【作者】 陈晓明；

【导师】 杨美纯；

【作者基本信息】 广西大学 ， 作物栽培学与耕作学， 2005， 硕士

【摘要】 本试验以麝香百合组培苗为材料,对百合组培苗生根、试管内结鳞茎和移栽时期的营养液和栽培基质等方面进行了研究,采用“311-A”最优混合设计,研究了营养液中氮、磷、钾不同配比对百合组培苗生长发育的影响,并利用计算机,通过建立鳞茎鲜重和淀粉含量的三元二次回归模型,模拟寻优得出高产、高淀粉的栽培营养液配方的氮、磷、钾最佳浓度和配比。试验结果如下: 1.PP333能有效地促进百合组培苗试管内生根、结鳞茎,浓度为2mg/L时效果最佳。 2.在本实验的条件下,百合组培苗栽培的最优基质为菜园土:沙:腐殖质=1:2:1,这种基质构成良好的土壤结构,有利于百合苗的生长和扎根。百合组培苗苗期喷施叶面肥,以1MS大量元素营养液喷施为最佳浓度。 3.不同氮磷钾配比的施肥试验表明,在11个处理中,处理11的百合株高适中、茎粗和叶面积最大、叶片最多;叶片叶绿素含量最高,叶片光合作用最强;植株全氮和全钾的含量也是各处理中最高;鳞茎品质也是各处理中最优。 4.在-2～0水平,氮、磷、钾互作对百合组培苗鳞茎鲜重和淀粉含量有一定的正向互作效应。应用DPS数据处理系统对百合组培苗鳞茎鲜重和鳞茎淀粉含量2项指标进行综合模拟寻优得氮、磷、钾的用量分别为148.18mg/L、33.00mg/L、141.60mg/L时,百合组培苗采收时鳞茎鲜重最重、鳞茎淀粉含量最高,此时其鳞茎鲜重和淀粉含量分别为32.18g和17.75%。获得最佳施肥配比:氮:磷（P₂O₅）:钾（K₂O）=1:0.22:0.96。更多还原

【Abstract】 The experiment was to study rooting and forming of bulblets in Tube, transplantation on the Lilium longiflorum Thunb. "311 -A" optimum compound design were used to study on the effects of different nitrogen, phosphorus and potassium levels on growth, development, yield and quality of Lily Plantlet. At the same time, the model formulations were founded by using multivariate regression analysis methods on computer. The obtained results were summarized as follows:1. PP333 improved the Lily Plantlet taking root, bulblet forming and expanding in the tube. The best concentration was 2mg/L paclobutrazol. 2.At this experimental condition, better medium of Lily Plantlet cultivation was soil: Sand: humus soil = 1:2:1, this kind of medium form good soil structure. It was advantageous to takes root and growth. The Lily Plantlet was spurted the MS macro-element in seeding periods. The test result indicated that the 1MS macro-element was the best concentration.3. With in eleven treatments, the eleventh treatment’s the height of seeding was moderate, the stem diameter and the leaf area were the biggest, the number of leaf were the most; chlorophyll content was the highest and photosynthesis was the strongest in the Lily Plantlet leaf; the content of total nitrogen and the content of total potassium in The lily plantlet leaf was the highest. The quality The lily plantlet bulbs was excellent.4. At a certain range of concentrations （within -2⁰ levels）, mutual effects of nitrogen, phosphorus and potassium on the fresh weight of bulbs and the contents of starch of bulbs can affect them positively. Regressive analysis showed that the optimal project of fertilizing nitrogen, phosphorus andpotassium was: N 148.18 mg/L, P₂O₅ 33.00 mg/L and K₂O 141.60mg/L. And then N:P₂O₅:K₂O=1:0.22:0.96更多还原