Table 3 Effects of elevated CO₂ concentrations on the morphological and anatomical traits of soybean

35.69 ± 3.04 (c)

39.14 ± 3.43 (ab)

38.59 ± 34.46 (b)

42.03 ± 5.23 (a)

33.38 ± 6.24 (d)

29.76 ± 4.47 (e)

41.15 ± 7.35 (a)

9.35 ± 1.76 (b)

8.93 ± 1.78 (b)

7.90 ± 31.22 (de)

9.00 ± 1.50 (bc)

7.25 ± 1.29 (e)

10.40 ± 1.18 (a)

8.13 ± 2.00 (cd)

303.3 ± 39.6 (b)

348.7 ± 39.4 (a)

275.0 ± 76.2 (c)

328.0 ± 80.9 (ab)

213.1 ± 46.3 (d)

232.1 ± 60.5 (d)

303.5 ± 88.9 (bc)

83.0 ± 6.4 (c)

95.1 ± 12.6 (b)

80.6 ± 9.9 (c)

99.3 ± 12.7 (ab)

71.4 ± 9.4 (d)

67.6 ± 10.2 (d)

100.9 ± 19.3 (a)

20.72 ± 2.43 (cd)

24.85 ± 4.00 (ab)

22.61 ± 5.45 (bc)

27.36 ± 7.75 (a)

19.87 ± 3.11 (d)

20.15 ± 2.87 (d)

20.07 ± 5.11 (d)

11.91 ± 3.13 (b)

12.04 ± 3.75 (a)

9.39 ± 5.44 (d)

10.54 ± 3.71 (ac)

8.28 ± 2.14 (e)

12.68 ± 2.15 (ad)

8.46 ± 2.40 (bef)

207.8 ± 57.6 (b)

265.3 ± 88.4 (a)

192.0 ± 64.5 (b)

258.9 ± 24.5 (a)

150.0 ± 43.8 (c)

215.6 ± 53.0 (b)

177.2 ± 67.7 (b)

86.2 ± 13.2 (bc)

76.88 ± 13.8 (a)

60.6 ± 13.3 (c)

71.4 ± 21.7 (ab)

55.5 ± 12.0 (d)

55.6 ± 13.7 (d)

63.1 ± 15.5 (bcd)

1.88 ± 0.68 (b)

2.52 ± 0.23 (a)

2.59 ± 0.64 (ab)

2.77 ± 0.54 (a)

2.13 ± 0.60 (abc)

1.90 ± 0.49 (bc)

1.75 ± 0.25 (c)

103.5 ± 11.0 (c)

126.9 ± 9.9 (a)

121.5 ± 9.9 (b)

125.4 ± 12.7 (b)

108.7 ± 14.1 (c)

108.0 ± 12.2 (c)

106.9 ± 11.1 (c)