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Table 4 Effects of the leaf age, year, and their interactions on chemical compositions and sensory evaluation score

From: Dynamic changes in physiological and biochemical properties of flue-cured tobacco of different leaf ages during flue-curing and their effects on yield and quality

Leaf age (A)

Year (Y)

DF

Total sugar content (%)

Reducing sugar content (%)

Nitrogen content (%)

Nicotine content (%)

Starch content (%)

Polyphenol content (mg/g)

Sensory evaluation score

123 DAT

  

27.33 a

24.41 a

2.46 b

3.57 a*

6.3 a*

26.21 a

90.5 a

130 DAT

2016

 

28.19 a

26.08 a*

2.05 b

3.09 b*

6.62 a*

19.81 b*

85 b

116 DAT

2017

 

29.56 a*

22.21 a*

2.32 a*

2.19 a*

2.65 b*

29.87 a*

90 a

123 DAT

26.19 a

22.45 a

2.18 a

2.38 a*

4.43 a*

31.98 a

91 a

130 DAT

29.73 a

20.03 a*

2.26 a

2.32 a*

2.81 b*

28.94 a*

85 b

A

 

2

**

**

**

**

**

**

**

Y

 

1

**

NS

**

**

**

**

NS

A × Y

 

2

**

**

**

**

**

NS

NS

  1. Note: Lowercase letters represent that differences are significant in different treatments in the same year (P < 0.05); * indicates the significant difference in the same treatment in different years (P < 0.05); ** denotes the significant differences of each factor and their interactions on this index