Article Figures & Data
Tables
- Table 1.
Mean height growth (cm) and general appearance of seedlings from 3 species grown under 3 different conditions in 1992 and 1993.
Growth conditions Height growth General appearance 1992 1993 1992 1993 Roadside soil, pots 25.6 b1 41.2 c 2.82b 5.8 b Peat, pots 86.8 a 91.9 b 5.8 a 6.9 a Peat, beds 84.3 a 119.4a 5.7 a 7.0 a - Table 2.
Mean height increase (cm) and percentage growth differential in roadside soil compared to peat for Acer platanoides, Aesculus hippocastanum and Betula pendula, 1992 and 1993.
Year Height increase Peat Roadside soil Percent1 A. platanoides 1992 129.6 a2 21.6 b 83.3 a 1993 123.3 a 43.0 a 65.1 b A. hippocastanum 1992 26.2 b 16.7 a 36.3 b 1993 31.6 a 17.4 a 44.9 a B. pendula 1992 101.6 b 60.9 b 40.1 a 1993 140.7 a 97.6 a 30.6 b Mean 88.9 31.6 64.4 - Table 3.
Height growth (cm) and percentage growth differential in roadside soil compared to peat in different half-sib families of Acer platanoides, 1992 and 1993. The seed sources were of different vigor.
Half-sib family Vigor of seed source Peat Height growth Roadside soil Percentage1 1992 1993 1992 1993 1992 1993 A 92 117.6 121.1 23.0 49.3 80.4 59.3 B 9 126.4 110.6 23.8 69.4 81.2 37.3 I 9 92.6 — 10.9 — 88.2 — E 7 108.3 108.0 22.0 41.3 79.7 61.8 G 7 101.7 143.3 13.3 26.1 86.9 81.8 L 7 — 142.4 — 35.3 — 75.2 F 6 100.8 126.7 13.5 42.8 86.6 66.2 H 6 113.7 168.5 24.1 23.9 78.8 85.8 D 5 115.2 132.3 22.2 47.3 80.7 64.2 C 4 97.2 78.0 23.2 39.1 76.1 49.9 J 4 119.3 — 25.1 — 79.0 — K 3 — 108.3 — 19.0 — 82.5 - Table 4.
Height growth (cm) and percentage growth differential in roadside soil compared to peat in different progenies of Aesculus hippocastanum, 1992 and 1993. The seed sources were of different vigor.
Half-sib family Vigor of seed source Peat Height growth Roadside soil Percentage1 1992 1993 1992 1993 1992 1993 G 92 21.1 32.6 15.4 22.7 27.0 30.4 K 9 — 18.5 — 11.9 — 35.7 A 8 29.8 34.2 17.9 17.0 39.9 50.3 F 8 27.8 38.3 17.2 21.0 38.1 45.2 H 8 27.0 53.5 21.9 21.1 18.9 60.6 B 6 34.0 35.8 22.3 16.9 34.4 52.8 C 6 23.1 26.5 14.2 13.0 38.5 50.9 E 5 22.9 18.5 14.1 11.9 38.4 35.7 J 5 16.3 — 15.2 — 6.7 — L 4 — 25.8 — 14.9 — 42.2 I 4 27.9 — 15.1 — 45.9 — D 3 12.6 12.0 11.3 10.9 10.3 9.2 ↵1 Growth differential (%) in roadside soil compared to peat.
2 Scale 0—9.
- Table 5.
Height growth (cm) and percentage growth differential in roadside soil compared to peat in different half-sib families of Betula pendula, 1992 and 1993. The seed sources were of different vigor.
Half-sib family Vigor of seed source Peat Height growth Roadside soil Percentage1 1992 1993 1992 1993 1992 1993 A 82 109.4 141.8 73.6 100.0 32.7 29.5 E 8 107.0 — 68.0 — 36.4 — B 7 103.6 149.0 63.4 91.7 38.8 38.5 C 6 108.9 134.8 69.0 105.8 36.6 21.5 D 6 65.2 — 40.6 — 37.7 — F 5 — 140.9 88.3 — 37.3 - Table 6.
Electrical conductivity (EC), pH, chemical concentrations, and bulk density of the growth media—roadside soil (dust) and peat.
EC1 mg/100 ml. mg/L kg/dm3 pH P-AL K-AL Mg-AL Ca-AL Na-AL Mn Pb Cu Zn Fe Cd Density Peat 1.9 5.4 19 29 21 329 3 18.0 6.0 6.0 12.0 — 0.11 0.25 Roadside soil 1.1 7.9 2 8 17 1130 6 2.3 224.0 9.8 70.2 46.5 0.56 1.19 ↵1 mmhos cm-1 (mS).
Fostad and Pedersen: Progeny Testing in Street Trees
- Table 7.
Mean chemical leaf concentrations for Acer platanoides, Aesculus hippocastanum, and Betula pendula.
g/100 g dry weight mg/kg dry weight N P K Ca Mg Na Cl Fe Cu Mn Zn AI A. platanoides 2.08 a1 0.45 a 0.23 a 1.86 b 0.25 b 0.10 a 0.71a 108.9 a 7.07 a 892.3 a 55.5 b 110.7 a A. hippocastanum 1.92 a 0.23 a 1.60 ab 2.29 a 0.27 ab 0.08 ab 0.54 b 106.1 7.30 a 397.3 a 28.2 b 74.6 a B. pendula 1.41 b 0.21 a 1.31 b 1.11 c 0.32 a 0.04 b 0.18 c 121.2 a 5.93 a 772.1 a 305.9 a 156.8 a ↵1 Values followed by the same letter within a column are not significantly different at P = 0.05 according to Ryan-Einot-Gabriel-Welsh (REGWQ) multiple-range test.