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Abstract

 

This article in AJ

  1. Vol. 50 No. 7, p. 393-395
     
    Received: Dec 9, 1957


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doi:10.2134/agronj1958.00021962005000070013x

Mass Hybridization Techniques as Applied to Standard Crested Wheatgrass, Agropyron Desertorum (Fisch.) Shult.1

  1. James E. Hansen and
  2. Douglas R. Dewey2

Synopsis

Synopsis

Bagged heads of standard crested wheatgrass cross-pollinated by circulating air in the bags daily during anthesis produced seed yields comparable to those from open pollination. Detaching male and/or female culms decreased seed set when cross-pollinated under bags. Seed-set was reduced 66% by the hot-water emasculation effect on pollen. Approximately 25% of the ovaries did not function as the result of hot-water emasculation. Tap water sustained detached culms as well as or better than any of four other solutions.

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