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Cleistogamy in wheat: genetic control and the effect of environmental conditions

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Abstract

Wheat flowers are generally observed first in the middle of the spike. After pollination, the anthers grow out of the floret. In general, wheat flowers are open (chasmogamy). However, in several varieties the flowers remain closed (cleistogamy). In this study, we surveyed the genetic control of and influence of environmental conditions on cleistogamy.

It appeared that cleistogamy was controlled by three recessive genes and cleistogamous plants tended to have short spikes. Although scarcely any extruded anthers were on field-grown cleistogamous plants, culture of spikes at 10 °C or 20 °C yielded an increased number of extruded anthers. The number of extruded anthers tended to be higher under illumination than in darkness, but the difference was not significant.

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Authors and Affiliations

  1. Faculty of Bioindustry, Tokyo University of Agriculture, Abashiri, 099-24, Japan

    K. Ueno & H. Itoh

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  1. K. Ueno
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  2. H. Itoh
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Ueno, K., Itoh, H. Cleistogamy in wheat: genetic control and the effect of environmental conditions. CEREAL RESEARCH COMMUNICATIONS 25, 185–189 (1997). https://doi.org/10.1007/BF03543455

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  • DOI: https://doi.org/10.1007/BF03543455

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