Porth Ymchwil

Professor John Witcombe

Athro Emeritws

Aelodaeth

26 - 50 o blith 74Maint y tudalen: 25
Trefnu yn ôl: Blwyddyn gyhoeddi
  1. 2007
  2. Cyhoeddwyd

    Trade-offs between on-farm varietal diversity and highly client-oriented breeding - a case study of upland rice in India.

    Virk, D. S. & Witcombe, J., 1 Meh 2007, Yn: Genetic Resources and Crop Evolution. 54, 4, t. 823-835

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

  3. Cyhoeddwyd

    Field evaluation of upland rice lines selected for QTLs controlling root traits.

    Steele, K. A., Virk, D. S., Kumar, R., Prasad, S. C. & Witcombe, J. R., 5 Maw 2007, Yn: Field Crops Research. 101, 2, t. 180-186

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

  4. Cyhoeddwyd

    Collaborative breeding with farmers can be effective.

    Gyawali, S., Sunwar, S., Subedi, M., Tripathi, M., Joshi, K. D. & Witcombe, J. R., 20 Chwef 2007, Yn: Field Crops Research. 101, 1, t. 88-95

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

  5. Cyhoeddwyd

    Mass and line selection can produce equally uniform rice varieties

    Virk, D. S., Steele, K. A. & Witcombe, J. R., 1 Chwef 2007, Yn: Field Crops Research. 100, 2-3, t. 341-347

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

  6. Cyhoeddwyd

    Highly client-oriented breeding, using local preferences and selection, produces widely adapted rice varieties.

    Joshi, K. D., Musa, A. M., Johansen, C., Gyawali, S., Harris, D. & Witcombe, J. R., 4 Ion 2007, Yn: Field Crops Research. 100, 1, t. 107-116

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

  7. 2006
  8. Cyhoeddwyd

    Marker-assisted selection to introgress QTLs controlling root traits into an Indian upland rice variety

    Steele, K. A., Price, A. H., Shashidhar, H. E. & Witcombe, J. R., 14 Medi 2006, Yn: Theoretical and Applied Genetics. 112, 2, t. 208-221

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

  9. Cyhoeddwyd

    Teamwork delivers biotechnology products to Indian small-holder crop-livestock producers: Pearl millet hybrid “HHB 67 Improved” enters seed delivery pipeline

    Hash, C. T., Sharma, A., Kolesnikova-Allen, M. A., Singh, S. D., Thakur, R. P., Bhasker Raj, AG., Ratnaji Rao, M. N. V., Nijhawan, D. C., Beniwal, C. R., Sagar, P., Yadav, H. P., Yadav, Y. P., Srikant, Bhatnagar, S. K., Khairwal, I. S., Howarth, C. J., Cavan, G. P., Gale, M. D., Liu, C., Devos, K. M., Breese, W. & Witcombe, J. R., Awst 2006, Yn: Journal of SAT Agricultural Research. 2, 1, 3 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

  10. Cyhoeddwyd

    Managing an agricultural research programme for poverty alleviation in developing countries: an institute without walls

    Stirling, C. M., Harris, D. & Witcombe, J. R., 1 Ebr 2006, Yn: Experimental Agriculture. 42, 2, t. 127-146

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

  11. Cyhoeddwyd

    Rice landrace diversity in Nepal: Variability of agro-morphological traits and SSR markers in landraces from a high-altitude site.

    Bajracharya, J., Steele, K. A., Jarvis, D. I., Sthapit, B. R. & Witcombe, J., 15 Chwef 2006, Yn: Field Crops Research. 95, 2-3, t. 327-335

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

  12. Cyhoeddwyd

    Marker assisted selection for participatory plant breeding in rice

    Steele, K. A., Virk, D. S. & Witcombe, J. R., 1 Ion 2006, 2006 gol. Centre for Arid Zone Studies.

    Allbwn ymchwil: Llyfr/Adroddiad › Adroddiad Comisiwn

  13. Cyhoeddwyd

    Participatory plant breeding is better described as highly client-oriented plant breeding. II. Optional farmer collaboration in the segregating generations.

