agronomy, and soil parameters were assessed, and climate data were recorded. The experiments aimed to assess genotypic variations in yield and NUE among these genotypes and to investigate the eco-physiological basis and environmental impacts70 of coordinating high yield and high NUE. The results showed significant variations in yield and NUE among the genotypes, with 47 genotypes classified as moderate-high yield with high NUE (MHY_HNUE). These genotypes demonstrated the higher yields and NUE levels, with 9.6 t ha-1 54.4 kg kg-1, 108.1 kg kg-1 73 , and 64% for yield, NUE for grain and biomass production, and N harvest index, respectively. Nitrogen uptake and tissue concentration were key drivers of the relationship between yield and NUE, particularly N uptake at heading and N concentrations in both straw and grain at maturity. Increase in pre-anthesis temperature consistently lowered yield and NUE. Genotypes within the MHY_HNUE group exhibited higher methane emissions but lower nitrous oxide emissions compared to those in the low to middle yield and NUEgroup, resulting in a 12.8% reduction in the yield-scaled greenhouse gas balance. In conclusion, prioritizing crop breeding efforts on yield and resource use efficiency, as well as developing genotypes resilient to high temperatures with lower GHGs, can mitigate planetary warming.

AB - Significant advancements have been made in understanding the genetic regulation of nitrogen use efficiency (NUE) and identifying crucial NUE genes in rice. However, the development of rice genotypes that simultaneously exhibit high yield and NUE has lagged behind these theoretical advancements. The grain yield, NUE, and greenhouse gas (GHG) emissions of newly-bred rice genotypes under reduced nitrogen application remain largely unknown. To address this knowledge gap, field experiments were conducted, involving 80 indica (14 to 19 rice genotypes each year in Wuxue, Hubei) and 12 japonica (8 to 12 rice genotypes each year in Yangzhou, Jiangsu). Yield, NUE, agronomy, and soil parameters were assessed, and climate data were recorded. The experiments aimed to assess genotypic variations in yield and NUE among these genotypes and to investigate the eco-physiological basis and environmental impacts70 of coordinating high yield and high NUE. The results showed significant variations in yield and NUE among the genotypes, with 47 genotypes classified as moderate-high yield with high NUE (MHY_HNUE). These genotypes demonstrated the higher yields and NUE levels, with 9.6 t ha-1 54.4 kg kg-1, 108.1 kg kg-1 73 , and 64% for yield, NUE for grain and biomass production, and N harvest index, respectively. Nitrogen uptake and tissue concentration were key drivers of the relationship between yield and NUE, particularly N uptake at heading and N concentrations in both straw and grain at maturity. Increase in pre-anthesis temperature consistently lowered yield and NUE. Genotypes within the MHY_HNUE group exhibited higher methane emissions but lower nitrous oxide emissions compared to those in the low to middle yield and NUEgroup, resulting in a 12.8% reduction in the yield-scaled greenhouse gas balance. In conclusion, prioritizing crop breeding efforts on yield and resource use efficiency, as well as developing genotypes resilient to high temperatures with lower GHGs, can mitigate planetary warming.

KW - rice yield

KW - nitrogen use efficiency

KW - greenhouse gas emissions

KW - high temperature

KW - newly-bred rice genotypes

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DO - 10.1016/j.scitotenv.2023.165294

M3 - Article

C2 - 37414171

SN - 0048-9697

VL - 896

JO - Science of the Total Environment

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Eco-physiology and environmental impacts of newly developed rice genotypes for improved yield and nitrogen use efficiency coordinately

Abstract

Bibliographical note

Data Availability Statement

Keywords

UN SDGs

Access to Document

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Cite this