论文部分内容阅读
通过对人工倍增CO2浓度(800±100)μmol·mol-1与正常CO2浓度(400±25)μmol·mol-1条件下短葶飞蓬植株生物量、体内灯盏乙素和总咖啡酸酯含量及产量的比较,探讨了CO2浓度升高对药用植物短葶飞蓬生物量、有效成分含量及产量的影响.结果表明:CO2浓度倍增条件下,短葶飞蓬植株生物量增加了22%;总咖啡酸酯及灯盏乙素含量分别增加23%和26%,产量分别增加37.6%和45.3%.不同器官的生物量及有效成分含量对CO2浓度升高的响应不同.在CO2浓度倍增条件下,短葶飞蓬植株含氮量减少47.2%,与次生代谢有效成分含量的变化呈反比,符合“碳素/营养平衡假说”;植株生物量与次生代谢产物含量的变化呈正相关,植株生长与次生代谢产物积累之间没有表现出权衡关系.说明合理施用CO2是可实现短葶飞蓬的优质高产.
The effects of artificial CO2 concentration (800 ± 100) μmol · mol-1 and normal CO2 concentration (400 ± 25) μmol · mol-1 on the biomass, scutellarin and total caffeic acid ester The effects of elevated CO2 on the biomass, active ingredient content and yield of medicinal plant Scirpus mariqueter were studied.The results showed that the biomass of Scirpus mariqueter increased by 22% under the condition of doubled CO2 concentration. Total coffee The content of acid esters and scutellarin increased by 23% and 26%, respectively, and their yields increased by 37.6% and 45.3%, respectively. The biomass and active ingredients of different organs had different responses to the increase of CO2 concentration. Cynanchum Phyllostachys plant nitrogen content decreased 47.2%, and secondary metabolites content is inversely proportional to changes in the content, consistent with the “carbon / nutrient balance hypothesis”; plant biomass and secondary metabolites content changes was positively correlated with plant growth And the accumulation of secondary metabolites showed no trade-off relationship, indicating that the reasonable application of CO2 is to achieve the high quality and high yield of Scirpus marijuana.