Table 3.

The efficacy of Pi alone or in combination with reduced dose of myclobutanil on growth of pear (Pyrus communis ‘Williams’ Bon Chretien’) at the cessation of the growing season.

Treatment	2006				2007
	Crown volume	Number fruit per tree	Mean fruit weight (g) per tree	Yield/tree (kg)	Crown volume	Number fruit per tree	Mean fruit weight (g) per tree	Yield/tree (kg)
Control	0.63a	38a	236.8a	9.0a	0.66a	40a	205.0a	8.2a
Myclobutanil 0.3 ml	1.40e	55d	261.8b	14.4c	1.51c	75d	213.4ab	16.0d
Pi 10 ml	0.89bc	42ab	240.4a	10.1ab	0.95b	51b	219.6ab	11.2b
Pi 20 ml	0.92bc	44bc	240.9ab	10.6ab	0.98b	57bc	228.1b	13.0bc
Myclobutanil 0.075 ml	0.79ab	40ab	247.5ab	9.9ab	0.74a	49b	218.3ab	10.7ab
Pi 10 ml + Myclobutanil 0.075ml	1.09cd^{^z}	46c	250.0ab	11.5ab^{^z}	1.14b^{^z}	60c	208.3ab	12.5bc
Pi 20 ml + Myclobutanil 0.075 ml	1.22de^{^z}	48c	243.8ab	11.7b^{^z}	1.36c^{^z}	65c	215.4ab	14.0cd^{^z}
LSD	0.21	5.7	21.23	2.5	0.19	8.2	22.6	2.7

↵^zSynergistic effect according to Limpel’s formula.
Means within columns with unlike letters differ significantly according to LSD (P = 0.05). All treatments applied per liter of water. All values mean of ten trees. Lower case letters indicate significant differences between means for each evaluation date by LSD (P = 0.05).