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Crop Science Abstract -

Characteristics and Performance of Male-Sterile and Hybrid Seed Produced by Cross-Pollination in Hard Red Spring Wheat1


This article in CS

  1. Vol. 26 No. 1, p. 55-57
    Received: Mar 5, 1985

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  1. K. M. Johnson and
  2. K. A. Lucken2



Wheat(Triticum aestivum L.) seed produced by cross-pollination on male-sterile plants in male-sterile increase and hybrid seed production blocks was characterized and evaluated using several laboratory and field tests. Male steriles (A-lines) in both types of crossing blocks had lower seed sets and lower seed yields than their pollinators (maintainers or B-lines and restorers or R-lines). Seed produced by cross-pollination on A-lines had lower test weight, lower germination percentage and less seedling growth, but higher seed weight, higher protein percentage, and higher leachate conductivity than selfed seed produced on their respective B- or R-lines. The crossed seed germinated and grew more slowly under osmotic stress than selfed seed but showed no germination differences after exposure to high and low temperature stresses.

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