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Journal of Plant Registrations Abstract - GERMPLASM

Registration of Arkot 0502ne, Arkot 0504ne, Arkot 0506ne, and Arkot 0517HG Germplasm Lines of Cotton

 

This article in JPR

  1. Vol. 11 No. 1, p. 66-70
     
    Received: June 06, 2016
    Accepted: Aug 23, 2016
    Published: September 29, 2016


    * Corresponding author(s): fbourland@uaex.edu
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doi:10.3198/jpr2016.06.0031crg
  1. Fred M. Bourland *a and
  2. Don C. Jonesb
  1. a Univ. of Arkansas Division of Agriculture Northeast Research and Extension Center, P.O. Box 48, Keiser, AR 72351
    b Cotton Inc., 6399 Weston Pkwy., Cary, NC 27513

Abstract

Upland cotton (Gossypium hirsutum L.) production may be enhanced by incorporating host plant resistance traits into improved lines. Arkansas Agricultural Experiment Station has released four germplasm lines of upland cotton, designated as Arkot 0502ne (Reg. No. GP-1007, PI 677330), Arkot 0504ne (Reg. No. GP-1008, PI 677331), Arkot 0506ne (Reg. No. GP-1009, PI 677332), and Arkot 0517HG (Reg. No. GP-1010, PI 667333), which were bred to improve the efficiency of yield production. Arkot 0502ne, Arkot 0504ne, and Arkot 0506ne are nectariless lines that were derived from crossing Arkot 9608ne with JAJO 1145ne, Arkot 9314, and Arkot 9513, respectively. Arkot 0517HG, derived from a cross of Arkot 9304b with Arkot 9513, possesses the high-glanding trait. The nectariless trait infers some resistance to tarnished plant bugs, while the high-glanding trait infers some resistance to lepidopterous insect pests. All four lines were compared to ‘DP 393’ and ‘UA48’ over 5 yr and four test sites in Arkansas. Over all test sites, lint yields of the four lines were equal to DP 393 and exceeded UA48. The lines differed with respect to yield components and other morphological traits. All four lines displayed high resistance to bacterial blight and were equal to or more resistant to Verticillium wilt and tarnished plant bug than check cultivars. Fiber quality scores of all four lines exceeded that of DP 393 but were lower than UA48. All four lines generally displayed high yielding ability, specific host plant resistance traits, early maturity, and acceptable fiber quality.

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