Detection and characterization of difenoconazole resistance in Stagonosporopsis citrulli from watermelon and muskmelon in Zhejiang Province of China

Table 2 Biological characteristics of difenoconazole-sensitive and -resistant isolates

Isolate	Phenotypes*	Growth	Sporulation	Pathogenicity
Isolate	Phenotypes*	(mm/d)	(× 10⁶ conidia/mL)	(Lesion diameter/mm)
HZXGJ-3	Dif^S	18.33 ± 0.22ab	29.38 ± 0.16a	25.3 ± 1.5ab**
JHTGY-7		17.67 ± 0.08c	5.56 ± 0.28b	24.0 ± 1.8ab
WZTGJ-4		19.79 ± 0.08a	4.05 ± 0.06c	27.8 ± 2.6a
WZTGJ-3		19.21 ± 0.18a	1.53 ± 0.07d	25.3 ± 1.8ab
JHXGJ-14	Dif^HR	18.71 ± 0.15ab	1.25 ± 0.17d	18.7 ± 1.0b
WZXGJ-11		14.29 ± 0.04d	1.24 ± 0.27d	24.3 ± 2.5ab
JHTGY-5		17.58 ± 0.21c	0.23 ± 0.09e	23.7 ± 1.4ab
JHXGJ-35		18.88 ± 0.19ab	0.15 ± 0.02e	26.2 ± 1.4ab
WZXGJ-21	Dif^MR	17.23 ± 0.08c	6.17 ± 0.28b	28.3 ± 2.1a
WZXGJ-17		19.85 ± 0.08a	28.46 ± 0.12a	25.1 ± 1.2ab
JHTGY-7		19.13 ± 0.11a	7.33 ± 0.24b	23.3 ± 1.1ab
NBXGY-6		18.25 ± 0.18ab	4.26 ± 0.05c	24.9 ± 1.4ab
NBCGY-7	Dif^LR	17.76 ± 0.07c	4.37 ± 0.05c	28.4 ± 1.8a
JHXGJ-8		19.46 ± 0.10a	6.34 ± 0.11b	25.0 ± 1.0ab
JHXGJ-3		19.95 ± 0.08a	30.35 ± 0.23a	27.1 ± 1.6a
TZXGJ-4		18.27 ± 0.13ab	6.96 ± 0.29b	27.1 ± 1.9a

*Dif^S, Dif^LR, Dif^MR, and Dif^HR mean difenoconazole sensitive, low-level resistant, moderate-level resistant, and high-level resistant isolates, respectively. **Mean values in the same column with the same letters were not statistically different (P > 0.05) according to the least significant difference (LSD) test