Characterization and Comprehensive Evaluation of Phenotypic and Yield Traits in Salt-Stress-Tolerant Peanut Germplasm for Conservation and Breeding
Salt stress is a limiting factor affecting the growth, development, and yield of peanuts. Breeding improvement is a possible solution to overcome salt stress. The salt tolerance of 57 peanut cultivars in Northeast China was identified using indoor simulation at the germination stage, the seedling st...
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| Format: | Article |
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MDPI AG
2024-02-01
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| Series: | Horticulturae |
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| Online Access: | https://www.mdpi.com/2311-7524/10/2/147 |
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| author | Nan Zhang He Zhang Jingyao Ren Baiyi Bai Pei Guo Zhenghao Lv Shuli Kang Xinhua Zhao Haiqiu Yu Tianhong Zhao |
| author_facet | Nan Zhang He Zhang Jingyao Ren Baiyi Bai Pei Guo Zhenghao Lv Shuli Kang Xinhua Zhao Haiqiu Yu Tianhong Zhao |
| author_sort | Nan Zhang |
| collection | DOAJ |
| description | Salt stress is a limiting factor affecting the growth, development, and yield of peanuts. Breeding improvement is a possible solution to overcome salt stress. The salt tolerance of 57 peanut cultivars in Northeast China was identified using indoor simulation at the germination stage, the seedling stage, and field natural identification. At the germination stage, 75 mM NaCl was the most suitable screening concentration, and the seed vitality index of 57 cultivars was analyzed using the membership function and cluster analysis. Among these cultivars, 11 were identified as salt-tolerant and 19 were salt-sensitive during germination. In the seedling stage, six salt tolerance coefficients (STCs) showed significant correlation. A gray relational analysis was used in combination with evaluation grading, resulting in the identification of 14 salt-tolerant cultivars and 12 salt-sensitive cultivars. In the field screening, a comprehensive analysis was conducted using a principal component analysis of nine indices, including agronomic characteristics, yield characteristics, and SPAD. This analysis led to the determination of three comprehensive indices. The weighted membership function was used for comprehensive evaluation. Finally, three salt-tolerant cultivars and four salt-sensitive cultivars suitable for planting in Northeast China were screened out to provide an excellent germplasm for researching the salt-tolerant mechanism of peanuts. |
| first_indexed | 2024-03-07T22:31:12Z |
| format | Article |
| id | doaj.art-fd4df533b26d40e3aea0c4f5b76ca88e |
| institution | Directory Open Access Journal |
| issn | 2311-7524 |
| language | English |
| last_indexed | 2024-03-07T22:31:12Z |
| publishDate | 2024-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Horticulturae |
| spelling | doaj.art-fd4df533b26d40e3aea0c4f5b76ca88e2024-02-23T15:18:44ZengMDPI AGHorticulturae2311-75242024-02-0110214710.3390/horticulturae10020147Characterization and Comprehensive Evaluation of Phenotypic and Yield Traits in Salt-Stress-Tolerant Peanut Germplasm for Conservation and BreedingNan Zhang0He Zhang1Jingyao Ren2Baiyi Bai3Pei Guo4Zhenghao Lv5Shuli Kang6Xinhua Zhao7Haiqiu Yu8Tianhong Zhao9College of Agriculture, Shenyang Agricultural University, Shenyang 110161, ChinaCollege of Agriculture, Shenyang Agricultural University, Shenyang 110161, ChinaCollege of Agriculture, Shenyang Agricultural University, Shenyang 110161, ChinaSchool of Agriculture and Horticulture, Liaoning Agriculture Vocational and Technical College, Yingkou 115009, ChinaCollege of Agriculture, Shenyang Agricultural University, Shenyang 110161, ChinaCollege of Agriculture, Shenyang Agricultural University, Shenyang 110161, ChinaCollege of Agriculture, Shenyang Agricultural University, Shenyang 110161, ChinaCollege of Agriculture, Shenyang Agricultural University, Shenyang 110161, ChinaCollege of Agriculture, Shenyang Agricultural University, Shenyang 110161, ChinaCollege of Agriculture, Shenyang Agricultural University, Shenyang 110161, ChinaSalt stress is a limiting factor affecting the growth, development, and yield of peanuts. Breeding improvement is a possible solution to overcome salt stress. The salt tolerance of 57 peanut cultivars in Northeast China was identified using indoor simulation at the germination stage, the seedling stage, and field natural identification. At the germination stage, 75 mM NaCl was the most suitable screening concentration, and the seed vitality index of 57 cultivars was analyzed using the membership function and cluster analysis. Among these cultivars, 11 were identified as salt-tolerant and 19 were salt-sensitive during germination. In the seedling stage, six salt tolerance coefficients (STCs) showed significant correlation. A gray relational analysis was used in combination with evaluation grading, resulting in the identification of 14 salt-tolerant cultivars and 12 salt-sensitive cultivars. In the field screening, a comprehensive analysis was conducted using a principal component analysis of nine indices, including agronomic characteristics, yield characteristics, and SPAD. This analysis led to the determination of three comprehensive indices. The weighted membership function was used for comprehensive evaluation. Finally, three salt-tolerant cultivars and four salt-sensitive cultivars suitable for planting in Northeast China were screened out to provide an excellent germplasm for researching the salt-tolerant mechanism of peanuts.https://www.mdpi.com/2311-7524/10/2/147salt tolerance screeningcomprehensive evaluationwhole growth periodgenetic resources |
| spellingShingle | Nan Zhang He Zhang Jingyao Ren Baiyi Bai Pei Guo Zhenghao Lv Shuli Kang Xinhua Zhao Haiqiu Yu Tianhong Zhao Characterization and Comprehensive Evaluation of Phenotypic and Yield Traits in Salt-Stress-Tolerant Peanut Germplasm for Conservation and Breeding Horticulturae salt tolerance screening comprehensive evaluation whole growth period genetic resources |
| title | Characterization and Comprehensive Evaluation of Phenotypic and Yield Traits in Salt-Stress-Tolerant Peanut Germplasm for Conservation and Breeding |
| title_full | Characterization and Comprehensive Evaluation of Phenotypic and Yield Traits in Salt-Stress-Tolerant Peanut Germplasm for Conservation and Breeding |
| title_fullStr | Characterization and Comprehensive Evaluation of Phenotypic and Yield Traits in Salt-Stress-Tolerant Peanut Germplasm for Conservation and Breeding |
| title_full_unstemmed | Characterization and Comprehensive Evaluation of Phenotypic and Yield Traits in Salt-Stress-Tolerant Peanut Germplasm for Conservation and Breeding |
| title_short | Characterization and Comprehensive Evaluation of Phenotypic and Yield Traits in Salt-Stress-Tolerant Peanut Germplasm for Conservation and Breeding |
| title_sort | characterization and comprehensive evaluation of phenotypic and yield traits in salt stress tolerant peanut germplasm for conservation and breeding |
| topic | salt tolerance screening comprehensive evaluation whole growth period genetic resources |
| url | https://www.mdpi.com/2311-7524/10/2/147 |
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