About Us | Help Videos | Contact Us | Subscriptions

Members of ASA, CSSA, and SSSA: Due to system upgrades, your subscriptions in the digital library will be unavailable from May 15th to May 22nd. We apologize for any inconvenience this may cause, and thank you for your patience. If you have any questions, please call our membership department at 608-273-8080.


Institutional Subscribers: Institutional subscription access will not be interrupted for existing subscribers who have access via IP authentication, though new subscriptions or changes will not be available during the upgrade period. For questions, please email us at: queries@dl.sciencesocieties.org or call Danielle Lynch: 608-268-4976.



This article in JPR

  1. Vol. 3 No. 1, p. 77-80
    Received: June 16, 2008

    * Corresponding author(s): linghe.zeng@ars.usda.gov
Request Permissions


Registration of Five Exotic Germplasm Lines of Cotton Derived from Multiple Crosses among Gossypium Tetraploid Species

  1. L. Zeng * and
  2. W.R. Meredith
  1. USDA-ARS, Crop Genetics and Production Unit, Delta Research Center, Stoneville, MS 38776. Mention of trade name or commercial product in this article is solely for the purpose of providing specific information and does not imply recommendation or endorsement by the U.S. Department of Agriculture


Species polycross (SP) cotton germplasm was developed from multiple crosses among Gossypium tetraploid species. SP156 (Reg. No. GP-903, PI 654087), SP177 (Reg. No. GP-904, PI 654088), SP179 (Reg. No. GP-905, PI 654089), SP205 (Reg. No. GP-906, PI 654090), and SP225 (Reg. No. GP-907, PI 654091) were released by the USDA-ARS for their highly desirable combinations of yield, yield components, and fiber properties. The SP lines were tested for yield and fiber quality in 2005, 2006, and 2007 at six year-locations. SP179 and SP225 averaged 1221 and 1348 kg ha−1, respectively, for yield in three years' trials compared with 1359 kg ha−1 for ‘Deltapine 555BR’. Fiber bundle strength of these two lines is 233 and 228 kN m kg−1, respectively, compared with 227 kN m kg−1 for ‘FiberMax 960B2R’ (FM960B2R). Yields of SP156, SP177, and SP205 are at least 7% higher than the average, 965 kg ha−1, of FM960B2R and ‘Phytogen 72’ (PHY72). Strength of SP156, SP177, and SP205 is 241, 238, and 236 kN m kg−1, respectively, compared with 241 kN m kg−1, the average of FM960B2R and PHY72. Span length and short fiber content in these lines are also comparable to FM960B2R and PHY72.

  Please view the pdf by using the Full Text (PDF) link under 'View' to the left.

Copyright © 2009. Crop Science Society of AmericaCrop Science Society of America