Table 2 Mean values of total fresh and dry matter (MPT and MDT in g), number of leaves (NL), stem diameter (SD in mm), stem length (SL in mm), leaf area (LA in cm2) and leaf chlorophyll index (SPAD) of purple lettuce grown in different seasons of the year.

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

Seasons

TFM

TDM

NL

SD

SL

LA

SPAD

Spring

91.9 b

5.6 b

13.9 b

12.5 b

67.8 b

1005.6 b

26.6 a

Autumn

163.0 a

7.1 a

19.0 a

21.0 a

113.3 a

1742.9 a

20.5 b

CV%

12.24

16.71

8.01

5.36

11.49

12.31

8.89

  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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