Abstract
Seedling growth and ectomycorrhizal colonization of Pinus radiata and P. patula seedlings growing in nursery containers with two application rates of spores of 3 different ectomycorrhizal fungi, Helvella lacunosa, Russula brevipes and Lycoperdon perlatum, was evaluated at 5 and 12 months. At 5 months of growth P. patula was less susceptible than P. radiata to colonization by fungi and percentage of ectomycorrhizal feeder roots was lower in all treatments. Growth response (either volume or top dry weight) to treatments was different among pines species. A significant seedling growth response was observed after 5 months in both pine species with the double rate of spores of either H. lacunosa or L. perlatum; this response was sustained in P. patula at 12 months with Helvella only. P. radiata seedlings inoculated with the double rate of spores of R. brevipes showed a significant growth response at 12 months.
Resumen
Se estudió en dos intervalos del crecimiento de Pinus patula y P. radiata, en envases de vivero, la inoculación con dos dosis de esporas de los hongos ectomicorrícicos Helvella lacunosa, Russula brevipes y Lycoperdon perlatum. P. patula se mostró, en la temprana edad (5 meses) menos susceptible a la colonización radicular por bongos; la proporción de sus raicillas micorrizadas es, en todos los tratamientos, mas baja que la del otro pino. La respuesta a la inoculación (volumen o peso seco) es diferente en las dos especies de pinos; a los 5 meses se observa en ambos un respuesta significativa a la doble dosis de esporas tanto de Helvella como de Lycoperdon. Esta respuesta es consistente a los 12 meses solo en P.patula inoculado con esporas de Helvella; en esta misma etapa, las plantulas de P.radiata inoculadas con la doble dosis de esporas de Russula mostraron una respuesta significativa en su crecimiento.
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Martinez-Amores, E., Valdes, M. & Quintos, M. Seedling growth and ectomycorrhizal colonization of Pinus patula and P. radiata inoculated with spores of Helvella lacunosa, Russula brevipes or Lycoperdon perlatum . New Forest 4, 237–245 (1990). https://doi.org/10.1007/BF00119203
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DOI: https://doi.org/10.1007/BF00119203