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This article in CS

  1. Vol. 46 No. 5, p. 2013-2014
     
    Received: Oct 3, 2005


    * Corresponding author(s): amaas@tifton.usda.gov
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doi:10.2135/cropsci2005.10.0349

Removal of Apical Dominant Shoot for Disease Resistance Screening Increases Seed Yield of Container-Grown Plants

  1. Andrea L. Maas *a,
  2. Kenton E. Dashiellb and
  3. Hassan A. Meloukc
  1. a USDA-ARS, Coastal Plain Exp. Sta., P.O. Box 748, Tifton GA 31794
    b USDA-ARS, Northern Grain Insects Res. Lab., Brookings, SD 57006
    c USDA-ARS, Stillwater, OK 74078

Abstract

Host plant resistance is generally included as a means of mitigating production losses in peanut (Arachis hypogaea L.). Testing methods which do not impact yield are of particular value in the development of cultivars. The objectives of this research were to determine the viable seed yield of container-grown peanut plants and the impact of removing the apical dominant shoot on seed set, for use in disease testing. Two resistant cultivars, Tamspan 90 and Southwest Runner, and two susceptible cultivars, Okrun and Flavor Runner 458, were crossed in a diallel to produce F1 seed. A total of 191 F1 plants were evaluated in the greenhouse under two treatments, apical shoot removed or not removed, in 2003 to 2005. The mean seed set of the control group (apical shoot not removed) was 12 seed per plant compared with 15 seed per plant when the apical shoot was removed.

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Copyright © 2006. Crop Science Society of AmericaCrop Science Society of America