Rapid Ragi: A speed breeding protocol for finger millet
Background Climate change is gradually increasing demand for resilient, nutritious crops like finger millet or ragi. Ensuring food security requires researchers to develop improved and adapted cultivars rapidly. Modern techniques such as genomics-assisted breeding have emerged in the previous decade...
| Autores principales: | , , , , , , , , , , |
|---|---|
| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Springer
2025
|
| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/180415 |
| _version_ | 1855521180091416576 |
|---|---|
| author | Sajja, Sobhan Pranati, Jwala Shyamala, S. Vinutha, K.S. Reddy, Ramya Joshi, Priyanka Pannem, Srinivasulu Rakshit, P. Jadhav, Yashoda Kumar, C.V. Sameer Mayes, Sean |
| author_browse | Jadhav, Yashoda Joshi, Priyanka Kumar, C.V. Sameer Mayes, Sean Pannem, Srinivasulu Pranati, Jwala Rakshit, P. Reddy, Ramya Sajja, Sobhan Shyamala, S. Vinutha, K.S. |
| author_facet | Sajja, Sobhan Pranati, Jwala Shyamala, S. Vinutha, K.S. Reddy, Ramya Joshi, Priyanka Pannem, Srinivasulu Rakshit, P. Jadhav, Yashoda Kumar, C.V. Sameer Mayes, Sean |
| author_sort | Sajja, Sobhan |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Background
Climate change is gradually increasing demand for resilient, nutritious crops like finger millet or ragi. Ensuring food security requires researchers to develop improved and adapted cultivars rapidly. Modern techniques such as genomics-assisted breeding have emerged in the previous decade and combined with rapid generation advancement they will offer a step change in the speed of cultivar development.
Results
In this study, we developed a repeatable and cost-effective speed breeding protocol for finger millet by modulating the agronomic and physiological components for early generation advancement. A photoperiod of 9-hours, 29 ± 2℃ temperature, 70% relative humidity, 105 plants per 1.5 sq. ft., 0.17% Hoagland’s No. 2 solution spray, restricted irrigation and harvesting at physiological maturity successfully reduced 28–54 days across the maturity groups of finger millet. The advantage was validated in segregating populations confirming up to 4–5 generations a year, instead of 1–2 under field conditions.
Conclusion
The speed breeding protocol developed reduces the breeding cycle time significantly allowing increased genetic gain. The protocol provides the advantage of rapid development of recombinant inbred lines (RILs), high-throughput phenotyping for biotic and abiotic stresses, and genotyping for early generation selections. |
| format | Journal Article |
| id | CGSpace180415 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace1804152026-01-23T02:04:54Z Rapid Ragi: A speed breeding protocol for finger millet Sajja, Sobhan Pranati, Jwala Shyamala, S. Vinutha, K.S. Reddy, Ramya Joshi, Priyanka Pannem, Srinivasulu Rakshit, P. Jadhav, Yashoda Kumar, C.V. Sameer Mayes, Sean agricultural genetics genetic techniques quantitative trait marker assisted selection plant breeding reverse breeding Background Climate change is gradually increasing demand for resilient, nutritious crops like finger millet or ragi. Ensuring food security requires researchers to develop improved and adapted cultivars rapidly. Modern techniques such as genomics-assisted breeding have emerged in the previous decade and combined with rapid generation advancement they will offer a step change in the speed of cultivar development. Results In this study, we developed a repeatable and cost-effective speed breeding protocol for finger millet by modulating the agronomic and physiological components for early generation advancement. A photoperiod of 9-hours, 29 ± 2℃ temperature, 70% relative humidity, 105 plants per 1.5 sq. ft., 0.17% Hoagland’s No. 2 solution spray, restricted irrigation and harvesting at physiological maturity successfully reduced 28–54 days across the maturity groups of finger millet. The advantage was validated in segregating populations confirming up to 4–5 generations a year, instead of 1–2 under field conditions. Conclusion The speed breeding protocol developed reduces the breeding cycle time significantly allowing increased genetic gain. The protocol provides the advantage of rapid development of recombinant inbred lines (RILs), high-throughput phenotyping for biotic and abiotic stresses, and genotyping for early generation selections. 2025-06-12 2026-01-22T13:39:02Z 2026-01-22T13:39:02Z Journal Article https://hdl.handle.net/10568/180415 en Open Access application/pdf Springer Sajja, Sobhan; Pranati, Jwala; Shyamala, S.; Vinutha, K. S.; Reddy, Ramya; Joshi, Priyanka; Pannem, Srinivasulu; Rakshit, P.; Jadhav, Yashoda; Kumar, C. V. Sameer; & Mayes, Sean. 2025. Rapid Ragi: A speed breeding protocol for finger millet. Plant Method 21(84)https://doi.org/10.1186/s13007-025-01403-7 |
| spellingShingle | agricultural genetics genetic techniques quantitative trait marker assisted selection plant breeding reverse breeding Sajja, Sobhan Pranati, Jwala Shyamala, S. Vinutha, K.S. Reddy, Ramya Joshi, Priyanka Pannem, Srinivasulu Rakshit, P. Jadhav, Yashoda Kumar, C.V. Sameer Mayes, Sean Rapid Ragi: A speed breeding protocol for finger millet |
| title | Rapid Ragi: A speed breeding protocol for finger millet |
| title_full | Rapid Ragi: A speed breeding protocol for finger millet |
| title_fullStr | Rapid Ragi: A speed breeding protocol for finger millet |
| title_full_unstemmed | Rapid Ragi: A speed breeding protocol for finger millet |
| title_short | Rapid Ragi: A speed breeding protocol for finger millet |
| title_sort | rapid ragi a speed breeding protocol for finger millet |
| topic | agricultural genetics genetic techniques quantitative trait marker assisted selection plant breeding reverse breeding |
| url | https://hdl.handle.net/10568/180415 |
| work_keys_str_mv | AT sajjasobhan rapidragiaspeedbreedingprotocolforfingermillet AT pranatijwala rapidragiaspeedbreedingprotocolforfingermillet AT shyamalas rapidragiaspeedbreedingprotocolforfingermillet AT vinuthaks rapidragiaspeedbreedingprotocolforfingermillet AT reddyramya rapidragiaspeedbreedingprotocolforfingermillet AT joshipriyanka rapidragiaspeedbreedingprotocolforfingermillet AT pannemsrinivasulu rapidragiaspeedbreedingprotocolforfingermillet AT rakshitp rapidragiaspeedbreedingprotocolforfingermillet AT jadhavyashoda rapidragiaspeedbreedingprotocolforfingermillet AT kumarcvsameer rapidragiaspeedbreedingprotocolforfingermillet AT mayessean rapidragiaspeedbreedingprotocolforfingermillet |