Response of Grain Yield and Water Use Efficiency to Irrigation Regimes during Mid-Season <i>indica</i> Rice Genotype Improvement
Understanding the performance of rice (<i>Oryza sativa</i> L.) agronomic traits and efficiency in water usage as well as grain yield under various irrigation regimes is crucial to achieving high resource use efficiency and high yield. In this study, 12 mid-season <i>indica</i>...
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MDPI AG
2022-10-01
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| Series: | Agriculture |
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| Online Access: | https://www.mdpi.com/2077-0472/12/10/1647 |
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| author | Wenjiang Jing Hao Wu Hanzhu Gu Zhilin Xiao Weilu Wang Weiyang Zhang Junfei Gu Lijun Liu Zhiqin Wang Jianhua Zhang Jianchang Yang Hao Zhang |
| author_facet | Wenjiang Jing Hao Wu Hanzhu Gu Zhilin Xiao Weilu Wang Weiyang Zhang Junfei Gu Lijun Liu Zhiqin Wang Jianhua Zhang Jianchang Yang Hao Zhang |
| author_sort | Wenjiang Jing |
| collection | DOAJ |
| description | Understanding the performance of rice (<i>Oryza sativa</i> L.) agronomic traits and efficiency in water usage as well as grain yield under various irrigation regimes is crucial to achieving high resource use efficiency and high yield. In this study, 12 mid-season <i>indica</i> rice genotypes that have been grown in the lower reaches of the Yangtze River for the past 80 years were studied in a field experiment for two years under two irrigation regimes, i.e., conventional irrigation (CI) and alternate wetting and drying irrigation (AWD). The results showed that with genotype improvement in irrigation regimes, the total number of spikelets, shoot and root dry weight, root oxidation activity, total leaf area index (LAI), effective LAI, leaf photosynthetic rate, and abscisic acid contents and zeatin + zeatin riboside contents in root bleeding sap were significantly increased at main growth stages. AWD irrigation synchronously increased rice resource use efficiency (water use efficiency (WUE), radiation use efficiency (RUE), and temperature use efficiency (TUE)) and grain yield. Compared to CI, AWD more significantly enhanced the performances of rice genotypes in all studied traits. Based on our findings, a semi-dwarf hybrid rice genotype has great potential for high resource use efficiency and high yield under alternate wetting and drying irrigation, which was attributed to the improved agronomic characteristics and superior root traits. |
| first_indexed | 2024-03-09T20:55:38Z |
| format | Article |
| id | doaj.art-97627d5dd91343fd9e4c8eef7b5e153c |
| institution | Directory Open Access Journal |
| issn | 2077-0472 |
| language | English |
| last_indexed | 2024-03-09T20:55:38Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agriculture |
| spelling | doaj.art-97627d5dd91343fd9e4c8eef7b5e153c2023-11-23T22:21:49ZengMDPI AGAgriculture2077-04722022-10-011210164710.3390/agriculture12101647Response of Grain Yield and Water Use Efficiency to Irrigation Regimes during Mid-Season <i>indica</i> Rice Genotype ImprovementWenjiang Jing0Hao Wu1Hanzhu Gu2Zhilin Xiao3Weilu Wang4Weiyang Zhang5Junfei Gu6Lijun Liu7Zhiqin Wang8Jianhua Zhang9Jianchang Yang10Hao Zhang11Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, ChinaJiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, ChinaJiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, ChinaJiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, ChinaJiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, ChinaJiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, ChinaJiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, ChinaJiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, ChinaJiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, ChinaState Key Laboratory of Agrobiotechnology, School of Life Sciences, The Chinese University of Hong Kong, Shatin 999077, ChinaJiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, ChinaJiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, ChinaUnderstanding the performance of rice (<i>Oryza sativa</i> L.) agronomic traits and efficiency in water usage as well as grain yield under various irrigation regimes is crucial to achieving high resource use efficiency and high yield. In this study, 12 mid-season <i>indica</i> rice genotypes that have been grown in the lower reaches of the Yangtze River for the past 80 years were studied in a field experiment for two years under two irrigation regimes, i.e., conventional irrigation (CI) and alternate wetting and drying irrigation (AWD). The results showed that with genotype improvement in irrigation regimes, the total number of spikelets, shoot and root dry weight, root oxidation activity, total leaf area index (LAI), effective LAI, leaf photosynthetic rate, and abscisic acid contents and zeatin + zeatin riboside contents in root bleeding sap were significantly increased at main growth stages. AWD irrigation synchronously increased rice resource use efficiency (water use efficiency (WUE), radiation use efficiency (RUE), and temperature use efficiency (TUE)) and grain yield. Compared to CI, AWD more significantly enhanced the performances of rice genotypes in all studied traits. Based on our findings, a semi-dwarf hybrid rice genotype has great potential for high resource use efficiency and high yield under alternate wetting and drying irrigation, which was attributed to the improved agronomic characteristics and superior root traits.https://www.mdpi.com/2077-0472/12/10/1647riceirrigation regimegrain yieldwater use efficiency |
| spellingShingle | Wenjiang Jing Hao Wu Hanzhu Gu Zhilin Xiao Weilu Wang Weiyang Zhang Junfei Gu Lijun Liu Zhiqin Wang Jianhua Zhang Jianchang Yang Hao Zhang Response of Grain Yield and Water Use Efficiency to Irrigation Regimes during Mid-Season <i>indica</i> Rice Genotype Improvement Agriculture rice irrigation regime grain yield water use efficiency |
| title | Response of Grain Yield and Water Use Efficiency to Irrigation Regimes during Mid-Season <i>indica</i> Rice Genotype Improvement |
| title_full | Response of Grain Yield and Water Use Efficiency to Irrigation Regimes during Mid-Season <i>indica</i> Rice Genotype Improvement |
| title_fullStr | Response of Grain Yield and Water Use Efficiency to Irrigation Regimes during Mid-Season <i>indica</i> Rice Genotype Improvement |
| title_full_unstemmed | Response of Grain Yield and Water Use Efficiency to Irrigation Regimes during Mid-Season <i>indica</i> Rice Genotype Improvement |
| title_short | Response of Grain Yield and Water Use Efficiency to Irrigation Regimes during Mid-Season <i>indica</i> Rice Genotype Improvement |
| title_sort | response of grain yield and water use efficiency to irrigation regimes during mid season i indica i rice genotype improvement |
| topic | rice irrigation regime grain yield water use efficiency |
| url | https://www.mdpi.com/2077-0472/12/10/1647 |
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