Skip to main content
×
Home
    • Aa
    • Aa

Farmer Participatory Crop Improvement. I. Varietal Selection and Breeding Methods and Their Impact on Biodiversity

  • J. R. Witcombe (a1), A. Joshi (a2), K. D. Joshi (a3) and B. R. Sthapit (a3)
Abstract
SUMMARY

Farmer participatory approaches for the identification or breeding of improved crop cultivars can be usefully categorized into participatory varietal selection (PVS) and participatory plant breeding (PPB). Various PVS and PPB methods are reviewed. PVS is a more rapid and cost-effective way of identifying farmer-preferred cultivars if a suitable choice of cultivars exists. If this is impossible, then the more resource-consuming PPB is required. PPB can use, as parents, cultivars that were identified in successful PVS programmes. Compared with conventional plant breeding, PPB is more likely to produce farmer-acceptable products, particularly for marginal environments. The impact of farmer participatory research on biodiversity is considered. The long-term effect of PVS is to increase biodiversity, but where indigenous variability is high it can also reduce it. PPB has a greater effect on increasing biodiversity although its impact may be limited to smaller areas. PPB can be a dynamic form of in situ genetic conservation.

Copyright
Corresponding author
Author to whom correspondence should be addressed.
Linked references
Hide All

This list contains references from the content that can be linked to their source. For a full set of references and notes please see the PDF or HTML where available.

R. Chambers (1989). Institutions and practical change. Reversals, institutions and change. In Farmer First, 181195 (Eds R. Chambers , A. Pacey and L. A. Thrupp ). London: Intermediate Technology Publications.

Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Experimental Agriculture
  • ISSN: 0014-4797
  • EISSN: 1469-4441
  • URL: /core/journals/experimental-agriculture
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×