Summary
When white clover plants were self-pollinated, 75% of a 143-plant population did not set seed. Plants which did set small numbers of seed probably did so as a result of pseudo-self-compatibility. One highly self-compatible plant was selected from the breeding materials. The S2 progeny of this plant was autogamous and genetically fixed for morphology and isozyme patterns. Genetic analyses of self-compatibility were conducted as far as the F3 progeny. It was concluded from these data that self-compatibility was inherited in a simple Mendelian way and that plants homozygous for self-compatibility were obtained. There was no correlation between presence or absence of self-compatibility and growth vigor. The possibility of application of self-compatible plants to recurrent selection procedures is outlined and the utilization of self-compatible plants in white clover breeding programs is discussed.
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Yamada, T., Fukuoka, H. & Wakamatsu, T. Recurrent selection programs for white clover (Trifolium repens L.) using self-compatible plants. I. Selection of self-compatible plants and inheritance of a self-compatibility factor. Euphytica 44, 167–172 (1989). https://doi.org/10.1007/BF00022613
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DOI: https://doi.org/10.1007/BF00022613