Page 80 - 《广西植物》2023年第7期
P. 80
1 2 4 8 广 西 植 物 43 卷
A. 接种后 84 hꎻ B. 接种后 156 hꎻ C. 接种后 204 hꎮ
A. 84 h after inoculationꎻ B. 156 h after inoculationꎻ C. 204 h after inoculation.
图 1 接种青枯菌后不同时间广藿香青枯病严重度变化
Fig. 1 Severity change of bacterial wilt after inoculated Ralstonia solanacearum in Pogostemon cablin
表 1 内生真菌 GHX ̄P17 提取液对广藿香青枯病发病率的影响(x±sꎬ n = 3)
Table 1 Effects of extraction solution of endophytic fungus GHX ̄P17 on the incidence
rate of bacterial wilt in Pogostemon cablin (x±sꎬ n = 3)
浓度 Concentration
 ̄1
(mgmL )
接种后时间
CK 2.5 5.0 10.0
Time after inoculation
(h)
发病率 发病率 发病率 发病率
Incidence rate Incidence rate Incidence rate Incidence rate
(%) (%) (%) (%)
84 10.92 ±0.04c 10.23 ±0.07c 9.81 ±0.12c 11.23 ±0.34c
120 31.32 ±0.13b 30.61 ±0.11b 30.52 ±0.12b 28.41 ±0.19b
156 40.40 ±0.23b 43.22 ±0.20b 41.42 ±0.18b 37.53 ±0.41bc
180 97.60 ±0.14a 89.58 ±0.22a 90.63 ±0.24a 79.85 ±0.53a
204 100.00 ±0.00a 100.00 ±0.00a 100.00 ±0.00a 94.65 ±0.00a
注: 同一行中平均值后不同的小写字母表示相互之间差异显著(Turkey 检验 P<0.05)ꎮ 下同ꎮ
Note: Mean values within the same line followed by different small letters are significantly different (Turkey test P<0.05). The same below.
表 2 内生真菌 GHX ̄P17 提取液对广藿香青枯病 DI 的影响(x±sꎬ n = 3)
Table 2 Effects of extraction solution of endophytic fungus GHX ̄P17 on the disease
index of bacterial wilt in Pogostemon cablin(x±sꎬ n = 3)
浓度 Concentration
 ̄1
(mgmL )
接种后时间
Time after inoculation CK 2.5 5.0 10.0
(h)
病情指数 病情指数 病情指数 病情指数
DI (%) DI (%) DI (%) DI (%)
84 20.98±0.31c 21.45±0.34c 18.21±1.33c 16.57±1.53d
120 51.28±0.33b 45.21±0.45b 23.70±1.26c 19.78±0.99cd
156 57.78±0.45b 55.23±0.55b 37.37±1.95c 34.38±2.05c
180 71.44±1.38b 67.68±0.41b 42.04±3.91bc 40.56±0.87bc
204 98.10±2.49a 92.11±0.44a 67.11±2.70b 68.45±2.28b