Table 5 Impact of greywater treatment on morphological, physiological, and biochemical traits of crisphead lettuce under hydroponic system.

From: Sustainable hydroponic production using solar energy and treated greywater within the water-energy-food-environment nexus

Category

Parameter

Value (Mean ± SE)

Morphological Parameters

Head weight (g)

682.9 ± 9.634

Head height (cm)

17.7 ± 0.127

Head diameter (cm)

18.3 ± 0.267

Dry matter (%)

5.4 ± 0.220

Physiological Parameters

Chlorophyll a (Chl a)

0.790 ± 0.024

Chlorophyll b (Chl b)

0.232 ± 0.007

Total chlorophyll

1.023 ± 0.014

Carotene

0.220 ± 0.007

Total phenolic content

2.805 ± 0.323

Relative water content (RWC)

93.5 ± 0.089

Biochemical Parameters

Polyphenol oxidase (PPO, EU/ml)

0.694 ± 0.016

Superoxide dismutase (SOD, EU/ml)

37.823 ± 0.181

Malondialdehyde (MDA, nmol/g)

191.339 ± 0.002

Nitrogen (N, %)

3.044 ± 0.082

Phosphorus (P, %)

0.285 ± 0.007

Potassium (K, %)

2.557 ± 0.040