Table 4 Average values of total fresh and dry matter (GFR and TDM in g), number of leaves (NL), stem diameter (SD in mm), stem length (SL in mm), leaf area (LA in cm2) and chlorophyll index (SPAD) of purple lettuce cultivated in different photo-selective screens and in full sun.

From: Photo-selective shading screens as a cover for production of purple lettuce

Treatments

TFM

TDM

NL

SD

SL

LA

SPAD

T-Red

141.8 a

7.3 a

16.9 a

17.2 a

98.1 a

1563.5 a

22.0 b

T-Black

134.9 ab

6.5 ab

17.1 a

16.3 a

102.5 a

1428.1 ab

22.9 b

T-Silver

127.9 ab

6.0 ab

16.2 a

16.7 a

92.6 a

1367.8 ab

22.3 b

T-Control

105.2 b

5.6 b

15.7 a

16.8 a

69.0 b

1137.7 b

27.0 a

CV%

15.56

13.79

13.76

10.12

11.34

16.42

8.22

  1. Means followed by the same letter do not differ from each other at the 5% probability level (p < 0.05) by the Tukey test.
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