Impacts of Fertilization Regimes on Yield and Grain Quality in Diverse Rice Genotypes Under Cold Temperate Conditions
The purpose of this research is to clarify the genetic groups associated with high-quality germplasms with different genotypes and investigate the responses of their yield and quality traits to varied fertilization regimes, thereby providing references for premium breeding and cultivation practices....
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MDPI AG
2025-06-01
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| author | Guo-Hua Ding Bao-Jia Han Kai Liu Jin-Song Zhou Liang-Zi Cao Lei Lei Liang-Ming Bai Guang Yang Yu Luo Man-Li Wang Wen-Xiu Hou Yan-Song Ma Yang Ren Yan-Jiang Feng Shi-Chen Sun |
| author_facet | Guo-Hua Ding Bao-Jia Han Kai Liu Jin-Song Zhou Liang-Zi Cao Lei Lei Liang-Ming Bai Guang Yang Yu Luo Man-Li Wang Wen-Xiu Hou Yan-Song Ma Yang Ren Yan-Jiang Feng Shi-Chen Sun |
| author_sort | Guo-Hua Ding |
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| description | The purpose of this research is to clarify the genetic groups associated with high-quality germplasms with different genotypes and investigate the responses of their yield and quality traits to varied fertilization regimes, thereby providing references for premium breeding and cultivation practices. A total of 29 samples, including 15 newly developed lines and 14 elite cultivars, were analyzed as to their genetic structure. A split-plot field experiment was conducted to evaluate the responses of yield, quality, and agronomic traits to different fertilization treatments. The 29 samples were classified into three genetic groups. Line 1, developed by our team, formed a unique group, while Lines 3 and 8 constituted another distinct group. In the 2022 trial, the protein content ranged from 6.8% to 9.0%, amylose content from 17.9% to 20.1%, and taste value from 73.8 to 85.7. The top five samples in yield were Line 4, Line 2, Line 5, Line 6, and Line 1, with significant differences among them (<i>p</i> < 0.05) and markedly higher yields compared to other samples. For taste value, Longdao 17029, Line 2, Line 4, Line 5, and Line 6 ranked highest, with Longdao 17029 exhibiting significantly superior taste scores (<i>p</i> < 0.05). Fertilizer treatments ranked by yield were as follows: Treatment 1 (N<sub>120</sub>P<sub>100</sub>K<sub>100</sub>) > Treatment 4 (Longfutianxia slow-release fertilizer) > Treatment 2 (N<sub>96</sub>P<sub>100</sub>K<sub>100</sub> + bio-organic fertilizer) > Treatment 3 (N<sub>0</sub>P<sub>0</sub>K<sub>0</sub>), with significant differences (<i>p</i> < 0.05). Treatment 2 achieved a significantly higher taste value than the others (<i>p</i> < 0.05). In the 2023 trial, Longdao 17029 demonstrated higher leaf color index and net photosynthetic rate during the grain-filling stage, compared to Longdao 18 and Longdao 21. Lines 1, 3, and 8 are valuable for broadening the genetic diversity of rice in cold regions. Line 4 and Longdao 17029 show potential as novel germplasms for improving yield and taste quality. Moderate nitrogen reduction, combined with bio-organic fertilizer application, enhances rice taste value. |
| format | Article |
| id | doaj-art-6c3d3cc21dd1430897d7740a7f01cb2f |
| institution | Kabale University |
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| language | English |
| publishDate | 2025-06-01 |
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| series | Agriculture |
| spelling | doaj-art-6c3d3cc21dd1430897d7740a7f01cb2f2025-08-20T03:30:28ZengMDPI AGAgriculture2077-04722025-06-011512130310.3390/agriculture15121303Impacts of Fertilization Regimes on Yield and Grain Quality in Diverse Rice Genotypes Under Cold Temperate ConditionsGuo-Hua Ding0Bao-Jia Han1Kai Liu2Jin-Song Zhou3Liang-Zi Cao4Lei Lei5Liang-Ming Bai6Guang Yang7Yu Luo8Man-Li Wang9Wen-Xiu Hou10Yan-Song Ma11Yang Ren12Yan-Jiang Feng13Shi-Chen Sun14Institute of Crop Cultivation and Tillage, Heilongjiang Academy of Agricultural Sciences/Heilongjiang Engineering Technology Research Center of Rice Quality Improvement and Genetic Breeding/Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture, Harbin 150086, ChinaCollege of Agriculture, Northeast Agricultural University, Harbin 150030, ChinaInstitute of Crop Cultivation and Tillage, Heilongjiang Academy of Agricultural Sciences/Heilongjiang Engineering Technology Research Center of Rice Quality Improvement and Genetic Breeding/Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture, Harbin 150086, ChinaInstitute of Crop Cultivation and Tillage, Heilongjiang Academy of Agricultural Sciences/Heilongjiang Engineering Technology Research Center of Rice Quality Improvement and Genetic Breeding/Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture, Harbin 150086, ChinaInstitute of Crop Cultivation and Tillage, Heilongjiang Academy of Agricultural Sciences/Heilongjiang Engineering Technology Research Center of Rice Quality Improvement and Genetic Breeding/Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture, Harbin 150086, ChinaInstitute of Crop Cultivation and Tillage, Heilongjiang Academy of Agricultural Sciences/Heilongjiang Engineering Technology Research Center of Rice Quality Improvement and Genetic Breeding/Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture, Harbin 150086, ChinaInstitute of Crop Cultivation and Tillage, Heilongjiang