John Witcombe - Research outputs

E-pub ahead of print

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 Nov 2024, (E-pub ahead of print) In: G3: Genes, Genomes, Genetics.

Research output: Contribution to journal › Article › peer-review

Published

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., Mar 2021, In: Genetic Resources and Crop Evolution. 68, 3, p. 821–834

Research output: Contribution to journal › Article › peer-review

Published

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., Oct 2019, In: Experimental Agriculture. 55, 5, p. 765-775

Research output: Contribution to journal › Article › peer-review

Published

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. (eds.). Routledge

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Published

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., Apr 2018, In: Molecular Breeding. 38, 38.

Research output: Contribution to journal › Article › peer-review

Published

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 Oct 2017, In: Experimental Agriculture. 53, 4, p. 512-527

Research output: Contribution to journal › Article › peer-review

Published

Adoption of rice varieties. 2. Accelerating uptake

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

Research output: Contribution to journal › Article › peer-review

Published

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

Witcombe, J. & Yadavendra, J. P., Oct 2014, In: Field Crops Research. 167, p. 143-152

Research output: Contribution to journal › Article › peer-review

Published

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 Jul 2014, In: Crop Science. 54, 5, p. 2175-2182

Research output: Contribution to journal › Article › peer-review

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 journal › Article › peer-review

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 journal › Article › peer-review

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 journal › Article › peer-review

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 journal › Article › peer-review

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. (Editor) & Wood, D. (Editor), 1 Jan 2011, Agrobiodiversity Management for Food Security: A Critical Review. 2011 ed. CABI Publishing

Research output: Chapter in Book/Report/Conference proceeding › Chapter

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 journal › Article › peer-review

Published

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

Witcombe, J. R., Devkotas, K. P. & Joshi, K. D., 10 Sept 2010, In: Experimental Agriculture. 46, 4, p. 425-437

Research output: Contribution to journal › Article › peer-review

Published

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 Jul 2009, In: Field Crops Research. 113, 1, p. 24-30

Research output: Contribution to journal › Article › peer-review

Published

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 Jun 2009, In: Field Crops Research. 112, 2-3, p. 124-130

Research output: Contribution to journal › Article › peer-review

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 journal › Article › peer-review

Published

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 Jun 2008, In: Experimental Agriculture. 44, 3, p. 339-348

Research output: Contribution to journal › Article › peer-review

Published

Evaluating cultivars in unbalanced on-farm participatory trials.

Virk, D. S. & Witcombe, J. R., 5 Mar 2008, In: Field Crops Research. 106, 2, p. 105-115

Research output: Contribution to journal › Article › peer-review

Published

Breeding for abiotic stresses for sustainable agriculture

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

Research output: Contribution to journal › Article › peer-review

Published

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 Jan 2008, 2008 ed. Unknown.

Research output: Book/Report › Commissioned report

Published

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., Jan 2008, 31 p.

Research output: Book/Report › Other report

Published

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 Dec 2007.

Research output: Contribution to conference › Paper

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 journal › Article › peer-review

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 journal › Article › peer-review

Published

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 Mar 2007, In: Field Crops Research. 101, 2, p. 180-186

Research output: Contribution to journal › Article › peer-review

Published

Collaborative breeding with farmers can be effective.

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

Research output: Contribution to journal › Article › peer-review

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 journal › Article › peer-review

Published

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 Jan 2007, In: Field Crops Research. 100, 1, p. 107-116

Research output: Contribution to journal › Article › peer-review

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 journal › Article › peer-review

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

Research output: Contribution to journal › Article › peer-review

Published

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

Stirling, C. M., Harris, D. & Witcombe, J. R., 1 Apr 2006, In: Experimental Agriculture. 42, 2, p. 127-146

Research output: Contribution to journal › Article › peer-review

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 journal › Article › peer-review

Published

Marker assisted selection for participatory plant breeding in rice

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

Research output: Book/Report › Commissioned report

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 journal › Article › peer-review

Published

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 Oct 2005, In: Experimental Agriculture. 41, 4, p. 413-426

Research output: Contribution to journal › Article › peer-review

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 journal › Article › peer-review

Published

DFID Plant Sciences Research Programme Annual Report 2005.

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

Research output: Book/Report › Commissioned report

Published

Marker-evaluated selection: Evaluating allele frequencies in rice selected under extreme environments to find agronomically important loci

Steele, K. A. & Witcombe, J. R., 1 Jan 2005.

Research output: Contribution to conference › Paper

Published

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

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

Research output: Book/Report › Commissioned report

Published

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. (Editor), Stevenson, P. C. (Editor), Neupane, R. K. (Editor) & Grzywacz, D. (Editor), 17 Nov 2004.

Research output: Contribution to conference › Paper

Published

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. (Editor), Stevenson, P. C. (Editor), Neupane, R. K. (Editor) & Grzywacz, D. (Editor), 17 Nov 2004.

Research output: Contribution to conference › Paper

Published