为探索K＋对双边栝楼生长的影响，现采用实生苗盆栽实验，研究钾肥对双边栝楼生理指标、碳水化合物累积量及药效成分累积量的作用。本实验设置不同浓度的钾肥施用组，分别为0 g·L-1（CK）对照组，及0.4 g·L-1（K1）、0.8 g·L-1（K2）、1.2 g·L-1（K3）、1.6 g·L-1（K4）4个处理。结果表明，随着施钾量的上升，双边栝楼叶片内光合色素含量波动明显，植物抗逆性呈先增后减趋势。除此之外，施钾量对植物碳水化合物积累及药效成分含量同样有显著影响。其中，双边栝楼根内淀粉、可溶性糖、皂苷及天花粉蛋白均随着施钾量的上升呈现先增后减趋势，而瓜氨酸呈先减后增趋势。与各组CK相比，K2处理下的植物生理参数综合最优，9月K2处理下，根内可溶性糖积累量为33.41%，7月K2处理下直链淀粉增加量为149.32%，5月K2处理下支链淀粉增加量为169.77%。采收期K2处理下皂苷增加量为47.83%，K3处理下天花粉蛋白增加量为76.74%，K4处理下瓜氨酸增加量为72.77%。综上考虑，最优施钾量为K2，可为生产提供参考与借鉴。
目录
摘要 I
关键词 I
Abstract I
引言
1 材料与方法 1
1.1 试验材料 1
1.2 试验设计 1
1.3 测定项目及方法 1
1.4 数据处理 2
2 结果与分析 2
2.1 钾对双边栝楼叶片内光合色素含量的影响 2
2.2 钾对双边栝楼根内酶活性的影响 2
2.3 钾对双边栝楼根内可溶性糖含量的影响 3
2.4 钾对双边栝楼根内直链淀粉含量的影响 3
2.5 钾对双边栝楼根内支链淀粉含量的影响 4
2.6 钾对双边栝楼根内直链淀粉/支链淀粉影响 4
2.7 钾对双边栝楼根内药效成分含量的影响 5
3 讨论 5
3.1 钾对双边栝楼生理参数的影响 5
3.2 钾对双边栝楼根内碳水化合物累积量的影响 6
3.3 钾对双边栝楼根内皂苷、天花粉蛋白及瓜氨酸含量的影响 7
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总结 7
致谢 8
参考文献 8
K+肥对双边栝楼生长的影响
Effects of Potassium on the Growth of Trichosanthes rosthornii Harms
Student majoring in Traditional Chinese medicine BAI Xinyue
Tutor WANG Kangcai
Abstract: In order to explore the effect on the growth of Trichosanthes rosthornii Harms. We did a pot experiment with seedling to explore the effects of potassium fertilizer on the physiological indicators, the accumulation of carbohydrates and the accumulation of Trichosanthes rosthornii Harms. The potassium application: 0 gL1(CK) was set up as the control group, and the nitrogen rates: 0.4 gL1(K1), 0.8 gL1(K2), 1.2 gL1(K3), 1.6 gL1(K4) were set up as 4 test groups. The results illustrated that with the increase of potassium application, the photosynthetic pigment content in the leaves of double trichosanthes kirilowii maxim fluctuates obviously, and the plant stress resistance increases first and then decreases. In addition to this, the potassium had significant effects on carbohydrate and active ingredients in root. With the increase of potassium application, the accumulation of soluble sugar, amylopectin, amylase and the content of saponin, trichosanthin in roots increased at first and then decreased, the content of citrulline decreased at first and then increased. Over time, the accumulation of soluble sugar increased gradually. the accumulation of amylopectin, amylase increased at first and then decreased. Compared with CK, the accumulation of soluble sugar increased by 33.41% under K2 treatment in September, the accumulation of amylopectin increased by 169.77% under K2 treatment in May, the accumulation of amylase increased by 149.32% under K2 treatment in July, the content of saponin increased by 47.83% under K2 treatment, the content of trichosanthin increased by 76.74% under K3 treatment, the content of citrulline increased by 72.77% under K4 treatment. To sum up, the optimal nitrogen rate was K2 (0.8 gL1). Our study can be used for reference in practical production.
Keywords: Potassium；Trichosanthes rosthornii Harms；Resistance；Carbohydrates；Active ingredients

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