小麦、玉米两熟秸秆还田土壤中6种有机酸对小麦纹枯病的化感作用
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赵绪生,齐永志,闫翠梅,甄文超
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Allelopathy of Six Organic Acids on Wheat Sheath Blight in the Soil of Winter Wheat-Summer Maize Double Cropping Straw Returning System
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ZHAO XuSheng,QI YongZhi,YAN CuiMei,ZHEN WenChao
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表5 6种有机酸对小麦幼苗根系生理活性的影响
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Table 5 Effects of 6 organic acids on physiological activity of wheat seedling roots
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有机酸
Organic acid | 浓度
Concentration
(μg·mL-1) | 根活性
Root activity
(μg·g-1·h-1) | 相对电导率
Relative conductivity
(%) | SOD活性
SOD activity
(OD·g-1 FW) | POD活性
POD activity
(U·g-1 FW·min-1) | 邻羟基苯甲酸
O-hydroxybenzoic acid | 50.0 | - | - | - | - | | 10.0 | 36.9±0.8d | 89.1±3.1a | 14.4±0.9c | 148.7±13.3d | | 2.0 | 52.4±1.2c | 85.7±1.7a | 16.5±0.5b | 175.3±11.3c | | 0.4 | 81.6±0.6b | 74.5±2.4b | 18.3±0.6a | 226.7±10.1b | | 0.08 | 88.8±2.0b | 64.5±3.1c | 20.2±2.0a | 260.7±8.4a | 对羟基苯甲酸
P-hydroxybenzoic acid | 50.0 | - | - | - | - | | 10.0 | 37.8±0.7d | 91.2±2.6a | 14.5±0.8c | 182.9±8.6c | | 2.0 | 53.6±0.4c | 87.7±3.5a | 16.8±0.4b | 228.6±5.6b | | 0.4 | 83.5±1.2b | 76.3±2.4b | 16.9±0.5b | 242.3±12.3b | | 0.08 | 90.9±2.6b | 66.0±2.1c | 18.7±0.7a | 266.8±16.4a | 苯甲酸
Benzoic acid | 50.0 | 37.2±3.2d | 97.7±2.0a | 15.2±1.2c | 159.5±13.5d | | 10.0 | 39.6±2.8d | 95.5±3.5a | 17.6±0.5b | 191.6±12.6c | | 2.0 | 56.2±0.6c | 91.9±2.6a | 17.7±0.3b | 239.5±8.4b | | 0.4 | 87.5±3.5b | 79.9±2.7b | 18.6±0.4b | 243.8±10.3b | | 0.08 | 95.2±4.5a | 69.2±2.4c | 21.7±0.2a | 279.6±12.3a | 3-(4-羟基-3-甲氧基苯基)-2-丙烯酸
3-(4-hydroxy-3-methoxyphenyl)-
2-acrylic acid | 50.0 | 36.4±2.3d | 95.4±3.5a | 14.9±0.4c | 155.8±10.4d | | 10.0 | 38.7±2.4d | 93.3±2.7a | 17.2±0.3b | 187.2±8.6c | | 2.0 | 54.9±3.5c | 89.8±2.1a | 17.3±1.2b | 233.9±9.3b | | 0.4 | 85.5±3.7b | 78.1±1.8b | 19.2±0.2a | 248.0±11.2a | | 0.08 | 93.0±5.4a | 67.6±3.7c | 21.2±0.6a | 273.1±13.2a | 4-羟基-3-甲氧基-苯甲酸
4-hydroxy-3-
methoxy-
benzoic acid | 50.0 | 38.1±3.5d | 100.0±1.2a | 17.6±0.4b | 163.2±15.4d | | 10.0 | 40.5±2.6d | 97.8±2.5a | 18.0±0.3b | 196.1±20.3c | | 2.0 | 57.5±3.5c | 94.1±3.8a | 18.1±0.4b | 245.1±12.3b | | 0.4 | 89.6±3.5b | 81.8±10.2ab | 20.1±0.3a | 259.8±15.6a | | 0.08 | 97.5±5.1a | 70.8±2.5b | 22.2±0.2a | 286.2±17.2a | 4-甲氧基邻氨基苯甲酸
4-methoxy-anthranilic
acid | 50.0 | 39.0±2.7d | 102.3±3.0a | 16.0±0.1c | 167.1±15.4d | | 10.0 | 41.5±1.6d | 100.1±2.8a | 18.4±0.3b | 200.8±11.6c | | 2.0 | 58.9±1.1c | 96.3±2.7a | 18.5±0.4ab | 250.9±13.2b | | 0.4 | 91.7±2.4b | 83.7±3.2ab | 20.6±0.2a | 265.9±11.5b | | 0.08 | 99.8±3.4a | 72.5±1.5b | 22.7±0.6a | 292.9±13.4a | | CK | 0 | 99.5±2.9a | 71.8±1.7b | 21.4±0.5a | 291.4±11.3a |
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