Integrated Management of Late Blight Potato (Phytophthora infestans, (Mont) de Bary) Disease through Potato Varieties and Fungicides in Lay-Armachiho District, Ethiopia

Table 1

Interaction effects of fungicides and potato varieties on late blight disease incidence.

Variety	Fug.	52DAP	59DAP	66DAP	73DAP	80DAP
Local	NO	29.20^a	47.93^a	62.50^a	72.93^a	81.20^a
	MM	22.93^b	35.46^cb	54.20^b	68.80^ba	79.20^ba
	RR	20.86^b	37.53^b	47.96^cb	62.50^bc	72.93^bdc
Jalene	NO	18.80^cb	35.46^cb	43.76^cde	60.43^dc	70.86^edc
	MM	14.60^cd	27.17^ced	39.60^de	52.10^fe	58.36^g
	RR	10.43^ef	25.03^ed	37.53^fe	43.70^g	50.03^h
Gudene	NO	20.86^b	35.40^cb	45.86^cd	62.50^bc	77.10^bac
	MM	14.60^cd	33.33^cbd	43.76^cde	54.20^dfe	62.53^gf
	RR	12.50^d	33.33^cbd	41.70^cde	47.93^gf	64.60^egf
Belete	NO	18.80^cb	35.40^cb	43.76^cde	56.26^dce	66.70^edf
	MM	6.26^ef	18.76^fe	31.30^f	41.70^g	47.93^h
	RR	2.10^f	10.43^f	18.80^g	27.10^h	31.26^i
Significancee (0.05%)		ns	ns
LSD (0.05) 7.7 (0.05)		8.06	10.08	7.85	6.33	7.85
CV (%)		21.5	19.1	10.9	6.9	7.3

Ns = non significant at (%) or (%); and means within the same column followed by the same letter(s) are not significantly different at (%) and (%) respectively. LSD = least significant difference, CV (%) = coefficient of variation, Var. = variety, Fug = fungicide, DAP = days after planting, NO = control, MM = mancozeb and RR = ridomil fungicide.