Screening of Germplasm Resources with Low-Phosphorus Tolerance During the Seedling Stage of Rice
Rice is a globally important food crop, and phosphorus is an essential nutrient element for rice growth. In many of China’s arable lands, there is a deficiency in available phosphorus content. Therefore, screening and breeding rice germplasm resources that are tolerant to low phosphorus can enhance...
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2025-05-01
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| author | Mengru Zhang Ye Wang Zexin Qi Qiang Zhang Huan Wang Chenglong Guan Wenzheng Sun Fenglou Ling Zhian Zhang Chen Xu |
| author_facet | Mengru Zhang Ye Wang Zexin Qi Qiang Zhang Huan Wang Chenglong Guan Wenzheng Sun Fenglou Ling Zhian Zhang Chen Xu |
| author_sort | Mengru Zhang |
| collection | DOAJ |
| description | Rice is a globally important food crop, and phosphorus is an essential nutrient element for rice growth. In many of China’s arable lands, there is a deficiency in available phosphorus content. Therefore, screening and breeding rice germplasm resources that are tolerant to low phosphorus can enhance the growth capability of rice in low-phosphorus soils. This study set up treatments with two phosphorus concentrations: H<sub>2</sub>PO<sub>4</sub><sup>−</sup> at 0.18 mmol/L, referred to as normal phosphorus (NP), and H<sub>2</sub>PO<sub>4</sub><sup>−</sup> at 0.009 mmol/L, referred to as low phosphorus (LP). Using hydroponic methods, 156 different genotype rice germplasms were treated for 35 days, after which the morpho-physiological traits of the rice seedling shoots, root morphology, and material content were measured. An analysis of the coefficient of variation (CV) for low phosphorus tolerance coefficients across different rice germplasm resources revealed that 16 indicators had CVs greater than 10%, which can be used as criteria for screening rice varieties with low phosphorus tolerance at the seedling stage. The relevant indicators and low-phosphorus resistance characteristics of different rice varieties were comprehensively evaluated using principal component analysis, correlation analysis, membership function, and cluster analysis methods. The results indicate that the principal component analysis transformed 23 indicators into 5 comprehensive indicators, with a cumulative contribution rate of 86.947%. The <i>D</i> value was evaluated in a comprehensive evaluation of low-phosphorus resistance, and 156 rice germplasm resources were divided into four types by cluster analysis. A scatter plot was created using the comprehensive phosphorus efficiency values of different rice germplasms under normal phosphorus and low phosphorus conditions. Through further verification, the germplasms with strong low-phosphorus tolerance finally selected through comprehensive screening were Y3-14, Y3-35, Y3-21, Jinnongda 705, Changjing 625, and Jinnongda 873. The germplasms with poor low-phosphorus tolerance were Jijing 338, Jingu 981, Tong 35, Y3-31, and Longdao 20. |
| format | Article |
| id | doaj-art-a781d0b5ecc94bfb9414fe8e388e4f80 |
| institution | DOAJ |
| issn | 2223-7747 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
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| series | Plants |
| spelling | doaj-art-a781d0b5ecc94bfb9414fe8e388e4f802025-08-20T03:12:11ZengMDPI AGPlants2223-77472025-05-011410154310.3390/plants14101543Screening of Germplasm Resources with Low-Phosphorus Tolerance During the Seedling Stage of RiceMengru Zhang0Ye Wang1Zexin Qi2Qiang Zhang3Huan Wang4Chenglong Guan5Wenzheng Sun6Fenglou Ling7Zhian Zhang8Chen Xu9Agronomy College, Jilin Agricultural University, Changchun 130118, ChinaAgronomy College, Jilin Agricultural University, Changchun 130118, ChinaAgronomy College, Jilin Agricultural University, Changchun 130118, ChinaAgronomy College, Jilin Agricultural University, Changchun 130118, ChinaAgronomy College, Jilin Agricultural University, Changchun 130118, ChinaAgronomy College, Jilin Agricultural University, Changchun 130118, ChinaAgronomy College, Jilin Agricultural University, Changchun 130118, ChinaAgronomy College, Jilin Agricultural University, Changchun 130118, ChinaAgronomy College, Jilin Agricultural University, Changchun 130118, ChinaInstitute of Agricultural Resources and Environment, Jilin Academy of Agricultural Sciences, Changchun 130033, ChinaRice is a globally important food crop, and phosphorus is an essential nutrient element for rice growth. In many of China’s arable lands, there is a deficiency in available phosphorus content. Therefore, screening and breeding rice germplasm resources that are tolerant to low phosphorus can enhance the growth capability of rice in low-phosphorus soils. This study set up treatments with two phosphorus concentrations: H<sub>2</sub>PO<sub>4</sub><sup>−</sup> at 0.18 mmol/L, referred to as normal phosphorus (NP), and H<sub>2</sub>PO<sub>4</sub><sup>−</sup> at 0.009 mmol/L, referred to as low phosphorus (LP). Using hydroponic methods, 156 different genotype rice germplasms were treated for 35 days, after which the morpho-physiological traits of the rice seedling shoots, root morphology, and material content were measured. An analysis of the coefficient of variation (CV) for low phosphorus tolerance coefficients across different rice germplasm resources revealed that 16 indicators had CVs greater than 10%, which can be used as criteria for screening rice varieties with low phosphorus tolerance at the seedling stage. The relevant indicators and low-phosphorus resistance characteristics of different rice varieties were comprehensively evaluated using principal component analysis, correlation analysis, membership function, and cluster analysis methods. The results indicate that the principal component analysis transformed 23 indicators into 5 comprehensive indicators, with a cumulative contribution rate of 86.947%. The <i>D</i> value was evaluated in a comprehensive evaluation of low-phosphorus resistance, and 156 rice germplasm resources were divided into four types by cluster analysis. A scatter plot was created using the comprehensive phosphorus efficiency values of different rice germplasms under normal phosphorus and low phosphorus conditions. Through further verification, the germplasms with strong low-phosphorus tolerance finally selected through comprehensive screening were Y3-14, Y3-35, Y3-21, Jinnongda 705, Changjing 625, and Jinnongda 873. The germplasms with poor low-phosphorus tolerance were Jijing 338, Jingu 981, Tong 35, Y3-31, and Longdao 20.https://www.mdpi.com/2223-7747/14/10/1543ricescreening of low-phosphorus tolerant germplasmprincipal component analysiscluster analysis |
| spellingShingle | Mengru Zhang Ye Wang Zexin Qi Qiang Zhang Huan Wang Chenglong Guan Wenzheng Sun Fenglou Ling Zhian Zhang Chen Xu Screening of Germplasm Resources with Low-Phosphorus Tolerance During the Seedling Stage of Rice Plants rice screening of low-phosphorus tolerant germplasm principal component analysis cluster analysis |
| title | Screening of Germplasm Resources with Low-Phosphorus Tolerance During the Seedling Stage of Rice |
| title_full | Screening of Germplasm Resources with Low-Phosphorus Tolerance During the Seedling Stage of Rice |
| title_fullStr | Screening of Germplasm Resources with Low-Phosphorus Tolerance During the Seedling Stage of Rice |
| title_full_unstemmed | Screening of Germplasm Resources with Low-Phosphorus Tolerance During the Seedling Stage of Rice |
| title_short | Screening of Germplasm Resources with Low-Phosphorus Tolerance During the Seedling Stage of Rice |
| title_sort | screening of germplasm resources with low phosphorus tolerance during the seedling stage of rice |
| topic | rice screening of low-phosphorus tolerant germplasm principal component analysis cluster analysis |
| url | https://www.mdpi.com/2223-7747/14/10/1543 |
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