Effects of Root Cooling on Plant Growth and Fruit Quality of Cocktail Tomato during Two Consecutive Seasons

Table 4

Effects of root cooling on concentrations of elements of cocktail tomato fruits in two seasons.

2017-2018 winter

2018 summer

“Amoroso”

“Delioso”

“Amoroso”

“Delioso”

Control

Cool

p

Control

Cool

p

Control

Cool

p

Control

Cool

p

C (%)

44.16 ± 0.22

44.19 ± 0.25

0.858

43.5 ± 0.72

43.61 ± 0.51

0.768

45.81 ± 0.28

45.42 ± 0.13

0.017

45.63 ± 0.42

45.73 ± 0.45

0.696

N (%)

1.93 ± 0.21

1.85 ± 0.08

0.399

1.74 ± 0.12

1.53 ± 0.10

0.011

2.21 ± 0.11

1.97 ± 0.26

0.077

2.12 ± 0.18

2.03 ± 0.11

0.320

K (%)

4.36 ± 0.29

4.43 ± 0.10

0.582

4.68 ± 0.25

4.38 ± 0.54

0.254

3.01 ± 0.24

2.75 ± 0.26

0.107

3.29 ± 0.15

3.32 ± 0.27

0.797

P (%)

0.50 ± 0.03

0.48 ± 0.02

0.152

0.51 ± 0.03

0.43 ± 0.06

0.030

0.40 ± 0.03

0.34 ± 0.04

0.028

0.44 ± 0.03

0.40 ± 0.02

0.019

S (%)

0.15 ± 0.01

0.15 ± 0.01

0.284

0.15 ± 0.00

0.13 ± 0.01

0.004

0.19 ± 0.01

0.18 ± 0.02

0.839

0.20 ± 0.01

0.20 ± 0.02

0.749

Ca (%)

0.07 ± 0.01

0.06 ± 0.00

0.276

0.06 ± 0.01

0.05 ± 0.00

0.073

0.08 ± 0.01

0.09 ± 0.01

0.118

0.10 ± 0.01

0.09 ± 0.01

0.641

Mg (%)

0.10 ± 0.01

0.09 ± 0.01

0.585

0.10 ± 0.02

0.09 ± 0.01

0.265

0.08 ± 0.01

0.08 ± 0.01

0.866

0.09 ± 0.01

0.10 ± 0.01

0.027

Zn (mg/kg)

1943 ± 3.18

21.16 ± 2.84

0.343

22.05 ± 4.83

18.88 ± 2.51

0.194

21.16 ± 2.84

16.47 ± 2.75

0.016

21.68 ± 2.39

1811 ± 0.65

0.027

Fe (mg/kg)

53.10 ± 5.00

50.84 ± 8.24

0.582

53.4 ± 7.02

45.2 ± 4.60

0.042

—

—

—

—

Na (mg/kg)

148.16 ± 14.09

152.39 ± 9.86

0.562

179.06 ± 12.47

183.19 ± 19.43

0.672

82.18 ± 11.43

92.89 ± 15.61

0.208

91.79 ± 24.58

97.53 ± 40.74

0.775

Mn (mg/kg)

5.95 ± 0.50

547 ± 0.55

0.144

5.66 ± 1.52

4.91 ± 0.63

0.303

6.49 ± 1.50

4.93 ± 0.65

0.052

6.28 ± 0.67

5.40 ± 0.93

0.095

—, iron concentrations in 2018 summer were below the detection limit.. Significant differences () are indicated in bold.