1 材料与方法
1.1 材料
1.2 方法
表1 不同植物生长调节剂下黄精组培苗继代增殖情况Tab. 1 Multiplication of tissue cultured plantlets of P. sibiricum under different plant growth regulators |
| 编号 No. | 6-BA /(mg·L‒1) | 2,4-D /(mg·L‒1) | NAA /(mg·L‒1) | KT /(mg·L‒1) | 繁殖系数 Multiplication rate |
|---|---|---|---|---|---|
| 1 | 1 | 0.1 | 0 | 0 | 5.44±0.3bAB |
| 2 | 1 | 0.2 | 0.2 | 1.0 | 4.83±0.8bB |
| 3 | 1 | 0.4 | 0.4 | 2.0 | 5.04±0.6bB |
| 4 | 2 | 0.1 | 0.2 | 2.0 | 5.69±0.6bAB |
| 5 | 2 | 0.2 | 0.4 | 0 | 6.32±1.1aA |
| 6 | 2 | 0.4 | 0 | 1.0 | 5.50±0.4bAB |
| 7 | 4 | 0.1 | 0.4 | 1.0 | 5.27±0.7bB |
| 8 | 4 | 0.2 | 0 | 2.0 | 5.23±0.5bB |
| 9 | 4 | 0.4 | 0.2 | 0 | 2.31±0.3cC |
| K1 | 16.32 | 16.7 | 16.51 | 16.71 | |
| K2 | 17.51 | 16.38 | 14.83 | 15.6 | |
| K3 | 14.81 | 15.52 | 17.3 | 16.63 | |
| R | 2.7 | 1.22 | 2.47 | 1.03 |
注:不同小写字母表示处理间差异显著(P<0.05),不同大写字母表示处理间差异极显著(P<0.01)。 | |
Note: Different lowercase letters mean significant difference at P<0.05, and different uppercase letters mean extremely significant difference atP<0.01. |
1.3 数据分析
2 结果与分析
2.1 黄精组培苗继代增殖的适宜培养基
表2 黄精平均增殖系数的正交试验方差分析Tab. 2 Variance analysis of average proliferation coefficient in P. sibiricum |
| 处理 Treatment | 平均值偏差平方和 DEVSQ | 自由度 df | F值 F value | 显著性Significance |
|---|---|---|---|---|
| 6-BA | 3.688 | 2 | 3.029 | * |
| 2,4-D | 0.788 | 2 | 0.648 | |
| NAA | 3.166 | 2 | 2.601 | |
| KT | 0.590 | 2 | 0.485 |
注:*表示差异显著(P<0.05)。 | |
Note: * means significant difference at P<0.05.. |
2.2 黄精组培苗继代增殖的适宜温度
表3 不同培养温度下黄精组培苗继代增殖情况Tab. 3 Multiplication of tissue cultured plantlets of P. sibiricum under different culture temperature |
| 培养温度 Culture temperature/℃ | 接种数 Number of inoculated plants | 繁殖系数 Multiplication rate | 不定芽生长情况 Multiple shoots growth condition | 生长势 Growth vigor |
|---|---|---|---|---|
| 22 | 90 | 6.88±0.4aA | 不定芽叶片浓绿 | |
| 26 | 90 | 5.42±0.9bB | 部分不定芽叶片变黄 | ++ |
| 30 | 90 | 4.27±0.6cC | 不定芽叶片变黄 | + |
注:不同小写字母表示处理间差异显著(P<0.05),不同大写字母表示处理间差异极显著(P<0.01)。 | |
Note: Different lowercase letters mean significant difference at P<0.05, and different uppercase letters mean extremely significant difference atP<0.01 |
2.3 黄精组培苗生根适宜培养基
表4 不同植物生长调节剂下黄精组培苗生根情况Tab. 4 Rooting of tissue cultured plantlets of P. sibiricum under different plant growth regulators |
| 处理编号 No. | 基本培养基 Basic medium | NAA /(mg·L‒1) | IBA /(mg·L‒1) | 生根率 Frequency of shoots rooting/% | 根数 Average root number of per plantlet | 平均根长 Average length of the roots of per plantlet/cm |
|---|---|---|---|---|---|---|
| 1 | MS | 0.2 | 0 | 62.5±10.1dC | 3.87±1.3bcABC | 1.16±0.3bAB |
| 2 | MS | 0.5 | 0 | 81.7±4.3bAB | 4.48±0.5abABC | 1.30±0.2abAB |
| 3 | MS | 0.5 | 0.2 | 96.2±6.2aA | 5.53±0.5aA | 1.62±0.4abA |
| 4 | MS | 1.0 | 0 | 59.4±5.2cdD | 5.37±0.6aAB | 1.99±0.6aA |
| 5 | MS | 0 | 0.2 | 78.8±4.8bBC | 3.53±0.3bcBC | 0.40±0.3cB |
| 6 | MS | 0 | 0.5 | 72.1±6.4bcBC | 3.51±0.8bcBC | 1.17±0.3bAB |
| 7 | MS | 0 | 1.0 | 43.3±8.7eD | 3.15±0.7cC | 1.10±0.2bAB |
注:不同小写字母表示处理间差异显著(P<0.05),不同大写字母表示处理间差异极显著(P<0.01)。 | |
Note: Different lowercase letters mean significant difference at P<0.05, and different uppercase letters mean extremely significant difference atP<0.01. |
图1 黄精组培苗离体培养过程A:继代增殖培养20天;B~C:继代增殖产生的不定芽; D~E:生根组培苗;F:组培苗移栽。 Fig. 1 In vitro culture of P. sibiricum A: Multiplicated types of adventitious bud in multiple culture medium after cultured 20 d; B-C: Adventitious buds cultured in multiple culture medium; D-E: Rooting of plantlets; F: Survival plantlet transplanted in plastic cup. |
2.4 黄精组培苗生根的适宜培养容器
表5 不同培养容器下组培苗生根情况Tab. 5 Rooting of tissue cultured plantlets of P. sibiricum under different culture vessel |
| 培养容器 Culture vessel | 生根率 Frequency of shoots rooting/% | 根数 Average root number of per plantlet | 平均根长 Average length of the roots of per plantlet/cm |
|---|---|---|---|
| 组培瓶 | 94.3±5.7a | 4.8±0.2a | 1.77±0.4a |
| 接种袋 | 92.7±9.2a | 4.1±0.2a | 1.40±0.3a |
注:相同小写字母表示处理间差异不显著(P>0.05)。 | |
Note: The same lowercase letters mean that there was no significant difference (P>0.05). |