Academy of Agricultural Sciences/Heilongjiang Engineering Technology Research Center of Rice Quality Improvement and Genetic Breeding/Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture, Harbin 150086, ChinaInstitute of Crop Cultivation and Tillage, Heilongjiang Academy of Agricultural Sciences/Heilongjiang Engineering Technology Research Center of Rice Quality Improvement and Genetic Breeding/Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture, Harbin 150086, ChinaInstitute of Crop Cultivation and Tillage, Heilongjiang Academy of Agricultural Sciences/Heilongjiang Engineering Technology Research Center of Rice Quality Improvement and Genetic Breeding/Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture, Harbin 150086, ChinaInstitute of Crop Cultivation and Tillage, Heilongjiang Academy of Agricultural Sciences/Heilongjiang Engineering Technology Research Center of Rice Quality Improvement and Genetic Breeding/Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture, Harbin 150086, ChinaBeidahuang Kenfeng Seed Co., Ltd., Harbin 150030, ChinaBeidahuang Kenfeng Seed Co., Ltd., Harbin 150030, ChinaInstitute of Crop Cultivation and Tillage, Heilongjiang Academy of Agricultural Sciences/Heilongjiang Engineering Technology Research Center of Rice Quality Improvement and Genetic Breeding/Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture, Harbin 150086, ChinaRice Research Institute of Heilongjiang Academy of Agricultural Sciences, Jiamusi 154026, ChinaInstitute of Crop Cultivation and Tillage, Heilongjiang Academy of Agricultural Sciences/Heilongjiang Engineering Technology Research Center of Rice Quality Improvement and Genetic Breeding/Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture, Harbin 150086, ChinaThe purpose of this research is to clarify the genetic groups associated with high-quality germplasms with different genotypes and investigate the responses of their yield and quality traits to varied fertilization regimes, thereby providing references for premium breeding and cultivation practices. A total of 29 samples, including 15 newly developed lines and 14 elite cultivars, were analyzed as to their genetic structure. A split-plot field experiment was conducted to evaluate the responses of yield, quality, and agronomic traits to different fertilization treatments. The 29 samples were classified into three genetic groups. Line 1, developed by our team, formed a unique group, while Lines 3 and 8 constituted another distinct group. In the 2022 trial, the protein content ranged from 6.8% to 9.0%, amylose content from 17.9% to 20.1%, and taste value from 73.8 to 85.7. The top five samples in yield were Line 4, Line 2, Line 5, Line 6, and Line 1, with significant differences among them (<i>p</i> < 0.05) and markedly higher yields compared to other samples. For taste value, Longdao 17029, Line 2, Line 4, Line 5, and Line 6 ranked highest, with Longdao 17029 exhibiting significantly superior taste scores (<i>p</i> < 0.05). Fertilizer treatments ranked by yield were as follows: Treatment 1 (N<sub>120</sub>P<sub>100</sub>K<sub>100</sub>) > Treatment 4 (Longfutianxia slow-release fertilizer) > Treatment 2 (N<sub>96</sub>P<sub>100</sub>K<sub>100</sub> + bio-organic fertilizer) > Treatment 3 (N<sub>0</sub>P<sub>0</sub>K<sub>0</sub>), with significant differences (<i>p</i> < 0.05). Treatment 2 achieved a significantly higher taste value than the others (<i>p</i> < 0.05). In the 2023 trial, Longdao 17029 demonstrated higher leaf color index and net photosynthetic rate during the grain-filling stage, compared to Longdao 18 and Longdao 21. Lines 1, 3, and 8 are valuable for broadening the genetic diversity of rice in cold regions. Line 4 and Longdao 17029 show potential as novel germplasms for improving yield and taste quality. Moderate nitrogen reduction, combined with bio-organic fertilizer application, enhances rice taste value.https://www.mdpi.com/2077-0472/15/12/1303cold region ricegenetic structurefertilizeryieldquality |
| spellingShingle | Guo-Hua Ding Bao-Jia Han Kai Liu Jin-Song Zhou Liang-Zi Cao Lei Lei Liang-Ming Bai Guang Yang Yu Luo Man-Li Wang Wen-Xiu Hou Yan-Song Ma Yang Ren Yan-Jiang Feng Shi-Chen Sun Impacts of Fertilization Regimes on Yield and Grain Quality in Diverse Rice Genotypes Under Cold Temperate Conditions Agriculture cold region rice genetic structure fertilizer yield quality |
| title | Impacts of Fertilization Regimes on Yield and Grain Quality in Diverse Rice Genotypes Under Cold Temperate Conditions |
| title_full | Impacts of Fertilization Regimes on Yield and Grain Quality in Diverse Rice Genotypes Under Cold Temperate Conditions |
| title_fullStr | Impacts of Fertilization Regimes on Yield and Grain Quality in Diverse Rice Genotypes Under Cold Temperate Conditions |
| title_full_unstemmed | Impacts of Fertilization Regimes on Yield and Grain Quality in Diverse Rice Genotypes Under Cold Temperate Conditions |
| title_short | Impacts of Fertilization Regimes on Yield and Grain Quality in Diverse Rice Genotypes Under Cold Temperate Conditions |
| title_sort | impacts of fertilization regimes on yield and grain quality in diverse rice genotypes under cold temperate conditions |
| topic | cold region rice genetic structure fertilizer yield quality |
| url | https://www.mdpi.com/2077-0472/15/12/1303 |
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