Developing perennial upland rice. II: Field performance of S1 families from an intermated Oryza sativa/O. longistaminata population
In Southeast Asia, upland rice (Oryza sativa L.) is an annual crop that is typically cultivated on hilly sites, contributing to the erosion of soil and the degradation of watersheds. We wish to develop a perennial upland rice that would help conserve natural resources via a permanent ground cover, w...
| Autores principales: | , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Wiley
2003
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/166910 |
| _version_ | 1855519108044423168 |
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| author | Sacks, Erik J. Roxas, Jose P. Cruz, Maria Teresa Sta. |
| author_browse | Cruz, Maria Teresa Sta. Roxas, Jose P. Sacks, Erik J. |
| author_facet | Sacks, Erik J. Roxas, Jose P. Cruz, Maria Teresa Sta. |
| author_sort | Sacks, Erik J. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | In Southeast Asia, upland rice (Oryza sativa L.) is an annual crop that is typically cultivated on hilly sites, contributing to the erosion of soil and the degradation of watersheds. We wish to develop a perennial upland rice that would help conserve natural resources via a permanent ground cover, while providing subsistence farmers with a valued food. Oryza longistaminata A. Chev. et Roehr. is a highly perennial, rhizomatous relative of O. sativa that may be a useful source of genes for developing perennial upland rice. This study was conducted to evaluate the potential of an O. sativa/O. longistaminata intermated population for developing perennial upland rice. As a baseline for comparison, none of the cultivar controls survived 1 yr. Among 94 S1 families, 1‐yr survival ranged from 0 to 63.6% but only six families had more than 30% survival. On the basis of observations at the soil surface, less than 1% of the progeny plants produced rhizomes. However, three families produced approximately 25% rhizomatous individuals, suggesting the presence of a single locus with large effect. Interspecific crossing barriers led to low S1 yields, with many plants being completely sterile. The low fertility and limited perenniality observed may make further breeding progress with this population difficult. |
| format | Journal Article |
| id | CGSpace166910 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2003 |
| publishDateRange | 2003 |
| publishDateSort | 2003 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace1669102024-12-22T05:44:47Z Developing perennial upland rice. II: Field performance of S1 families from an intermated Oryza sativa/O. longistaminata population Sacks, Erik J. Roxas, Jose P. Cruz, Maria Teresa Sta. perennials upland rice field tests oryza longistaminata progeny interspecific hybridization irrigation cutting height In Southeast Asia, upland rice (Oryza sativa L.) is an annual crop that is typically cultivated on hilly sites, contributing to the erosion of soil and the degradation of watersheds. We wish to develop a perennial upland rice that would help conserve natural resources via a permanent ground cover, while providing subsistence farmers with a valued food. Oryza longistaminata A. Chev. et Roehr. is a highly perennial, rhizomatous relative of O. sativa that may be a useful source of genes for developing perennial upland rice. This study was conducted to evaluate the potential of an O. sativa/O. longistaminata intermated population for developing perennial upland rice. As a baseline for comparison, none of the cultivar controls survived 1 yr. Among 94 S1 families, 1‐yr survival ranged from 0 to 63.6% but only six families had more than 30% survival. On the basis of observations at the soil surface, less than 1% of the progeny plants produced rhizomes. However, three families produced approximately 25% rhizomatous individuals, suggesting the presence of a single locus with large effect. Interspecific crossing barriers led to low S1 yields, with many plants being completely sterile. The low fertility and limited perenniality observed may make further breeding progress with this population difficult. 2003-01 2024-12-19T12:56:48Z 2024-12-19T12:56:48Z Journal Article https://hdl.handle.net/10568/166910 en Wiley Sacks, Erik J.; Roxas, Jose P. and Cruz, Maria Teresa Sta. 2003. Developing perennial upland rice. II: Field performance of S1 families from an intermated Oryza sativa/O. longistaminata population. Crop Science, Volume 43 no. 1 p. 129-134 |
| spellingShingle | perennials upland rice field tests oryza longistaminata progeny interspecific hybridization irrigation cutting height Sacks, Erik J. Roxas, Jose P. Cruz, Maria Teresa Sta. Developing perennial upland rice. II: Field performance of S1 families from an intermated Oryza sativa/O. longistaminata population |
| title | Developing perennial upland rice. II: Field performance of S1 families from an intermated Oryza sativa/O. longistaminata population |
| title_full | Developing perennial upland rice. II: Field performance of S1 families from an intermated Oryza sativa/O. longistaminata population |
| title_fullStr | Developing perennial upland rice. II: Field performance of S1 families from an intermated Oryza sativa/O. longistaminata population |
| title_full_unstemmed | Developing perennial upland rice. II: Field performance of S1 families from an intermated Oryza sativa/O. longistaminata population |
| title_short | Developing perennial upland rice. II: Field performance of S1 families from an intermated Oryza sativa/O. longistaminata population |
| title_sort | developing perennial upland rice ii field performance of s1 families from an intermated oryza sativa o longistaminata population |
| topic | perennials upland rice field tests oryza longistaminata progeny interspecific hybridization irrigation cutting height |
| url | https://hdl.handle.net/10568/166910 |
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