Table 6: The maximum available concentration in soil B after incorporation of white clover plant material and at days after incorporation, and the concentration of available flavonoids in soil A (nmol/kg dry weight). Values represent the mean of two replicate analyses.

CompoundSoil B (used for incorporation)Soil A
(used for cultivation)
Max conc.
(at time (days))
Conc. at
days

Kaempferol1355 ( )1297520
AstragalinNDNDND
Kaempferol-Rha-Xyl-Gal3417 ( )5051
QuercetinNDNDND
Hyperoside72 ( )12ND
Quercetin-Xyl-Gal492 ( )2716
Rutin41 ( )NDND
Quercetin-Rha-Xyl-Gal85 ( )NDND
ApigeninNDNDND
SaponarinNDNDND
LuteolinNDNDND
Luteolin-Glc5.2 ( )NDND
Luteolin-di-Glc5.4 ( )4.4ND
Naringenin17 ( )1.81.9
Daidzein121 ( )1324
Daidzin11 ( )0.55.4
Formononetin10234 ( )10099114
Genistein115 ( )183.7
Genistin21 ( )0.33.8
Biochanin A13 ( )5.43.8
Sissotrin2.8 ( )ND2.3
Medicarpin3940 ( )277832
Coumestrol39 ( )6.822