Growth parameters for tree seedlings in a lowland tropical forest in Panama, subject to experimental soil warming. The experiment is situated at the Soil Warming Experiment in Lowland Tropical Rainforest (SWELTR) on Barro Colorado Island in Panama, where the whole soil profile is subject to warming by 4-degrees. Seedling species are Inga laurina, Ormosia macrocalyx, Tachigali versicolor, Lacmellea panamensis, Protium pittieri and Virola surinamensis. Data are seedling parameters: relative growth rates, height change over time, herbivory index, light-saturated photosynthesis (Amax), leaf chlorophyll concentration, light (photosynthetic photon flux density; PPFD). We also determined soil nutrient (N and P) mineralisation for the same period using in situ ion-exchange resins each month. Data were collected over the period 2016 to 2020, following 3 years of soil warming. Photosynthesis and leaf chlorophyll content index data were collected in field campaigns during 2019 and 2022, respectively. Full details about this dataset can be found at https://doi.org/10.5285/3a4aabba-e790-4ac3-b845-936790768330

This dataset consists of field measurements of Pseudogymnoascus roseus DNA concentrations in soil and three edaphic factors (soil temperature, water potential and snow depth) at Mars Oasis, Alexander Island, from 2009 to 2012, under different temperature, irrigation and substrate (glucose, glycine and tryptone soy broth) treatments. Laboratory measurements of hyphal extension rates, conidial germination, numbers of conidia produced per colony of fungus and specific enzyme activities of three P. roseus isolates are also included.