Irrigation management risks and Zn fertilization needs in Zn biofortification breeding in lowland rice
As zinc (Zn) fertilizer and water management affect the expression of Zn-enriched grain traits in rice, we studied the effect of Zn fertilizer and water management on Zn uptake and grain yield of different biofortification breeding lines and the possible biases in selection for high grain Zn content...
| Autores principales: | , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Cambridge University Press
2018
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/165083 |
| _version_ | 1855515816547581952 |
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| author | Rubianes, F.H.C. Swamy, B.P. Mallikarjuna Johnson-Beebout, S.E. |
| author_browse | Johnson-Beebout, S.E. Rubianes, F.H.C. Swamy, B.P. Mallikarjuna |
| author_facet | Rubianes, F.H.C. Swamy, B.P. Mallikarjuna Johnson-Beebout, S.E. |
| author_sort | Rubianes, F.H.C. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | As zinc (Zn) fertilizer and water management affect the expression of Zn-enriched grain traits in rice, we studied the effect of Zn fertilizer and water management on Zn uptake and grain yield of different biofortification breeding lines and the possible biases in selection for high grain Zn content. The first field experiment showed that longer duration genotypes had higher grain Zn uptake rate than shorter duration genotypes during grain filling. In the first greenhouse experiment, neither application of Zn fertilizer at mid-tillering nor application at flowering significantly increased the grain Zn concentration. In the second greenhouse experiment, application of alternate wetting and drying (AWD) significantly increased the available soil Zn and plant Zn uptake but not grain Zn concentration. Terminal drying (TD) did not increase the available soil Zn or grain Zn contents. The second field experiment confirmed that differences in TD were not important in understanding differences between genotypes. Zn application is not always necessary to breeding trials unless there is a severe Zn deficiency and there is no need to carefully regulate TD prior to harvest. |
| format | Journal Article |
| id | CGSpace165083 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | Cambridge University Press |
| publisherStr | Cambridge University Press |
| record_format | dspace |
| spelling | CGSpace1650832025-05-14T10:23:52Z Irrigation management risks and Zn fertilization needs in Zn biofortification breeding in lowland rice Rubianes, F.H.C. Swamy, B.P. Mallikarjuna Johnson-Beebout, S.E. biofortification breeding fertilizers irrigation management lowland rice zinc biofortification fertilizers fertilizer application zinc water management rice cereals grain soil processing drying genotypes genetic phenomena flooding As zinc (Zn) fertilizer and water management affect the expression of Zn-enriched grain traits in rice, we studied the effect of Zn fertilizer and water management on Zn uptake and grain yield of different biofortification breeding lines and the possible biases in selection for high grain Zn content. The first field experiment showed that longer duration genotypes had higher grain Zn uptake rate than shorter duration genotypes during grain filling. In the first greenhouse experiment, neither application of Zn fertilizer at mid-tillering nor application at flowering significantly increased the grain Zn concentration. In the second greenhouse experiment, application of alternate wetting and drying (AWD) significantly increased the available soil Zn and plant Zn uptake but not grain Zn concentration. Terminal drying (TD) did not increase the available soil Zn or grain Zn contents. The second field experiment confirmed that differences in TD were not important in understanding differences between genotypes. Zn application is not always necessary to breeding trials unless there is a severe Zn deficiency and there is no need to carefully regulate TD prior to harvest. 2018-06 2024-12-19T12:54:42Z 2024-12-19T12:54:42Z Journal Article https://hdl.handle.net/10568/165083 en Limited Access Cambridge University Press RUBIANES, F.H.C.; SWAMY, B.P. MALLIKARJUNA and JOHNSON-BEEBOUT, S.E. 2018. Irrigation management risks and Zn fertilization needs in Zn biofortification breeding in lowland rice. Ex. Agric., Volume 54 no. 3 p. 382-398 |
| spellingShingle | biofortification breeding fertilizers irrigation management lowland rice zinc biofortification fertilizers fertilizer application zinc water management rice cereals grain soil processing drying genotypes genetic phenomena flooding Rubianes, F.H.C. Swamy, B.P. Mallikarjuna Johnson-Beebout, S.E. Irrigation management risks and Zn fertilization needs in Zn biofortification breeding in lowland rice |
| title | Irrigation management risks and Zn fertilization needs in Zn biofortification breeding in lowland rice |
| title_full | Irrigation management risks and Zn fertilization needs in Zn biofortification breeding in lowland rice |
| title_fullStr | Irrigation management risks and Zn fertilization needs in Zn biofortification breeding in lowland rice |
| title_full_unstemmed | Irrigation management risks and Zn fertilization needs in Zn biofortification breeding in lowland rice |
| title_short | Irrigation management risks and Zn fertilization needs in Zn biofortification breeding in lowland rice |
| title_sort | irrigation management risks and zn fertilization needs in zn biofortification breeding in lowland rice |
| topic | biofortification breeding fertilizers irrigation management lowland rice zinc biofortification fertilizers fertilizer application zinc water management rice cereals grain soil processing drying genotypes genetic phenomena flooding |
| url | https://hdl.handle.net/10568/165083 |
| work_keys_str_mv | AT rubianesfhc irrigationmanagementrisksandznfertilizationneedsinznbiofortificationbreedinginlowlandrice AT swamybpmallikarjuna irrigationmanagementrisksandznfertilizationneedsinznbiofortificationbreedinginlowlandrice AT johnsonbeeboutse irrigationmanagementrisksandznfertilizationneedsinznbiofortificationbreedinginlowlandrice |