Data from: Limitation of seedling growth by potassium and magnesium supply for two ectomycorrhizal tree species of a Central African rain forest and its implication for their recruitment

Neba GA, Newbery DM, Chuyong GB

Date Published: December 18, 2015

DOI: http://dx.doi.org/10.5061/dryad.k7729

 

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Title Growth over three periods
Downloaded 21 times
Description Height (ht, in cm), and numbers of leaves (lvn) and branches (brn), over three periods of the experiment for seedlings of Microberlinia bisulcata (Mb) and Tetraberlinia bifoliolata (Tb). Blank cells are where plants were lost or died. Periods 1 to 3 were measured at nine, five and five dates respectively. The design consisted of 16 treatments (trmt), in four blocks (block), with a 4 x 4 factorial arrangement of the two addition factors potassium (K) and magnesium (Mg), for which level numbers are shown (‘1,1’ was the control). There were four replicates of each treatment per species and block at the start, and one was removed at each of the tree harvests (H1, H2 and H3). The far right columns list individual plant ‘shock’ values (see main paper) used as a covariate. Mean of growth variables for treatments and harvests are given in Table S1 of the paper.
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Title Harvest dry masses and leaf nutrients
Downloaded 17 times
Description Height (cm), numbers of leaves and branches, basal stem diameter (mm), leaf area (cm2; only H2 and H3) for each of the three harvests (Harv 1-3); oven-dried mass (DM, in g) for leaves, roots, stems and totals for each plant; and the nutrient concentrations of five macro-elements (P, N, Ca, K, and Mg; in µg g-1 DM) in their leaves (L), for seedlings of Microberlinia bisulcata (Mb) and Tetraberlinia bifoliolata (Tb). Blank cells are where plants had died and there was no material for analysis. The corresponding values for the covariate ‘shock’ are also given. Design and layout: as described for ‘Mb&Tb_growth1-3.xlsx’. Means of dry masses and nutrient concentrations for treatments and harvests are given in Tables 1 and 2 of the paper.
Download Mb&Tb_harv&nutrL.xlsx (57.77 Kb)
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Title Root and shoot nutrients
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Description Nutrient concentrations of five macro-elements (P, N, Ca, K, and Mg; in µg g-1 DM) in roots (R) and stems (S) at harvest 2 for seedlings of Microberlinia bisulcata (Mb) and Tetraberlinia bifoliolata (Tb): details are as for leaves in ‘Mb&Tb_harv&nutrL.xlsx’. Blank cells are where plants had died and there was no material for analysis. Design and layout: as described for ‘Mb&Tb_growth1-3.xlsx’. Means of nutrient concentrations for treatments and harvests are given in Tables S2a, b of the paper.
Download Mb&Tb_nutrR&S.xlsx (21.50 Kb)
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Title Nutrients in pot soils
Downloaded 12 times
Description Concentrations of extractable cations (Ca, K and Mg, as µg g-1 dry weight) in pot soils at harvests (Harv) 1 and 2, taken at two positions (Pos: U, upper; L, lower). Design and layout: as described for ‘Mb&Tb_growth1-3.xlsx’. Means of cation concentrations for treatments, positions and harvests are given in Tables S3a, b of the paper.
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When using this data, please cite the original publication:

Neba GA, Newbery DM, Chuyong GB (2016) Limitation of seedling growth by potassium and magnesium supply for two ectomycorrhizal tree species of a Central African rain forest and its implication for their recruitment. Ecology and Evolution 6(1): 125-142. http://dx.doi.org/10.1002/ece3.1835

Additionally, please cite the Dryad data package:

Neba GA, Newbery DM, Chuyong GB (2015) Data from: Limitation of seedling growth by potassium and magnesium supply for two ectomycorrhizal tree species of a Central African rain forest and its implication for their recruitment. Dryad Digital Repository. http://dx.doi.org/10.5061/dryad.k7729
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