Porth Ymchwil

Professor John Witcombe

Athro Emeritws

Aelodaeth

51 - 75 o blith 75Maint y tudalen: 50
Trefnu yn ôl: Teitl
  1. Cyhoeddwyd

    Participatory plant breeding in rice in Nepal.

    Joshi, K. D., Sthapit, B. R., Subedi, M., Witcombe, J. R., Cleveland, D. A. (Golygydd) & Soleri, D. (Golygydd), 1 Ion 2002, Farmers: Scientists and Plant Breeding: Integrating Knowledge and Practice. 2002 gol. CABI Publishing, t. 239-267

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod

  2. Cyhoeddwyd

    Participatory plant breeding in rice in eastern India-the success of a NGO/GO partnership

    Virk, D. S., Singh, D. N., Kumar, R., Prasad, S. C., Gangwar, J. S. & Witcombe, J. R., 12 Maw 2002, t. 5-7.

    Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

  3. Cyhoeddwyd

    Participatory plant breeding in rice in low-altitude production systems in Nepal

    Gyawali, S., Joshi, K. D. & Witcombe, J. R., 12 Maw 2002, t. 8-10.

    Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

  4. 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

  5. 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

  6. Cyhoeddwyd

    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 Mai 2012, Yn: Field Crops Research. 131, t. 40-48

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

  7. Cyhoeddwyd

    Participatory scaling up of participatory varietal selection.

    Joshi, K. D., Gyawali, S. & Witcombe, J. R., 12 Maw 2002, t. 40-43.

    Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

  8. 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

  9. Cyhoeddwyd

    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 Hyd 2002, Yn: Euphytica. 127, 3, t. 445-458

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

  10. Cyhoeddwyd

    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 Hyd 2007, Yn: Euphytica. 157, 3, t. 399-407

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

  11. Cyhoeddwyd

    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 Chwef 2013, Yn: BMC Plant Biology. 13, 22

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

  12. Cyhoeddwyd

    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 Ion 2013, Yn: Theoretical and Applied Genetics. 126, 1, t. 101-108

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

  13. Cyhoeddwyd

    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 Ion 2009, Yn: Experimental Agriculture. 45, 1, t. 77-91

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

  14. Cyhoeddwyd

    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 Maw 2014, Yn: Field Crops Research. 158, t. 15-23

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

  15. Cyhoeddwyd

    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., Maw 2000, Yn: Euphytica. 112, t. 175–186

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

  16. Cyhoeddwyd

    Rice PPB in India and Nepal: Client-oriented plant breeding using few, carefully chosen crosses

    Witcombe, J., Virk, D. & Joshi, K. D., 2019, Farmers and Plant Breeding: Current Approaches and Perspectives. Westengen, O. T. & Winge, T. (gol.). Routledge

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod

  17. Cyhoeddwyd

    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 Hyd 2010, Yn: Genetic Resources and Crop Evolution. 57, 7, t. 1013-1022

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

  18. 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

  19. 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

  20. 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, A., 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

  21. 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

  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. (Golygydd), Stevenson, P. C. (Golygydd), Neupane, R. K. (Golygydd) & Grzywacz, D. (Golygydd), 17 Tach 2004.

    Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

  23. E-gyhoeddi cyn argraffu

    Thousands of trait-specific KASP markers designed for diverse breeding applications in rice (Oryza sativa)

    Steele, K., Quinton-Tulloch, M., Vyas, D. & Witcombe, J., 1 Tach 2024, (E-gyhoeddi cyn argraffu) Yn: G3: Genes, Genomes, Genetics.

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

  24. 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

  25. Cyhoeddwyd

    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 Awst 2000, Yn: International Rice Research Notes. 25, 2, t. 16-17

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

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