Professor John Witcombe
Emeritus Professor
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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
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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. 821–834Research output: Contribution to journal › Article › peer-review
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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
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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
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Combining PPB and marker-assisted selection: strategies and experiences with rice
Steele, K. A., Virk, D. S., Prasad, S. C., Kumar, R., Singh, D. N., Gangwar, J. S. & Witcombe, J. R., 1 Jan 2002.Research output: Contribution to conference › Paper
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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
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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. 16-17Research output: Contribution to journal › Article › peer-review
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Combining molecular marker technology and participatory techniques: A case study for drought-tolerant rice in eastern India II: Farmer evaluation of SLS-MAS bulks in participatory plant breeding
Steele, K. A., Singh, D. N., Kumar, R., Prasad, S. C., Virk, D. S., Gangwar, J. S. & Witcombe, J. R., 12 Mar 2002, p. 20-22.Research output: Contribution to conference › Paper
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Combining molecular marker technology and participatory techniques: A case study for drought-tolerant rice in eastern India II: Molecular breeding strategy
Steele, K. A., Edwards, G. & Witcombe, J. R., 12 Mar 2002, p. 16-19.Research output: Contribution to conference › Paper
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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. 1247-1260Research output: Contribution to journal › Article › peer-review
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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. 101-108Research output: Contribution to journal › Article › peer-review
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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 Jan 2004.Research output: Contribution to conference › Paper
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Innovative methods for rice breeding - combining participatory plant breeding (PPB) with molecular marker techniques
Steele, K. A., Virk, D. S. & Witcombe, J. R., 1 Jan 2002, 2002 ed. Centre for Arid Zone Studies.Research output: Book/Report › Commissioned report
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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. 180-186Research output: Contribution to journal › Article › peer-review
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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. 24-30Research output: Contribution to journal › Article › peer-review
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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. 208-221Research output: Contribution to journal › Article › peer-review
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Farmer Participatory Crop Improvement. III. Participatory Plant Breeding, a Case Study for Rice in Nepal
Sthapit, B. R., Joshi, K. D. & Witcombe, J. R., Oct 1996, In: Experimental Agriculture. 32, 4, p. 479-496Research output: Contribution to journal › Article › peer-review
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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. 127-146Research output: Contribution to journal › Article › peer-review
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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. 124-130Research output: Contribution to journal › Article › peer-review
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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. 77-91Research output: Contribution to journal › Article › peer-review
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An introduction to data management and analysis for participatory varietal selection trials
Virk, D. S. & Witcombe, J. R., 12 Mar 2002, p. 69-72.Research output: Contribution to conference › Paper
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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 Mar 2002, p. 5-7.Research output: Contribution to conference › Paper
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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. 341-347Research output: Contribution to journal › Article › peer-review
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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. 413-426Research output: Contribution to journal › Article › peer-review
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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 Jun 2003, In: Euphytica. 132, 1, p. 95-108Research output: Contribution to journal › Article › peer-review