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Book: International Germplasm Transfer: Past and Present
Published by: Crop Science Society of America and American Society of Agronomy

 

This chapter in INTERNATIONAL GERMPLASM TRANSFER: PAST AND PRESENT

  1.  p. 117-134
    CSSA Special Publication 23.
    International Germplasm Transfer: Past and Present

    Ronny R. Duncan (ed.)

    ISBN: 978-0-89118-602-1

     

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doi:10.2135/cssaspecpub23.c9

International Activities in Sorghum Germplasm Acquisition during the Past Thirty-Five years

  1. R.R. Duncan,
  2. Jeff Dahlberg and
  3. M. Spinks
  1. University of Georgia Grin, Georgia
    USDA-ARS Tropical Agriculture Research Station Mayagüez, Puerto Rico
    USDA-ARS Plant Genetic Resources Conservation Unit Griffin, Georgia

Abstract

Abstract

Organized collecting of Sorghum sp. began in the mid-1950s with the hybrid production era, but some of the earliest introductions were brought from Africa with the slave trade and continued in the early part of the 20th century. About 80% of the total sorghum collection was introduced from the developing countries of the semiarid tropics. Collections exceeding 30 000 accessions have been assembled at the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT, Asia Center) in India and at the Plant Genetic Resources Conservation Lab at Griffin, GA. Only 1.2% of the total sorghum collection is composed of wild and weedy relatives. The major enhancement activity has been the Sorghum Conversion Program in which 533 converted (photoperiod insensitive) lines have been released to the sorghum community. The competitiveness of the feed grain industry in developed countries make sorghum an excellent crop to genetically engineer value-added traits. The survival of the future World Sorghum Industry will depend on innovative and aggressive research to produce new and improved sorghum to compete with other feed grains and forages in marginal environments.

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