Table 3 Sum of mean phytohormones content ± standard deviation (SD) (ng g−1 dw) in composts both with and without distinction for abscisic acid, auxins, brassinosteroids, cytokinins, GA3, and salicylic acid.

From: Occurrence of plant hormones in composts made from organic fraction of agri-food industry waste

Composts (ng/g dw)

Abscisic acid

Auxins

Brassinosteroids

Cytokinins

GA3

Salicylic acid

∑ Phytohormones

Garden compost

ND

1.86 ± 0.20

4.83 ± 3.19

0.27 ± 0.04

 < 0.01

 < 0.01

6.96 ± 3.43

Compost hemp chaff and apple pomace

ND

0.05 ± 0.01

ND

0.87 ± 0.05

ND

 < 0.01

0.93 ± 0.06

Compost with buckwheat husk

0.09 ± 0.01

17.91 ± 0.90

24.35 ± 1.80

0.47 ± 0.05

 < 0.01

4.02 ± 0.37

46.85 ± 3.13

Organic compost

ND

 < 0.01

ND

0.17 ± 0.02

 < 0.01

 < 0.01

0.18 ± 0.02

Organic compost-pellets

ND

 < 0.01

64.40 ± 20.12

0.08 ± 0.03

 < 0.01

 < 0.01

64.48 ± 20.15

Biohumus extract

1.20 ± 0.03

65.31 ± 5.81

1945.60 ± 129.54

13.90 ± 1.16

0.13 ± 0.01

0.28 ± 0.01

2026.42 ± 136.56

  1. ND, Not detected.