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Table 6 The effect of Anabaena oryzae crude extracts (Grown on BG110 and 100% TSW) with optimum conc. of acetic acid (IAA) and Benzyl adenine (BA) (obtained from dose response curve) on Tomato plant

From: Enhancement of plant growth regulators production from microalgae cultivated in treated sewage wastewater (TSW)

Parameter Shoot Length (cm) Leaves, numbers Root initiation Branching Leaf expansion
Control (MS medium) 5.217 ± 0.469bcd 3.500 ± 0.674a  +  +  +  - -
DMSO 5.083 ± 0.925 cd 3.417 ± 0.669a  +  +  +  - -
IAA ( 0.5 ppm) 4.850 ± 0.454cde 3.083 ± 0.900ab  +  +  + 
 +  +  + 
- -
IAA (1.8 ppm) 6.850 ± 1.588a 3.583 ± 0.515 a  +  +  + 
 +  +  + 
- -
IAA (2.5 ppm) 6.008 ± 0.734 a b 3.750 ± 0.452 a  +  +  +  - -
BA ( 10 ppm) 4.533 ± 0.624bc 2.833 ± 0.577 bc  +  -  + 
BA (25 ppm) 4.442 ± 0.516b c d 3.500 ± 0.674 ab  +   +  +   + 
BA (50 ppm) 4.425 ± 0.636b c d 3.333 ± 0.651a b -  +  +  +   +  +  + 
IAA + BA (0.5 + 10) ppm 4.008 ± 0.478 e 3.167 ± 0.577ab  +  +  +  - -
IAA + BA (1.8 + 25) ppm 4.533 ± 0.414 d e 3.667 ± 0.492 a  +  +  +  +   +  -
IAA + BA (2.5 + 50) ppm 4.525 ± 0.398 d e 2.500 ± 0.674 b  +  - -
A. oryzae IAA optim. Conc. ( BG-110) 5.208 ± 0.348bcd 2.583 ± 0.515 b  +  +  +  - -
A. oryzae BA optim conc.(BG110) 4.8833 ± 0.3433b 2.500 ± 0.522c  +  +  - -
A. oryzae(100% TSW) IAA optim. conc 5.708 ± 1.053bc 3.750 ± 0.452 a  +  +  +  +  +  - -
A. oryzae(100%TSW) BA optim. conc 4.767 ± 0.543b 3.083 ± 0.669abc  +  +  +  - -
  1. TSW Treated sewage wastewater (-):Absence (6 +): the highest (5 +):high (4 +):moderate (3 +):low ( +):The lowest DMSO: Dimethyl sulfoxide MS: Murashige and Skoog medium
  2. The values are the mean of three replicates ± SD
  3. Values followed by different letters are significantly different (p ≤ 0.05)