1 材料与方法
1.1 材料
1.2 方法
2 结果与分析
2.1 不同处理条件下桑树幼苗生长情况及侵染率
表1 不同处理下桑树幼苗生长及侵染率Tab. 1 Growth and infestation rate of mulberry seedlings under different treatments |
| 时期 Period | 接种 Inoculation | 株高 Plant height /cm | 茎粗 Stem diameter /mm | 叶面积 Leaf area /cm2 | 叶片数 Fresh leaf number | 干重Dry weight/g | 侵染率 Infestation rate/% | ||
|---|---|---|---|---|---|---|---|---|---|
| 叶Leaf | 茎Stalk | 根Root | |||||||
| 供水时期 | -M | 17.63c | 2.33b | 50.52c | 9.33c | 1.42b | 0.64b | 0.18b | 0.00 |
| Fm | 20.83b | 2.60b | 63.79b | 10.67b | 1.61a | 0.89a | 0.25a | 60.54b | |
| Ri | 24.60a | 3.23a | 82.58a | 13.33a | 1.37b | 0.88a | 0.25a | 79.66a | |
| 干旱时期 | -M | 19.50B | 2.59B | 53.97C | 6.00B | 0.87B | 1.04C | 0.39C | 0.00 |
| Fm | 25.90A | 2.61B | 66.77B | 8.67A | 0.80C | 1.16B | 0.48B | 64.02B | |
| Ri | 26.55A | 3.24A | 86.76A | 9.33A | 1.26A | 1.49A | 0.58A | 68.27A | |
Note: Values followed by different lowercase letters (uppercase letters) in the same column indicate significant difference between different strains at water supply (dry) period (P<0.05). | |
注:同列不同小写(大写)字母表示供水时期(干旱时期)不同菌种处理间差异显著(P<0.05)。 |
2.2 不同处理条件对桑树幼苗各组分养分含量的影响
表2 不同处理下桑树各组分碳(C)、氮(N)、磷(P)、钾(K)的含量Tab. 2 Contents of carbon (C), nitrogen (N), phosphorus (P) and potassium (K) in mulberry under different treatments g•kg-1 |
| 时期 Period | 接种 Inoculation | 碳C | 氮N | 磷P | 钾K | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 叶 Leaf | 茎 Stalk | 根 Root | 叶 Leaf | 茎 Stalk | 根 Root | 叶 Leaf | 茎 Stalk | 根 Root | 叶 Leaf | 茎 Stalk | 根 Root | ||
| 供水时期 | -M | 421.27b | 419.50a | 403.80a | 33.10b | 17.13b | 17.87c | 1.37c | 0.85c | 1.12c | 54.24c | 34.18c | 37.88a |
| Fm | 422.10b | 417.37b | 396.93b | 45.83a | 22.57a | 25.17b | 4.00b | 2.91b | 2.63a | 56.53b | 39.00a | 32.23c | |
| Ri | 426.30a | 420.33a | 366.23c | 45.60a | 23.03a | 26.37a | 5.36a | 3.43a | 2.15b | 60.06a | 37.96b | 37.09b | |
| 干旱时期 | -M | 412.27A | 418.00A | 416.53A | 37.27B | 20.30C | 19.10C | 1.77C | 1.07C | 1.04B | 58.27A | 26.37C | 24.68C |
| Fm | 391.10C | 407.97B | 393.33C | 42.13A | 25.30A | 24.40A | 4.29A | 3.23A | 3.93A | 50.37C | 30.46A | 34.55B | |
| Ri | 402.63B | 404.10C | 400.97B | 35.30C | 22.37B | 21.53B | 2.90B | 2.22B | 0.96B | 50.99B | 26.45B | 50.43A | |
Note: Values followed by different lowercase letters (uppercase letters) in the same column indicate significant difference between different strains at water supply (dry) period (P<0.05). | |
注:同列不同小写(大写)字母表示供水时期(干旱时期)不同菌种处理间差异显著(P<0.05)。 |
2.3 不同处理条件下桑树幼苗养分化学计量比的变化
2.4 不同处理条件对土壤养分含量的影响
表3 不同处理下土壤碳(C)、氮(N)、磷(P)、钾(K)的含量Tab. 3 Contents of soil carbon (C), nitrogen (N), phosphorus (P) and potassium (K) under different treatments |
| 时期 Period | 接种 AMF used | 碳含量 SOC/(g∙kg-1) | 总氮量 TN/(g∙kg-1) | 总磷量 TP/(g∙kg-1) | 总钾量 TK/(g∙kg-1) | 有效氮量 AN/(mg∙kg-1) | 有效磷量 AP/(mg∙kg-1) | 有效钾量 AK/(mg∙kg-1) |
|---|---|---|---|---|---|---|---|---|
| 供水时期 | -M | 14.73a | 0.17a | 0.61a | 23.12a | 126.17a | 14.83a | 169.73a |
| Fm | 13.70b | 0.17a | 0.44b | 19.74b | 117.83ab | 10.77b | 136.97c | |
| Ri | 13.47b | 0.16b | 0.29c | 19.95ab | 114.50b | 10.07b | 161.83b | |
| 干旱时期 | -M | 15.63A | 0.14C | 0.59A | 19.93B | 106.77C | 7.83C | 109.37C |
| Fm | 14.67B | 0.16B | 0.54B | 22.10A | 119.13B | 15.73A | 124.07B | |
| Ri | 15.53A | 0.18A | 0.60B | 21.17AB | 128.40A | 14.33B | 136.67A |
Note: Values followed by different lowercase letters (uppercase letters) in the same column indicate significant difference between different strains at water supply (dry) period (P<0.05). | |
注:同列不同小写(大写)字母表示供水时期(干旱时期)不同菌种处理间差异显著(P<0.05)。 |
