Table 2.

Evaluation of P. peoriae HJ-2 on biocontrol efficacy and the plant growth parameters of P. polyphylla in greenhouse and field experiments

Parameter		P. polyphylla
		Greenhouse experiment		Field experiment
		Control	Treatment	Control	Treatment
Disease incidence (%)		89.2 ± 0.3a	35.3 ± 0.4c	52.0 ± 0.2b	11.0 ± 0.15d
Control efficacy (%)		53.9 ± 1.3		41.0 ± 0.6
Stem	Length(cm)	5.6 ± 0.2c	8.8 ± 0.3b	7.6 ± 0.4bc	11.2 ± 0.6a
	Fresh weight(g)	12.3 ± 0.7c	15.8 ± 0.4bc	18.3 ± 0.5b	25.3 ± 0.7a
	Dry weight(g)	2.1 ± 0.1c	2.7 ± 0.2c	4.3 ± 0.1b	7.1 ± 0.3a
Root	Length(cm)	1.5 ± 0.1c	2.1 ± 0.2b	2.3 ± 0.2b	3.5 ± 0.3a
	Fresh weight(g)	4.5 ± 0.2c	6.7 ± 0.3bc	7.3 ± 0.2b	9.2 ± 0.4a
	Dry weight(g)	0.6 ± 0.1c	1.2 ± 0.1b	1.6 ± 0.2ab	2.7 ± 0.2a

The data are means ± SDs. The different lowercase letters in the same column indicate significant different at the P < 0.05 level, using LSD test