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Book Chapter 2001

Autor: Joshi, Krishna D. Sthapit, B.R. Witcombe, John R.

Participatory plant-breeding (PPB) methods were used to develop two acceptable, cold-tolerant rice varieties in Nepal: Maehhapuchhre-3 (M-3) and Machhapuchhre-9 (M-9). Both were derived from the cross Fuji 102 Chhomrong Dhan. Following the introduction of these varieties from 1993 to 1998,the cha...

Enlace original: https://cgspace.cgiar.org/handle/10568/81905

Investigación en Agricultura
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Joshi, Krishna D. ,  Sthapit, B.R. ,  Witcombe, John R. ,  [The impact of participatory plant breeding (PPB) on landrace diversity: A case study for high-altitude rice in Nepal] ,  The impact of participatory plant breeding (PPB) on landrace diversity: A case study for high-altitude rice in Nepal
Book Chapter 2001

Autor: Kumar, Ravi Singh, D.N. Prasad, S.C. Gangwar, J.S. Virk, Daljit S. Witcombe, John R.

This paper describes a participatory plant-breeding (PPB) program for rice in eastern India, targeted at a range of ecosystems. Only a few crosses with large populations were used. Most resources were used on selection by farmers among progeny bulks grown on a research station, but farmers also s...

Enlace original: https://cgspace.cgiar.org/handle/10568/81894

Investigación en Agricultura
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Kumar, Ravi ,  Singh, D.N. ,  Prasad, S.C. ,  Gangwar, J.S. ,  Virk, Daljit S. ,  Witcombe, John R. ,  [Participatory plant breeding in rice in Eastern India] ,  Participatory plant breeding in rice in Eastern India
Book Chapter 2001

Autor: Mali, S.S. Virk, Daljit S. Singh, K.B. Witcombe, John R.

Participatory varietal selection (PVS) was used to try to identify an alternative to the most popular rice variety, Pusa 44, in the Patiala district of the Punjab. Pusa 44 (released in 1993 in India but not recommended for the Punjab) is grown in over 50% of the rice area in Patiala. It is highly...

Enlace original: https://cgspace.cgiar.org/handle/10568/81902

Investigación en Agricultura
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Mali, S.S. ,  Virk, Daljit S. ,  Singh, K.B. ,  Witcombe, John R. ,  [Participatory varietal selection in rice in the Punjab] ,  Participatory varietal selection in rice in the Punjab
Book Chapter 2001

Autor: Joshi, Krishna D. Witcombe, John R.

A survey of nearly 1500 households in the high-potential production system (HPPSs) of the Chitwan and Nawalparasi districts of Nepal showed gre.t physical and socioeconomic diversity. Varietal diversity was low in all the crops studied and varied according to location in main-season rice. Masuli ...

Enlace original: https://cgspace.cgiar.org/handle/10568/81900

Investigación en Agricultura
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Joshi, Krishna D. ,  Witcombe, John R. ,  [Participatory varietal selection, food security, and varietal diversity in a high-potential production system in Nepal] ,  Participatory varietal selection, food security, and varietal diversity in a high-potential production system in Nepal
Book Chapter 2001

Autor: Witcombe, John R. Subedi, Madu Joshi, Krishna D. Witcombe, John R.

There is a limit to the capacity of any breeding program, and the more crosses that are made, the, smaller The size of each cross. The theory of the optimum number of crosses in inbreeding crops is bristly Reviewed. The theory is unsatisfactory in determining the optimum number of crosses, but mo...

Enlace original: https://cgspace.cgiar.org/handle/10568/81897

Investigación en Agricultura
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Witcombe, John R. ,  Subedi, Madu ,  Joshi, Krishna D. ,  Witcombe, John R. ,  [Towards a practical participatory plant-breeding strategy in predominantly self-pollinated crops] ,  Towards a practical participatory plant-breeding strategy in predominantly self-pollinated crops

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