The effect of nitrogen on stolon and ramet growth in four genotypes of Fragaria chiloensis L. |
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| Affiliation: | 1. United States Department of Agriculture, Agricultural Research Service (ARS), Appalachian Fruit Research Station, 45 Wiltshire Road, Kearneysville, WV 25430 9425, USA;2. Department of Biology, Hood College, Frederick, MD 21701, USA;1. Scion, Private Bag 3020, Rotorua 3046, New Zealand;2. VTT Technical Research Centre of Finland Ltd, P.O. Box 1000, FI-02044 VTT, Espoo, Finland;1. Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan;2. Faculty of Agriculture, Meijo University, Nagoya, Aichi 468‑8502, Japan;3. Department of Chemistry, Graduate School of Science, Kobe University, Nada, Kobe, Hyogo 657-8501, Japan;1. State Key Laboratory for Manufacturing Systems Engineering, School of Mechanical Engineering, Xi''an Jiaotong University, Xi''an 710049, China;2. State Key Laboratory for Manufacturing Systems Engineering, Fuli School of Food Equipment Engineering and Science, Xi''an Jiaotong University, Xi''an 710049, China;1. Department of Environmental Horticulture, Dankook University, Cheonan, Chungnam 330-714, Korea;2. US Department of Agriculture, Agricultural Research Service, Floral and Nursery Plants Research Unit, Beltsville, MD 20705, USA;1. Programa de Pós-Graduação em Botânica, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil;2. Faculdade de Biociências, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil;3. Conservatoire et Jardin Botaniques de la Ville de Genève, Chambésy, Switzerland |
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| Abstract: | Plant foraging response is a process in which clonal plants proliferate in nutrient-rich sites by shortening stolon length and increasing ramet density. Conversely, stolon length increases and ramet density decreases in nutrient-poor sites. Four genotypes of strawberry (Fragaria chiloensis (L.) Duch.) were grown in a greenhouse for 10 weeks and treated with different concentrations of nitrogen. Genotypes differed in plant size, stolon and ramet production, and nitrogen distribution between parent and ramets. Genotype Q18 were the smallest plants with the greatest number of stolons and ramets, typical of the phalanx morphology. The other genotypes had fewer but longer stolons, typical of the guerrilla morphology. Number of stolons and ramet density increased with increased N more in Genotype Q18 than the other genotypes. Results indicate that vegetative growth changed in response to increasing N treatment of the parent plant by shortening the average stolon length, increasing the number of stolons, and increasing the number of ramets while maintaining total stolon length. Foraging response characteristics were observed in strawberry but varied among genotypes. |
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