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This article in JPR

  1. Vol. 8 No. 2, p. 145-149
     
    Received: June 17, 2013
    Published: February 21, 2014


    * Corresponding author(s): pchen@uark.edu
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doi:10.3198/jpr2013.06.0030crc

Registration of ‘UA 5612’ Soybean

  1. P. Chen *a,
  2. C. P. Graya,
  3. T. L. Harta,
  4. M. Orazalya,
  5. J. C. Rupeb,
  6. D. G. Dombekc,
  7. R. D. Bondc,
  8. T. Kirkpatrickb,
  9. R. T. Robbinsb and
  10. L. O. Ashlockd
  1. a Dep. of Crop, Soil, and Environmental Sciences, Univ. of Arkansas, Fayetteville, AR 72701
    b Dep. of Plant Pathology, Univ. of Arkansas, Fayetteville, AR 72701
    c Arkansas Crop Variety Improvement Program, Univ. of Arkansas, 1091 W. Cassatt St., Fayetteville, AR 72704
    d Division of Agriculture, Univ. of Arkansas, 2301 S. University Ave., Little Rock, AR 72204

Abstract

As herbicide-tolerant cultivars still dominate the current soybean [Glycine max (L.) Merr.] seed market, conventional cultivars provide an alternative for soybean producers to use in cultivar rotation for weed control, to save seed cost, and to capture additional value for non–genetically modified (GM) crops. ‘UA 5612’ soybean [Glycine max (L.) Merr.] (Reg. No. CV-513, PI 667740) was developed by the University of Arkansas and released as a high-yielding conventional cultivar. The objective of this release is to provide farmers with a cultivar choice for non-GM soybean. UA 5612 is derived from a single F2 plant selection from the cross of two conventional breeding lines; R97-1650 and 98601. Seed was bulked in the F2:3 generation for subsequent yield tests and release. UA 5612 was evaluated in 172 environments in southern states from 2005 to 2011. It demonstrated excellent adaptation and strong performance in all environments, with yields better than or comparable to the maturity group (MG) V checks. Across all years and locations, UA 5612 produced 193 kg ha−1 more yield than the average of the check cultivars. UA 5612 exhibits a relative maturity of 5.6, determinate growth habit, purple flower color, gray pubescence, and tan pod wall. It is moderately resistant to southern stem canker, frogeye leaf spot, and sudden death syndrome. UA 5612 will fulfill the demand for a high-yielding conventional cultivar in the mid-south region targeted for the non-GM market with a potential production premium.

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