Multiple resistance-activating substances produced by Humicola phialophoroides isolated from soil for control of Phytophthora blight of pepper

Botanical Studies

Table 2 Comparison of ability of liquid cultures of single-spore isolates of Humicola phialophoroides KVF-2 to reduce disease incudence of Phytophthora blight of pepper caused by Phytophthora capsici ^a

Origin and isolate	Inoculation site^b
	Upper leaf surface (treated surface)		Lower leaf surface (non-treated surface)
	Infection rate (%)	Lesion size (mm)	Infection rate (%)	Lesion size (mm)
Conidia
S1	30	4 b	100	9 bc
S2	30	2 b	100	4 e
S3	0	1 d	100	6 de
Chlamydospore
B1	50	4 b	90	7 cd
B2	0	0 d	70	4 ef
B3	20	1 d	100	8 cd
B4	30	2 c	100	6 de
B5	0	0 d	100	4 e
B6	0	0 d	60	1 f
B7	10	1 d	100	9 bc
B8	0	0 d	80	8 bc
B9	0	0 d	100	4 e
B10	0	0 d	100	12 ab
Original isolate	0	0 d	80	9 bc
Medium (control)	100	13 a	100	14 a

^aFour leaves were treated with a liquid culture on the upper side daily for 3 days before inoculation on the 4th day on two upper leaves and two lower leaves.
^bValues followed by the same letter in the same column are not significantly different using Fisher’s least significant difference test at P = 0.05.