dep1 improves rice grain yield and nitrogen use efficiency simultaneously by enhancing nitrogen and dry matter translocation
The rice cultivars carrying dep1 (denseanderectpanicle1) have the potential to achieve both high grain yield and high nitrogen use efficiency (NUE). However, few studies have focused on the agronomic and physiological performance of those cultivars associated with high yield and high NUE under field...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-01-01
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| Series: | Journal of Integrative Agriculture |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095311922000661 |
| _version_ | 1811196939128012800 |
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| author | Li-ying HUANG Xiao-xiao LI Yun-bo ZHANG Shah FAHAD Fei WANG |
| author_facet | Li-ying HUANG Xiao-xiao LI Yun-bo ZHANG Shah FAHAD Fei WANG |
| author_sort | Li-ying HUANG |
| collection | DOAJ |
| description | The rice cultivars carrying dep1 (denseanderectpanicle1) have the potential to achieve both high grain yield and high nitrogen use efficiency (NUE). However, few studies have focused on the agronomic and physiological performance of those cultivars associated with high yield and high NUE under field conditions. Therefore, we evaluated the yield performance and NUE of two near-isogenic lines (NILs) carrying DEP1 (NIL-DEP1) and dep1-1 (NIL-dep1) genes under the Nanjing 6 background at 0 and 120 kg N ha−1. Grain yield and NUE for grain production (NUEg) were 25.5 and 21.9% higher in NIL-dep1 compared to NIL-DEP1 averaged across N treatments and planting years, respectively. The yield advantage of NIL-dep1 over NIL-DEP1 was mainly due to larger sink size (i.e., higher total spikelet number), grain-filling percentage, total dry matter production, and harvest index. N utilization rather than N uptake contributed to the high yield of NIL-dep1. Significantly higher NUEg in NIL-dep1 was associated with higher N and dry matter translocation efficiency, lower leaf and stem N concentration at maturity, and higher glutamine synthetase (GS) activity in leaves. In conclusion, dep1 improved grain yield and NUE by increasing N and dry matter transport due to higher leaf GS activity under field conditions during the grain-filling period. |
| first_indexed | 2024-04-12T01:07:12Z |
| format | Article |
| id | doaj.art-dd2e034730c94aa58db15267c5c6d2ef |
| institution | Directory Open Access Journal |
| issn | 2095-3119 |
| language | English |
| last_indexed | 2024-04-12T01:07:12Z |
| publishDate | 2022-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Integrative Agriculture |
| spelling | doaj.art-dd2e034730c94aa58db15267c5c6d2ef2022-12-22T03:54:13ZengElsevierJournal of Integrative Agriculture2095-31192022-01-01211131853198dep1 improves rice grain yield and nitrogen use efficiency simultaneously by enhancing nitrogen and dry matter translocationLi-ying HUANG0Xiao-xiao LI1Yun-bo ZHANG2Shah FAHAD3Fei WANG4Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou 434025, P.R.China; College of Agriculture, Yangtze University, Jingzhou 434025, P.R.ChinaNational Key Laboratory of Crop Genetic Improvement, MARAKey Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, P.R.ChinaCollege of Agriculture, Yangtze University, Jingzhou 434025, P.R.China; Hubei Collaborative Innovation Center for Grain Industry, Yangtze University, Jingzhou 434025, P.R.ChinaDepartment of Agronomy, The University of Haripur, Haripur 22620, PakistanNational Key Laboratory of Crop Genetic Improvement, MARAKey Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, P.R.China; Hubei Collaborative Innovation Center for Grain Industry, Yangtze University, Jingzhou 434025, P.R.China; Correspondence WANG Fei, Tel: +86-27-87284385The rice cultivars carrying dep1 (denseanderectpanicle1) have the potential to achieve both high grain yield and high nitrogen use efficiency (NUE). However, few studies have focused on the agronomic and physiological performance of those cultivars associated with high yield and high NUE under field conditions. Therefore, we evaluated the yield performance and NUE of two near-isogenic lines (NILs) carrying DEP1 (NIL-DEP1) and dep1-1 (NIL-dep1) genes under the Nanjing 6 background at 0 and 120 kg N ha−1. Grain yield and NUE for grain production (NUEg) were 25.5 and 21.9% higher in NIL-dep1 compared to NIL-DEP1 averaged across N treatments and planting years, respectively. The yield advantage of NIL-dep1 over NIL-DEP1 was mainly due to larger sink size (i.e., higher total spikelet number), grain-filling percentage, total dry matter production, and harvest index. N utilization rather than N uptake contributed to the high yield of NIL-dep1. Significantly higher NUEg in NIL-dep1 was associated with higher N and dry matter translocation efficiency, lower leaf and stem N concentration at maturity, and higher glutamine synthetase (GS) activity in leaves. In conclusion, dep1 improved grain yield and NUE by increasing N and dry matter transport due to higher leaf GS activity under field conditions during the grain-filling period.http://www.sciencedirect.com/science/article/pii/S2095311922000661dep1grain yieldnitrogen use efficiencynitrogen translocationrice |
| spellingShingle | Li-ying HUANG Xiao-xiao LI Yun-bo ZHANG Shah FAHAD Fei WANG dep1 improves rice grain yield and nitrogen use efficiency simultaneously by enhancing nitrogen and dry matter translocation Journal of Integrative Agriculture dep1 grain yield nitrogen use efficiency nitrogen translocation rice |
| title | dep1 improves rice grain yield and nitrogen use efficiency simultaneously by enhancing nitrogen and dry matter translocation |
| title_full | dep1 improves rice grain yield and nitrogen use efficiency simultaneously by enhancing nitrogen and dry matter translocation |
| title_fullStr | dep1 improves rice grain yield and nitrogen use efficiency simultaneously by enhancing nitrogen and dry matter translocation |
| title_full_unstemmed | dep1 improves rice grain yield and nitrogen use efficiency simultaneously by enhancing nitrogen and dry matter translocation |
| title_short | dep1 improves rice grain yield and nitrogen use efficiency simultaneously by enhancing nitrogen and dry matter translocation |
| title_sort | dep1 improves rice grain yield and nitrogen use efficiency simultaneously by enhancing nitrogen and dry matter translocation |
| topic | dep1 grain yield nitrogen use efficiency nitrogen translocation rice |
| url | http://www.sciencedirect.com/science/article/pii/S2095311922000661 |
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