Professor John Witcombe

Emeritus Professor

  1. Article › Research › Peer-reviewed
  2. Published

    Mapping quantitative trait loci for downy mildew resistance in pearl millet

    Jones, E. S., Liu, C. J., Gale, M. D., Hash, C. T. & Witcombe, J. R., Aug 1995, In: Theoretical and Applied Genetics. 91, 3, p. 448-456

    Research output: Contribution to journalArticlepeer-review

  3. Published

    Mapping quantitative trait loci for resistance to downy mildew in pearl millet: Field and glasshouse screens detect the same QTL

    Jones, E. S., Breese, W. A., Liu, C. J., Singh, S. D., Shaw, D. S. & Witcombe, J. R., 1 Jul 2002, In: Crop Science. 42, 4, p. 1316-1323

    Research output: Contribution to journalArticlepeer-review

  4. Published

    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 Sept 2006, In: Theoretical and Applied Genetics. 112, 2, p. 208-221

    Research output: Contribution to journalArticlepeer-review

  5. Published

    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 Oct 2004, In: Theoretical and Applied Genetics. 109, 6, p. 1247-1260

    Research output: Contribution to journalArticlepeer-review

  6. Published

    Mass and line selection can produce equally uniform rice varieties

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

    Research output: Contribution to journalArticlepeer-review

  7. Published

    Number of crosses and population size for participatory and classical plant breeding

    Witcombe, J. R. & Virk, D. S., 1 Dec 2001, In: Euphytica. 122, 3, p. 451-462

    Research output: Contribution to journalArticlepeer-review

  8. Published

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

    Witcombe, J. R., Joshi, A. & Goyal, S. N., 1 Apr 2003, In: Euphytica. 130, 3, p. 413-422

    Research output: Contribution to journalArticlepeer-review

  9. Published

    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 Jul 2005, In: Experimental Agriculture. 41, 3, p. 299-319

    Research output: Contribution to journalArticlepeer-review

  10. Published

    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 Jan 2006, In: Experimental Agriculture. 42, 1, p. 79-90

    Research output: Contribution to journalArticlepeer-review

  11. Published

    Participatory research approaches rapidly improve household food security in Nepal and identify policy changes required for institutionalisation

    Joshi, K. D., Devkota, K. P., Harris, D., Khanal, N. P., Paudyal, B., Sapkota, A. & Witcombe, J. R., 13 May 2012, In: Field Crops Research. 131, p. 40-48

    Research output: Contribution to journalArticlepeer-review

  12. Published

    Participatory varietal selection in rice in Nepal in favourable agricultural environments - A comparison of two methods assessed by varietal adoption

    Joshi, K. D. & Witcombe, J. R., 1 Oct 2002, In: Euphytica. 127, 3, p. 445-458

    Research output: Contribution to journalArticlepeer-review

  13. Published

    Partnering with farmers to accelerate adoption of new technologies in South Asia to improve wheat productivity.

    Ortiz-Ferrara, G., Joshi, A. K., Chand, R., Bhatta, M. R., Mudwari, A., Thapa, D. B., Sufian, M. A., Saikia, T. P., Chatrath, R., Witcombe, J. R., Virk, D. S. & Sharma, R. C., 1 Oct 2007, In: Euphytica. 157, 3, p. 399-407

    Research output: Contribution to journalArticlepeer-review

  14. Published

    Plant breeding can be made more efficient by having fewer, better crosses

    Witcombe, J. R., Gyawali, S., Subedi, M., Virk, D. S. & Joshi, K. D., 7 Feb 2013, In: BMC Plant Biology. 13, 22

    Research output: Contribution to journalArticlepeer-review

  15. Published

    QTLs associated with root traits increase yield in upland rice when transferred through marker-assisted selection

    Steele, K. A., Price, A. H., Witcombe, J. R., Shrestha, R., Singh, B. N., Gibbons, J. M. & Virk, D. S., 1 Jan 2013, In: Theoretical and Applied Genetics. 126, 1, p. 101-108

    Research output: Contribution to journalArticlepeer-review

  16. Published

    REML is an effective analysis for mixed modelling of unbalanced on-farm varietal trials.

    Virk, D. S., Pandit, D. B., Sufian, M. A., Ahmed, F., Siddique, M. A., Samad, M. A., Rahman, M. M., Islam, M. M., Ortiz-Ferrara, G., Joshi, K. D. & Witcombe, J. R., 1 Jan 2009, In: Experimental Agriculture. 45, 1, p. 77-91

    Research output: Contribution to journalArticlepeer-review

  17. Published

    Regulatory reform of seed systems: Benefits and impacts from a mungbean case study in Nepal

    Joshi, K. D., Khanal, N. P., Harris, D., Khanal, N. N., Sapkota, A., Khadka, K., Dara, R., Neupane, R. K., Joshi, M. & Witcombe, J., 1 Mar 2014, In: Field Crops Research. 158, p. 15-23

    Research output: Contribution to journalArticlepeer-review

  18. Published

    Resistance gene deployment strategies in cereal hybrids using marker-assisted selection: gene pyramiding, three-way hybrids, and synthetic parent populations

    Witcombe, J. R. & Hash, C. T., Mar 2000, In: Euphytica. 112, p. 175–186

    Research output: Contribution to journalArticlepeer-review

  19. Published

    Rice landrace diversity in Nepal. Socio-economic and ecological factors determining rice landrace diversity in three agro-ecozones of Nepal based on farm surveys

    Bajracharya, J., Rana, R. B., Gauchan, D., Sthapit, B. R., Jarvis, D. I. & Witcombe, J. R., 1 Oct 2010, In: Genetic Resources and Crop Evolution. 57, 7, p. 1013-1022

    Research output: Contribution to journalArticlepeer-review

  20. Published

    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 Feb 2006, In: Field Crops Research. 95, 2-3, p. 327-335

    Research output: Contribution to journalArticlepeer-review

  21. Published

    Selection for salt-tolerance and early heading in bread wheat

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

    Research output: Contribution to journalArticlepeer-review

  22. Published

    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., Aug 2006, In: Journal of SAT Agricultural Research. 2, 1, 3 p.

    Research output: Contribution to journalArticlepeer-review

  23. Published

    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 Oct 2003, In: Euphytica. 134, 1, p. 117-125

    Research output: Contribution to journalArticlepeer-review

  24. Published

    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 Jun 2007, In: Genetic Resources and Crop Evolution. 54, 4, p. 823-835

    Research output: Contribution to journalArticlepeer-review

  25. Published

    Variation in RFLP markers associated with root growth in QTLs in Indian upland rice

    Steele, K. A., Moore, B. J., Witcombe, J. R., Virk, D. S. & Price, A. H., 1 Aug 2000, In: International Rice Research Notes. 25, 2, p. 16-17

    Research output: Contribution to journalArticlepeer-review

  26. Chapter › Research › Not peer-reviewed
  27. Published

    Impact of introduction of modern varieties on crop diversity

    Witcombe, J. R., Joshi, J. D., Virk, D. S., Sthapit, B. R., Lenne, J. M. (ed.) & Wood, D. (ed.), 1 Jan 2011, Agrobiodiversity Management for Food Security: A Critical Review. 2011 ed. CABI Publishing

    Research output: Chapter in Book/Report/Conference proceedingChapter