Heritability for yield and glycoalkaloid content in potato breeding under warm environments
High temperatures affect potato production in the tropics, putting tuber yield and quality at risk and leading to increased glycoalkaloid concentration the cause of the bitter taste in potatoes and a cause for concern for human health. The International Potato Center (CIP), has developed new heat to...
| Autores principales: | , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Walter de Gruyter GmbH
2017
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/90588 |
| _version_ | 1855520700279816192 |
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| author | Gastelo, M. Díaz, L. Burgos, G. Felde, T. zum Bonierbale, Merideth W. |
| author_browse | Bonierbale, Merideth W. Burgos, G. Díaz, L. Felde, T. zum Gastelo, M. |
| author_facet | Gastelo, M. Díaz, L. Burgos, G. Felde, T. zum Bonierbale, Merideth W. |
| author_sort | Gastelo, M. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | High temperatures affect potato production in the tropics, putting tuber yield and quality at risk and leading to increased glycoalkaloid concentration the cause of the bitter taste in potatoes and a cause for concern for human health. The International Potato Center (CIP), has developed new heat tolerant clones which are heat tolerant and also resistant to late blight. These clones offer an opportunity to evaluate yield and glycoalkaloid levels after growth under high temperature environments. We evaluated four sets of 16 full-sib families and 20 clones for tuber yield and glycoalkaloid content in order to estimate narrow-sense and broad-sense heritability respectively. We used a randomized complete block design replicated in three locations in Peru; San Ramon, La Molina and Majes At harvest, the number and weight of marketable and nonmarketable tubers were recorded. We analyzed samples of tubers from each clone for glycoalkaloid content using spectrophotometry. Narrow-sense heritability for tuber yield, tuber number and average tuber weight were 0.41, 0.50 and 0.83, respectively, indicating that further gains in breeding for heat tolerance will be possible. Broadsense heritability for glycoalkaloid content was 0.63 and correlation with tuber yield was weak, r=0.33 and R²=0.11 (P<0.01). High heritability and weak correlation will allow us to select clones with high tuber yield and low glycoalkaloid content, to serve as candidate varieties and parents in breeding programs. |
| format | Journal Article |
| id | CGSpace90588 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| publisher | Walter de Gruyter GmbH |
| publisherStr | Walter de Gruyter GmbH |
| record_format | dspace |
| spelling | CGSpace905882025-11-29T05:22:14Z Heritability for yield and glycoalkaloid content in potato breeding under warm environments Gastelo, M. Díaz, L. Burgos, G. Felde, T. zum Bonierbale, Merideth W. potatoes breeding glycoalkaloids heat High temperatures affect potato production in the tropics, putting tuber yield and quality at risk and leading to increased glycoalkaloid concentration the cause of the bitter taste in potatoes and a cause for concern for human health. The International Potato Center (CIP), has developed new heat tolerant clones which are heat tolerant and also resistant to late blight. These clones offer an opportunity to evaluate yield and glycoalkaloid levels after growth under high temperature environments. We evaluated four sets of 16 full-sib families and 20 clones for tuber yield and glycoalkaloid content in order to estimate narrow-sense and broad-sense heritability respectively. We used a randomized complete block design replicated in three locations in Peru; San Ramon, La Molina and Majes At harvest, the number and weight of marketable and nonmarketable tubers were recorded. We analyzed samples of tubers from each clone for glycoalkaloid content using spectrophotometry. Narrow-sense heritability for tuber yield, tuber number and average tuber weight were 0.41, 0.50 and 0.83, respectively, indicating that further gains in breeding for heat tolerance will be possible. Broadsense heritability for glycoalkaloid content was 0.63 and correlation with tuber yield was weak, r=0.33 and R²=0.11 (P<0.01). High heritability and weak correlation will allow us to select clones with high tuber yield and low glycoalkaloid content, to serve as candidate varieties and parents in breeding programs. 2017-11-01 2018-01-26T02:44:31Z 2018-01-26T02:44:31Z Journal Article https://hdl.handle.net/10568/90588 en Open Access Walter de Gruyter GmbH Gastelo, M.; Diaz, L.; Burgos, G.; Felde, T. zum.; Bonierbale, M.W. 2017. Heritability for Yield and Glycoalkaloid Content in Potato Breeding under Warm Environments. Open Agriculture. ISSN 2391-9531. 2(1): 561-570. |
| spellingShingle | potatoes breeding glycoalkaloids heat Gastelo, M. Díaz, L. Burgos, G. Felde, T. zum Bonierbale, Merideth W. Heritability for yield and glycoalkaloid content in potato breeding under warm environments |
| title | Heritability for yield and glycoalkaloid content in potato breeding under warm environments |
| title_full | Heritability for yield and glycoalkaloid content in potato breeding under warm environments |
| title_fullStr | Heritability for yield and glycoalkaloid content in potato breeding under warm environments |
| title_full_unstemmed | Heritability for yield and glycoalkaloid content in potato breeding under warm environments |
| title_short | Heritability for yield and glycoalkaloid content in potato breeding under warm environments |
| title_sort | heritability for yield and glycoalkaloid content in potato breeding under warm environments |
| topic | potatoes breeding glycoalkaloids heat |
| url | https://hdl.handle.net/10568/90588 |
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