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Studies On Biological Characteristics, Cultivation Techniques And Extraction Technology Of Effective Components In Cynanchum Bungei Decne

Posted on:2007-08-18Degree:DoctorType:Dissertation
Country:ChinaCandidate:F ZhangFull Text:PDF
GTID:1103360185450394Subject:Crop Cultivation and Farming System
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Cynanchum bungei decne,a perennial herb,is our country's traditional medicine and sanitarian food, which has great value for use of medical and hygienical protection. This experiment was conducted from 2002 to 2005 in the Experiment Farm of Shandong Agricultural University and Taian Dawenkou. biological characteristics ,cultivation techniques and extraction technology of effective components,from radix Cynanchum bungei were studied.The main results were as follows:1 The dynamic of growth and development process and the accumulation of the effective components characteristicThe individual dry matter accumulation during the whole development stage presented"S"curve under field condition.Obvious difference of total dry matter exists among different-aged Cynanchum bungei Decne .As time goes onthe total dry matter increased and this difference was enlarged with the advance of development stage, which has positive correlation with the yearsThe development discipline of every organ was different in different development period.The diameter of main stem increased with the advance of development stage, which has positive correlation with the time.The change of the number of leaves and LAI is single- apices curve, which indicated that the reproductive growth is in the dominant after blossom, so the fructification start to accumulate rapidly. The significant period of radix accumulation is after September every year, further more, the dry matter increased with the advancement of development. The effective components in radix of Cynanchum bungei Decne is C21 steroidal glycosides, flavonoids and polysaccharides,which increased with the advancement of...
Keywords/Search Tags:Cynanchum bungei Decne, Cultivation application, Biological characteristics yield, Quality
PDF Full Text Request
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