Table 2.

Determination of viable cells in soil samples artificially infected with C. cassiicola by different methods ^a.

Infected (spore·mL-1)b	PMA-qPCR
	Ct values	Viable spore counts
1×107 viable spores	22.34 ± 0.44 a	3.76×106
1×106 viable spores	24.40 ± 0.22 b	5.44×105
1×105 viable spores	28.59 ± 0.50 c	1.30×104
1×104 viable spores	30.18 ± 0.80 d	3.57×103
1×103 viable spores	33.81 ± 0.55 e	1.09×102
1×102 viable spores	34.13 ± 0.93 e	96.44
10 viable spores	>35 f	Not available
107 dead spores	>35 f	Not available
0 (CK)	>35 f	Not available

^a Viable spore counts are shown as spores per gram of soil. Not available means the C. cassiicola spore counts were zero or below the detection limit.

^b Artificially infected soil.