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Regulation of reproduction in wild and cultivatedLycopersicon esculentum Mill. by vesicular-arbuscular mycorrhizal infection

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Summary

We examined how mycorrhizal infection byGlomus etunicatum Becker and Gerd. affected flowering phenology and components of reproduction in eight wild accessions and two cultivars ofLycopersicon esculentum Mill. We did this by performing a detailed demographic study of flower, fruit and seed production. Mycorrhizal infection had variable effects on the ten accessions. Infection significantly decreased the time taken to initiate flowering in some accessions. In addition, infection increased flowering duration in some accessions. In many accessions, infection significantly increased seed production, primarily by increasing the number of inflorescences and infructescences. In some accessions, mycorrhizal infection also increased the proportion of flowers that produced mature fruits or the number of seeds per fruit. Among accessions, shoot phosphorus content was correlated with seed productivity for both mycorrhizal and non-mycorrhizal plants. However, non-mycorrhizal plants produced more seed biomass per mg of shoot phosphorus than mycorrhizal plants.

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  1. David R. Bryla

    Present address: Department of Plant Pathology, University of California, 95616, Davis, CA, USA

Authors and Affiliations

  1. Department of Biology and Program in Ecology, The Pennsylvania State University, 16802, University Park, PA, USA

    David R. Bryla & Roger T. Koide

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  1. David R. Bryla
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  2. Roger T. Koide
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Bryla, D.R., Koide, R.T. Regulation of reproduction in wild and cultivatedLycopersicon esculentum Mill. by vesicular-arbuscular mycorrhizal infection. Oecologia 84, 74–81 (1990). https://doi.org/10.1007/BF00665598

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  • DOI: https://doi.org/10.1007/BF00665598

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