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61.
G. Ortiz-Ferrara A. K. Joshi R. Chand M. R. Bhatta A. Mudwari D. B. Thapa M. A. Sufian T. P. Saikia R. Chatrath J. R. Witcombe D. S. Virk R. C. Sharma 《Euphytica》2007,157(3):399-407
There are many socioeconomic and technological constraints that affect the production of wheat and other staple cereals in
South Asia. Wheat production is one of the economic mainstays in South Asia, but the yield gap between farmers’ fields and
experimental yields is wide across the region. For the last 3 years, CIMMYT and the CAZS-NR have been collaborating with farmers,
NARS, and other South Asian partners to promote improved wheat varieties and new resource conservation technologies (RCTs)
in farmers’ fields. Participation fostered among farmers, scientists, extension specialists, NGOs and the private sector included
variety selection (PVS), and evaluation of agronomic practices. Through PVS, several farmer-preferred technologies have been
identified including wheat varieties for adverse conditions in eastern Uttar Pradesh (India) and for boron deficiency in parts
of Nepal. There has been considerable improvement in the access of farmers to new varieties and technologies in the rural
areas. Yield increases (15–70%) have been achieved by resource-poor farmers over the existing varieties through the adoption
of new varieties and RCTs. The farmers have also made substantial cost savings and achieved higher yields through resource-conserving
agronomic techniques such as zero till. Seed of the new farmer-selected cultivars has been multiplied by groups of collaborating
farmers and widely distributed. 相似文献