The effect of crop species on DNase-producing bacteria in two soils

Annals of Microbiology

Table 3 Percentage of total variance contributed by experimental factors and their interactions on measured bacterial parameters

Source	TCDPB^a	P value	%CDPB^a	P value	TCFU^a	P value	TBL^a	P value
Crop	7.66	< .0001	3.74	0.023	7.95	< .0001	2.86	0.022
Date	7.47	< .0001	10.78	< .0001	16.88	< .0001	22.68	< .0001
Crop x date	9.24	0.001	3.55	0.359	11.82	< .0001	5.03	0.030
Experiment	0.30	0.313	16.37	< .0001	10.99	< .0001	7.45	< .0001
Crop x experiment	21.24	< .0001	5.50	0.003	15.91	< .0001	8.22	< .0001
Date x experiment	0.22	0.693	2.91	0.012	2.33	0.003	10.21	< .0001
Crop x date x experiment	10.43	< .0001	9.65	0.001	5.43	0.001	8.09	0.0002
Error	43.44	–	47.5	–	28.69	–	35.46	–

^aColumn values are the proportions (%) of the variance component explained by the factor
Abbreviations: TCDPB total culturable DNase-producing bacteria, %CDPB proportion of culturable DNase-producing bacteria, TCFU total colony-forming units, TBL total bacteria load

ISSN: 1869-2044