The Fraction of Intercepted Radiation to Nitrogen Absorption as an Indicator for Assessing Physiological Nitrogen Use Efficiency in Rice
Improving nitrogen (N) use efficiency is important for achieving sustainable rice production in China. Physiological N use efficiency (PNUE) is a measure of a plant’s ability to convert absorbed N into biomass, and can be calculated as the product of the fraction of intercepted radiation to N absorp...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-07-01
|
| Series: | Agronomy |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4395/12/7/1603 |
| _version_ | 1797407903182749696 |
|---|---|
| author | Min Huang Jiana Chen Fangbo Cao |
| author_facet | Min Huang Jiana Chen Fangbo Cao |
| author_sort | Min Huang |
| collection | DOAJ |
| description | Improving nitrogen (N) use efficiency is important for achieving sustainable rice production in China. Physiological N use efficiency (PNUE) is a measure of a plant’s ability to convert absorbed N into biomass, and can be calculated as the product of the fraction of intercepted radiation to N absorption (FIRNA) and radiation use efficiency (RUE). This study evaluated the relationships between PNUE with FIRNA and RUE in three widely grown, high-yielding rice varieties using data obtained from two N fertilization experiments conducted in 2020 and 2021. The results show that PNUE was significantly positively related to FIRNA, but not significantly related to RUE in all three rice varieties. PNUE increased by 7.4–10.3 g g<sup>−1</sup> for each 10 MJ g<sup>−1</sup> increase in FIRNA. These results suggest that FIRNA can serve as an indicator for assessing PNUE in rice, which has implications for the phenotypic identification of rice varieties with high PNUE. |
| first_indexed | 2024-03-09T03:48:26Z |
| format | Article |
| id | doaj.art-6f6c35612f0746ea8a486db5f26ed1ca |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-09T03:48:26Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-6f6c35612f0746ea8a486db5f26ed1ca2023-12-03T14:30:47ZengMDPI AGAgronomy2073-43952022-07-01127160310.3390/agronomy12071603The Fraction of Intercepted Radiation to Nitrogen Absorption as an Indicator for Assessing Physiological Nitrogen Use Efficiency in RiceMin Huang0Jiana Chen1Fangbo Cao2Rice and Product Ecophysiology, Key Laboratory of Ministry of Education for Crop Physiology and Molecular Biology, Hunan Agricultural University, Changsha 410128, ChinaRice and Product Ecophysiology, Key Laboratory of Ministry of Education for Crop Physiology and Molecular Biology, Hunan Agricultural University, Changsha 410128, ChinaRice and Product Ecophysiology, Key Laboratory of Ministry of Education for Crop Physiology and Molecular Biology, Hunan Agricultural University, Changsha 410128, ChinaImproving nitrogen (N) use efficiency is important for achieving sustainable rice production in China. Physiological N use efficiency (PNUE) is a measure of a plant’s ability to convert absorbed N into biomass, and can be calculated as the product of the fraction of intercepted radiation to N absorption (FIRNA) and radiation use efficiency (RUE). This study evaluated the relationships between PNUE with FIRNA and RUE in three widely grown, high-yielding rice varieties using data obtained from two N fertilization experiments conducted in 2020 and 2021. The results show that PNUE was significantly positively related to FIRNA, but not significantly related to RUE in all three rice varieties. PNUE increased by 7.4–10.3 g g<sup>−1</sup> for each 10 MJ g<sup>−1</sup> increase in FIRNA. These results suggest that FIRNA can serve as an indicator for assessing PNUE in rice, which has implications for the phenotypic identification of rice varieties with high PNUE.https://www.mdpi.com/2073-4395/12/7/1603nitrogen use efficiencyradiation interceptionradiation use efficiencyrice |
| spellingShingle | Min Huang Jiana Chen Fangbo Cao The Fraction of Intercepted Radiation to Nitrogen Absorption as an Indicator for Assessing Physiological Nitrogen Use Efficiency in Rice Agronomy nitrogen use efficiency radiation interception radiation use efficiency rice |
| title | The Fraction of Intercepted Radiation to Nitrogen Absorption as an Indicator for Assessing Physiological Nitrogen Use Efficiency in Rice |
| title_full | The Fraction of Intercepted Radiation to Nitrogen Absorption as an Indicator for Assessing Physiological Nitrogen Use Efficiency in Rice |
| title_fullStr | The Fraction of Intercepted Radiation to Nitrogen Absorption as an Indicator for Assessing Physiological Nitrogen Use Efficiency in Rice |
| title_full_unstemmed | The Fraction of Intercepted Radiation to Nitrogen Absorption as an Indicator for Assessing Physiological Nitrogen Use Efficiency in Rice |
| title_short | The Fraction of Intercepted Radiation to Nitrogen Absorption as an Indicator for Assessing Physiological Nitrogen Use Efficiency in Rice |
| title_sort | fraction of intercepted radiation to nitrogen absorption as an indicator for assessing physiological nitrogen use efficiency in rice |
| topic | nitrogen use efficiency radiation interception radiation use efficiency rice |
| url | https://www.mdpi.com/2073-4395/12/7/1603 |
| work_keys_str_mv | AT minhuang thefractionofinterceptedradiationtonitrogenabsorptionasanindicatorforassessingphysiologicalnitrogenuseefficiencyinrice AT jianachen thefractionofinterceptedradiationtonitrogenabsorptionasanindicatorforassessingphysiologicalnitrogenuseefficiencyinrice AT fangbocao thefractionofinterceptedradiationtonitrogenabsorptionasanindicatorforassessingphysiologicalnitrogenuseefficiencyinrice AT minhuang fractionofinterceptedradiationtonitrogenabsorptionasanindicatorforassessingphysiologicalnitrogenuseefficiencyinrice AT jianachen fractionofinterceptedradiationtonitrogenabsorptionasanindicatorforassessingphysiologicalnitrogenuseefficiencyinrice AT fangbocao fractionofinterceptedradiationtonitrogenabsorptionasanindicatorforassessingphysiologicalnitrogenuseefficiencyinrice |