Research on the Genetic Improvement Effects of Lodging Resistance-Related Traits in Maize Core Germplasm
Lodging is a key factor affecting maize yield and harvestability. This study utilized Reid population baselines and their improved lines as female parents and No-Reid population baselines and their improved lines as male parents to form 48 incomplete diallel crosses. The genetic improvement effects,...
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MDPI AG
2024-12-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/15/1/17 |
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| author | Kaizhi Yang Jian Tan Qiyuan Zhang Tianhang Bai Shuna Zhou Junheng Hao Xinling Yu Zhenyuan Zang Dan Zhang |
| author_facet | Kaizhi Yang Jian Tan Qiyuan Zhang Tianhang Bai Shuna Zhou Junheng Hao Xinling Yu Zhenyuan Zang Dan Zhang |
| author_sort | Kaizhi Yang |
| collection | DOAJ |
| description | Lodging is a key factor affecting maize yield and harvestability. This study utilized Reid population baselines and their improved lines as female parents and No-Reid population baselines and their improved lines as male parents to form 48 incomplete diallel crosses. The genetic improvement effects, combining ability, and heterosis of three lodging resistance-related traits (stem tension, puncture strength, and crushing strength at the third internode) were analyzed. Regarding genetic improvement, the results indicated that all three traits were significantly improved in the improved lines compared to the baselines, with improvements increasing in each round. Combining ability analysis showed positive general combining ability (GCA) effects for the improved lines J133A, JM25, JM115, and JM1895 in all three traits, with higher GCA values than the baselines and first-round improved lines. Heterosis analysis revealed the highest advantages for the combinations J133A × JM115 (stem tension), JM25 × JM115 (crushing strength), and J133A × J1865 (puncture strength). These findings suggest that the improved female lines J133A and JM25, along with male lines JM115 and JM1895, not only possess strong lodging resistance but also exhibit high yield potential in the cross J133A × JM115, offering new materials and varieties for maize mechanization. |
| format | Article |
| id | doaj-art-549c128965534820815286d4d1778509 |
| institution | Kabale University |
| issn | 2073-4395 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj-art-549c128965534820815286d4d17785092025-01-24T13:16:22ZengMDPI AGAgronomy2073-43952024-12-011511710.3390/agronomy15010017Research on the Genetic Improvement Effects of Lodging Resistance-Related Traits in Maize Core GermplasmKaizhi Yang0Jian Tan1Qiyuan Zhang2Tianhang Bai3Shuna Zhou4Junheng Hao5Xinling Yu6Zhenyuan Zang7Dan Zhang8College of Agriculture, Tarim University, Alar 843300, ChinaCollege of Agronomy, Jilin Agricultural University, Changchun 130118, ChinaCollege of Agronomy, Jilin Agricultural University, Changchun 130118, ChinaCollege of Agronomy, Jilin Agricultural University, Changchun 130118, ChinaCollege of Agronomy, Jilin Agricultural University, Changchun 130118, ChinaCollege of Agronomy, Jilin Agricultural University, Changchun 130118, ChinaCollege of Agronomy, Jilin Agricultural University, Changchun 130118, ChinaCollege of Agronomy, Jilin Agricultural University, Changchun 130118, ChinaCollege of Agriculture, Tarim University, Alar 843300, ChinaLodging is a key factor affecting maize yield and harvestability. This study utilized Reid population baselines and their improved lines as female parents and No-Reid population baselines and their improved lines as male parents to form 48 incomplete diallel crosses. The genetic improvement effects, combining ability, and heterosis of three lodging resistance-related traits (stem tension, puncture strength, and crushing strength at the third internode) were analyzed. Regarding genetic improvement, the results indicated that all three traits were significantly improved in the improved lines compared to the baselines, with improvements increasing in each round. Combining ability analysis showed positive general combining ability (GCA) effects for the improved lines J133A, JM25, JM115, and JM1895 in all three traits, with higher GCA values than the baselines and first-round improved lines. Heterosis analysis revealed the highest advantages for the combinations J133A × JM115 (stem tension), JM25 × JM115 (crushing strength), and J133A × J1865 (puncture strength). These findings suggest that the improved female lines J133A and JM25, along with male lines JM115 and JM1895, not only possess strong lodging resistance but also exhibit high yield potential in the cross J133A × JM115, offering new materials and varieties for maize mechanization.https://www.mdpi.com/2073-4395/15/1/17corngroup improvementlodging resistancegenetic gainheterosis |
| spellingShingle | Kaizhi Yang Jian Tan Qiyuan Zhang Tianhang Bai Shuna Zhou Junheng Hao Xinling Yu Zhenyuan Zang Dan Zhang Research on the Genetic Improvement Effects of Lodging Resistance-Related Traits in Maize Core Germplasm Agronomy corn group improvement lodging resistance genetic gain heterosis |
| title | Research on the Genetic Improvement Effects of Lodging Resistance-Related Traits in Maize Core Germplasm |
| title_full | Research on the Genetic Improvement Effects of Lodging Resistance-Related Traits in Maize Core Germplasm |
| title_fullStr | Research on the Genetic Improvement Effects of Lodging Resistance-Related Traits in Maize Core Germplasm |
| title_full_unstemmed | Research on the Genetic Improvement Effects of Lodging Resistance-Related Traits in Maize Core Germplasm |
| title_short | Research on the Genetic Improvement Effects of Lodging Resistance-Related Traits in Maize Core Germplasm |
| title_sort | research on the genetic improvement effects of lodging resistance related traits in maize core germplasm |
| topic | corn group improvement lodging resistance genetic gain heterosis |
| url | https://www.mdpi.com/2073-4395/15/1/17 |
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