    Witcombe, J. R., Gyawali, S., Sunwar, S., Sthapit, B. R. & Joshi, K. D., 1 Ion 2006, Yn: Experimental Agriculture. 42, 1, t. 79-90

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

  14. 2005
  15. Cyhoeddwyd

    Increasing the client orientation of maize breeding using farmer participation in eastern India

    Virk, D. S., Chakraborty, M., Ghosh, J., Prasad, S. C. & Witcombe, J. R., 1 Hyd 2005, Yn: Experimental Agriculture. 41, 4, t. 413-426

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

  16. Cyhoeddwyd

    Participatory plant breeding is better described as highly client-oriented plant breeding. I. Four indicators of client-orientation in plant breeding

    Witcombe, J. R., Joshi, K. D., Gyawali, S., Musa, A. M., Johansen, C., Virk, D. S. & Sthapit, B. R., 1 Gorff 2005, Yn: Experimental Agriculture. 41, 3, t. 299-319

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

  17. Cyhoeddwyd

    DFID Plant Sciences Research Programme Annual Report 2005.

    Witcombe, J. R., Harris, D. & Stirling, C. M., 1 Ion 2005, 2005 gol. Centre for Arid Zone Studies.

    Allbwn ymchwil: Llyfr/Adroddiad › Adroddiad Comisiwn

  18. Cyhoeddwyd
  19. Cyhoeddwyd

    Participatory varietal selection (PVS) for post rainy (rabi) season sorghum.

    Rana, B. S., Witcombe, J. R. & Virk, D. S., 1 Ion 2005, 2005 gol. Centre for Arid Zone Studies.

    Allbwn ymchwil: Llyfr/Adroddiad › Adroddiad Comisiwn

  20. 2004
  21. Cyhoeddwyd

    Lessons learned from scaling up participatory variety selection: LI-BIRD experiences.

    Devkota, K. P., Gyawali, S., Tripathi, M. P., Joshi, K. D., Witcombe, J. R., Pande, S. (gol.), Stevenson, P. C. (gol.), Neupane, R. K. (gol.) & Grzywacz, D. (gol.), 17 Tach 2004.

    Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

  22. Cyhoeddwyd

    The scaling up process and outcomes of participatory crop improvement in Nepal: Adoption and Impact.

    Joshi, K. D., Devkota, K. P., Gyawali, S., Tripathi, M. P., Witcombe, J. R., Pande, S. (gol.), Stevenson, P. C. (gol.), Neupane, R. K. (gol.) & Grzywacz, D. (gol.), 17 Tach 2004.

    Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

  23. Cyhoeddwyd

    Marker-evaluated selection in rice: shifts in allele frequency among bulks selected in contrasting agricultural environments identify genomic regions of importance to rice adaptation and breeding.

    Steele, K. A., Edwards, G., Zhu, J. & Witcombe, J. R., 1 Hyd 2004, Yn: Theoretical and Applied Genetics. 109, 6, t. 1247-1260

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

  24. Cyhoeddwyd

    Marker-assisted selection of four root QTL and aroma to improve Kalinga III: Evaluation of pyramid lines and advanced bulks from backcrossing

    Steele, K. A., Singh, D. N., Kumar, R., Prasad, S. C., Billore, M., Virk, D. S., Shashidhar, H. E. & Witcombe, J. R., 1 Ion 2004.

    Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

  25. 2003
  26. Cyhoeddwyd

    The impact of participatory plant breeding (PPB) on landrace diversity: A case study for high-altitude rice in Nepal.

    Joshi, K. D. & Witcombe, J. R., 1 Hyd 2003, Yn: Euphytica. 134, 1, t. 117-125

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

  27. Cyhoeddwyd

    Collaborative and consultative participatory plant breeding of rice for the rainfed uplands of eastern India

    Virk, D. S., Singh, D. N., Prasad, S. C., Gangwar, J. S. & Witcombe, J. R., 1 Meh 2003, Yn: Euphytica. 132, 1, t. 95-108

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

  28. Cyhoeddwyd

    Participatory plant breeding in maize: a case study from Gujarat, India.

    Witcombe, J. R., Joshi, A. & Goyal, S. N., 1 Ebr 2003, Yn: Euphytica. 130, 3, t. 413-422

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

  29. Cyhoeddwyd

    Participatory crop improvement in high potential production systems - piloting sustainable adoption of new technologies.

    Joshi, K. D., Gyawali, S. & Witcombe, J. R., 1 Ion 2003, 2003 gol. Centre for Arid Zone Studies.

    Allbwn ymchwil: Llyfr/Adroddiad › Adroddiad Comisiwn

  30. Cyhoeddwyd

    Selection for salt-tolerance and early heading in bread wheat

    Mahar, A. R., Hollington, P. A., Witcombe, J. R. & Virk, D. S., 1 Ion 2003, Yn: Cereal research Communications. 31, 1-2, t. 81-88

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

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