Professor John Witcombe

Athro Emeritws

  1. 2021
  2. Cyhoeddwyd

    KASP™ based markers reveal a population sub-structure in temperate rice (Oryza sativa L.) germplasm and local landraces grown in the Kashmir valley, north-western Himalayas

    Shikari, A. B., Najeeb, S., Khan, G., Mohidin, F. A., Shah, A. H., Nehvi, F. A., Wani, S. A., Bhat, N. A., Waza, S. A., Subba Roa, L. V., Steele, K. & Witcombe, J., Maw 2021, Yn: Genetic Resources and Crop Evolution. 68, 3, t. 821–834

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  3. 2019
  4. Cyhoeddwyd

    Identifying famers' preferences and constraints to Pearl Millet production in the Sahel and North-Sudan zones of Burkina Faso

    Drabo, I., Zangre, R. G., Danquah, E. Y., Ofori, K., Witcombe, J. & Hash, C. T., Hyd 2019, Yn: Experimental Agriculture. 55, 5, t. 765-775

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  5. 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 CynhadleddPennod

  6. 2018
  7. Cyhoeddwyd

    Accelerating public sector rice breeding with high-density KASP markers derived from whole genome sequencing of indica rice

    Steele, K., Quinton-Tulloch, M., Amgai, R. B., Dhakal, R., Khatiwada, S. P., Vyas, D., Heine, M. & Witcombe, J., Ebr 2018, Yn: Molecular Breeding. 38, 38.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  8. 2017
  9. Cyhoeddwyd

    Adoption of rice varieties - I. Age of varieties and patterns of variability

    Witcombe, J. R., Khadka, K., Puri, R. R., Khanal, N. P., Sapkota, A. & Joshi, K. D., 1 Hyd 2017, Yn: Experimental Agriculture. 53, 4, t. 512-527

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  10. Cyhoeddwyd

    Adoption of rice varieties. 2. Accelerating uptake

    Witcombe, J. R., Khadka, K., Puri, R. R., Khanal, N. P., Sapkota, A. & Joshi, K. D., 1 Hyd 2017, Yn: Experimental Agriculture. 53, 4, t. 627-643

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  11. 2014
  12. Cyhoeddwyd

    How much evidence is needed before client-oriented breeding (COB) is institutionalised? Evidence from rice and maize in India

    Witcombe, J. & Yadavendra, J. P., Hyd 2014, Yn: Field Crops Research. 167, t. 143-152

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  13. Cyhoeddwyd

    Development of a Set of Chromosome Segment Substitution Lines in Pearl Millet [Pennisetum glaucum (L.) R. Br.]

    Kumari, B. R., Kolesnikova-Allen, M. A., Hash, C. T., Senthilvel, S., Nepolean, T., Kishor, P. B. K., Riera-Lizarazu, O., Witcombe, J. & Srivastava, R. K., 28 Gorff 2014, Yn: Crop Science. 54, 5, t. 2175-2182

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad 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 gyfnodolynErthygladolygiad gan gymheiriaid

  15. 2013
  16. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  17. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  18. 2012
  19. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  20. 2011
  21. Cyhoeddwyd

    Impact of introduction of modern varieties on crop diversity

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

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddPennod

  22. 2010
  23. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  24. Cyhoeddwyd

    Linking community-based seed producers to markets for a sustainable seed supply system.

    Witcombe, J. R., Devkotas, K. P. & Joshi, K. D., 10 Medi 2010, Yn: Experimental Agriculture. 46, 4, t. 425-437

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  25. 2009
  26. Cyhoeddwyd

    Has the introduction of modern rice varieties changed rice genetic diversity in a high-altitude region of Nepal?

    Steele, K. A., Gyawali, S., Joshi, K. D., Shrestha, P., Sthapit, B. R. & Witcombe, J. R., 10 Gorff 2009, Yn: Field Crops Research. 113, 1, t. 24-30

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  27. Cyhoeddwyd

    Identifying superior wheat cultivars in participatory research on resource poor farms.

    Thapa, D. B., Sharma, R. C., Mudwari, A., Ortiz-Ferrara, G., Sharma, S., Basnet, R. K., Witcombe, J. R., Virk, D. S. & Joshi, K. D., 26 Meh 2009, Yn: Field Crops Research. 112, 2-3, t. 124-130

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  28. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  29. 2008
  30. Cyhoeddwyd

    Improving the food security of low-resource farmers: introducing horsegram into maize-based cropping systems.

    Witcombe, J. R., Billore, M., Singhal, H. C., Patel, N. B., Tikka, B. S., Saini, D. P., Sharma, L. K., Sharma, R., Yadav, S. K. & Yadavendra, J. P., 1 Meh 2008, Yn: Experimental Agriculture. 44, 3, t. 339-348

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  31. Cyhoeddwyd

    Evaluating cultivars in unbalanced on-farm participatory trials.

    Virk, D. S. & Witcombe, J. R., 5 Maw 2008, Yn: Field Crops Research. 106, 2, t. 105-115

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  32. Cyhoeddwyd

    Breeding for abiotic stresses for sustainable agriculture

    Witcombe, J. R., Hollington, P. A., Howarth, C. J., Reader, S. & Steele, K. A., 27 Chwef 2008, Yn: Philosophical Transactions of The Royal Society B: Biological Sciences. 363, 1492, t. 703-716

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  33. Cyhoeddwyd

    Food Security through Ricebean Research in India and Nepal (FOSRIN) Report 2. Identification of polymorphic markers in ricebean (Vigna umbellata).

    Bajracharya, J., Singh, S., Dangol, B., Hollington, P. A. & Witcombe, J. R., 1 Ion 2008, 2008 gol. Unknown.

    Allbwn ymchwil: Llyfr/AdroddiadAdroddiad Comisiwn

  34. Cyhoeddwyd

    A proposal for the release of an aromatic rice variety Suanulo Sugandha (A rice variety developed using client-oriented breeding (COB) approaches)

    Witcombe, J., Devkotas, K. P., Tripathi, M. P., Gyawali, S., Subedi, M., Shrestha, P. K., Chaudhary, B. N., Yadav, R. B., Chaudhary, D., Gautam, A. P., Akhtar, T., Khatiwada, S. P., Adhikari, N. P., Chapagain, K. & Joshi, K., Ion 2008, 31 t.

    Allbwn ymchwil: Llyfr/AdroddiadAdoddiad Arall

  35. 2007
  36. Cyhoeddwyd

    Client-Oriented Breeding and Seed Supply

    Witcombe, J. R., Devkota, K. P., Virk, D. S., Rawal, K. B., Prasad, S. C., Kumar, V. & Joshi, K. D., 12 Rhag 2007.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapur

  37. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  38. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  39. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  40. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  41. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  42. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  43. 2006
  44. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  45. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  46. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  47. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  48. 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/AdroddiadAdroddiad Comisiwn

  49. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  50. 2005
  51. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  52. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  53. 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/AdroddiadAdroddiad Comisiwn

  54. Cyhoeddwyd
  55. 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/AdroddiadAdroddiad Comisiwn

  56. 2004
  57. 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 gynhadleddPapur

  58. 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 gynhadleddPapur

  59. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  60. 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 gynhadleddPapur

  61. 2003
  62. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  63. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  64. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  65. 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/AdroddiadAdroddiad Comisiwn

  66. 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 gyfnodolynErthygladolygiad gan gymheiriaid

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