Table 3 The changes of moisture content and conventional chemical components in tobacco leaves under different curing time.

Upper leaves

0

73.77 ± 2.51^a

2.51 ± 0.23^b

1.67 ± 0.16^b

4.95 ± 0.85^b

7.35 ± 1.07^d

31.61 ± 1.08^a

24

74.18 ± 0.63^a

3.15 ± 0.16^a

1.71 ± 0.06^ab

17.27 ± 1.77^a

20.38 ± 2.05^c

18.70 ± 2.44^b

48

69.00 ± 2.73^a

3.27 ± 0.52^a

1.86 ± 0.21^ab

18.46 ± 0.50^a

24.47 ± 1.39^b

11.06 ± 1.34^c

60

57.55 ± 5.17^b

3.53 ± 0.31^a

1.93 ± 0.08^a

16.87 ± 1.53^a

24.81 ± 0.68^b

7.71 ± 1.08^cd

72

38.72 ± 3.28^c

3.22 ± 0.48^a

1.79 ± 0.13^ab

18.64 ± 1.31^a

28.59 ± 1.24^a

6.06 ± 1.71^d

84

25.79 ± 4.78^d

3.18 ± 0.15^a

1.85 ± 0.10^ab

17.70 ± 1.73^a

28.89 ± 1.42^a

5.90 ± 0.70^d

96

15.65 ± 3.08^e

3.34 ± 0.36^a

1.84 ± 0.08^ab

19.40 ± 1.20^a

28.28 ± 1.27^a

5.86 ± 1.03^d

108

9.71 ± 0.78^f

3.34 ± 0.42^a

1.82 ± 0.07^ab

19.06 ± 2.10^a

28.00 ± 1.51^a

5.28 ± 0.23^d

120

7.84 ± 0.73^f

3.00 ± 0.29^ab

1.80 ± 0.08^ab

19.18 ± 0.82^a

29.07 ± 0.56^a

6.29 ± 0.66^d

132

6.34 ± 0.27^f

3.35 ± 0.25^a

1.91 ± 0.09^a

17.69 ± 0.54^a

27.79 ± 0.75^a

4.82 ± 1.00^d

Middle leaves

0

72.31 ± 1.13^ab

1.85 ± 0.14^d

1.37 ± 0.06^b

5.99 ± 1.34^c

7.56 ± 1.34^d

35.22 ± 0.93^a

24

75.22 ± 2.43^a

1.93 ± 0.30^cd

1.40 ± 0.05^b

22.07 ± 0.92^b

25.77 ± 1.75^c

22.44 ± 1.43^b

48

68.61 ± 2.35^b

2.12 ± 0.49^bcd

1.41 ± 0.19^b

27.12 ± 1.44^a

35.58 ± 1.59^b

10.38 ± 2.76^c

60

59.61 ± 1.70^c

2.18 ± 0.17^abcd

1.53 ± 0.06^ab

25.90 ± 0.11^a

36.30 ± 2.25^b

6.64 ± 1.30^d

72

55.48 ± 0.84^c

2.61 ± 0.13^a

1.63 ± 0.08^a

25.09 ± 1.56^ab

35.77 ± 2.10^b

6.54 ± 0.19^de

84

34.57 ± 1.49^d

2.32 ± 0.30^abc

1.51 ± 0.10^ab

27.86 ± 2.34^a

40.99 ± 1.33^a

4.28 ± 0.36^de

96

26.50 ± 3.78^e

2.35 ± 0.17^abc

1.58 ± 0.09^ab

26.15 ± 0.89^a

38.82 ± 1.33^ab

4.29 ± 0.19^de

108

21.17 ± 1.97^f

2.44 ± 0.13^ab

1.68 ± 0.11^a

24.49 ± 1.59^ab

37.91 ± 2.16^ab

5.14 ± 1.02^de

120

20.46 ± 2.23^f

2.28 ± 0.09^abcd

1.65 ± 0.07^a

25.38 ± 1.43^ab

39.21 ± 1.57^ab

4.06 ± 0.75^de

132

18.26 ± 2.42^f

2.38 ± 0.15^abc

1.63 ± 0.22^a

24.76 ± 2.67^ab

37.71 ± 3.20^ab

3.56 ± 1.15^e