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This article in CS

  1. Vol. 16 No. 5, p. 728-730
     
    Received: Mar 12, 1976


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doi:10.2135/cropsci1976.0011183X001600050034x

Resistance of Male Sterile Wheat to Ergot as Related to Pollination and Host Genotype1

  1. L. C. Darlington and
  2. D. E. Mathre2

Abstract

Abstract

This study was undertaken to determine if susceptibility of cytoplasmically male sterile spring wheat (Triticum aestivum L. em Thell.) to ergot [Claviceps purpurea (Fr.) Tul.] is influenced by pollination and host genotype.

Inoculation at various times after hand pollination showed that resistance was established in some lines within a few hours after pollination. The development of resistance after pollination was more rapid in some lines than others, but most lines were nearly immune by 7 days after pollination. Inoculation of diallel crosses between lines that developed resistance quickly after pollination and those that developed resistance slowly indicated that the resistance factor was maternally controlled.

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