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Table 4 Effects of fertilizers on tissue density at harvest

From: Efficiency and effectiveness of vitamin C-substrate organo-mineral straight fertilizer in lettuce (Lactuca sativa L.)

Treatment groups

Root

Stem

Leaf

Fresh weight (g/plant)

Dry weight (g/plant)

Fresh weight (g/plant)

Dry weight (g/plant)

Fresh weight (g/plant)

Dry weight (g/plant)

Control (water only)

0.5 ± 0.01b

0.07 ± 0.01c

0.1 ± 0.1c

0.01 ± 0.001b

5.80 ± 0.8c

0.40 ± 0.1c

r-Ringer (1/2000)

1.0 ± 0.2a

0.13 ± 0.03ab

0.3 ± 0.1bc

0.01 ± 0.001b

12.9 ± 5.0b

0.70 ± 0.2b

AGH-Ringer (1/2000)

0.9 ± 0.1a

0.1 ± 0.01b

0.2 ± 0.1bc

0.01 ± 0.001b

10.9 ± 1.6bc

0.60 ± 0.1b

AGH-Ringer (1/1000)

1.1 ± 0.2a

0.2 ± 0.03a

0.6 ± 0.02a

0.04 ± 0.001a

19.2 ± 3.8a

1.20 ± 0.2a

AGH-Ringer (1/500)

1.0 ± 0.1a

0.1 ± 0.02ab

0.3 ± 0.1b

0.02 ± 0.01b

13.0 ± 2.0b

0.90 ± 0.1b

  1. All data are expressed as mean ± standard deviation (n = 3). Different letters show a significant difference at p < 0.05 as determined by Duncan’s multiple range tests