应用３１１—Ａ最优回归设计研究ＡＢＡ、ＰＥＧ４０００及AgNO3对落叶松体

采用三因素多项式回归３１１－Ａ最优设计方法对影响落叶松体细胞发生数量的ＡＢＡ、ＰＥＧ４０００和ＡgNO3的用量进行了研究，建立了华北落叶松正常体细胞胚发生数量与ＡＢＡ、ＰＥＧ４０００和ＡgNO3的数学模型，分析了落叶松体细胞 生数量试验因子的主效应和互作效应,优选了落叶松体细胞胚发生数量最佳结果的最佳技术组合方案为ＡＢＡ１８．９１３８mg/L,PEG400088.8007g/L与ＡgNO310.7513mg/L时，最佳体细胞胚数量应为１０７．５２７８个子叶胚／g.callus。实验结果表明，该方法是针对叶树体细胞胚胎发生过程中，主要激素种类与浓度配比，处理组合，科学、合理的培养基优化途径。

Study on effect of ABA, PEG4000 and AgNO3 on number of somatic embryos of Larix Principis-Rupprechtii by 311-A regression design]

This paper, the effects of ABA, PEG400 and AgNO3 on the number of somatic embryos of Larix Principis-Rupprechtii were carried out by 311-A regression design. The regression equation was established which expresses the number of somatic embryos of Larix Principis-Rupprechtii as function, and the ABA, PEG400 and AgNO3 on as variable respectively. Using the regression equation, the single factor effect and mutual effect between the number of somatic embryos of Larix Principis-Rupprechtii and ABA, PEG400 and AgNO3 was studied; the optimum concentration recipes can be obtained by computer processing, that are ABA: 18.9138 mg/L, PEG400: 88.8007 g/L and AgNO3: 10.7513 mg/L, the target somatic embryos number is 107.5278 each gram callus. The results of experiment showed that this method is simple, practical and rapid for selecting several hormone category and concentration recipes media of conifer somatic embryogenesis.