Primarily Biological Research On Wild Domestication Of Ixeris Sonchifolia (Bge.) Hance

The plant of Ixeris sonchifolia(Bge.) Hance(compositae family) is compositae plant and its another name is "kudiezi".It is mainly distributed in mountain areas,half mountain areas and Xiaoxinganling region of the south and east part of China northeast.It has been used as a Chinese folk medicine in invigorating circulation of blood,normalizing menstruation,and elimination blood stasis to relieve pain.It could be used for curing appendicitis,enteritis,dysentery,throwing up blood etc.and it has been commonly used in treating headache toothache,chest pain,stomachache and light pain after an operation,now frequently used in coronary heart disease.In recent years there are more and more researches on its chemical composition, pharmacological action and clinic function,the wild Ixeris sonchifolia(Bge.) Hance,therefore,could not meet the demand as the consuming amount increased continuously.Similar to most of our country's cultivated TCM,it is mainly cultivated with individual,that result in the following problems:Lacks the planter technology,The disperser is fragmentary,The technology content is low,The say nothing of standardization planted thus,the Baojingkumaicai quality,has been not stable and difficult to supply,etc.Along with traditional Chinese medicine(TCM) has been applied increasingly and extensively in the word,it is urgent to Grasping science,pratical,Comprehensive,Effective of Standardized planter technology.From the view of wild domestication,the TCM need Consideration very many aspects to Investigation and study.so only analyzing one target composition but for wild domestication of the TCM is not enough.therefore,this article is study for Biology characteristic,Photosynthesis physiology,Cultural technique and so on of Ixeris sonchifolia(Bge.) Hance,in oder to support Rationale and technical support for Changes wildly domestically grown and Standardized planter.This experiment is based on Wild domesticated principle,First has carried on the analysis to the soil that growth Ixeris sonchifolia(Bge.) Hance,Then conducts the system research on Biology characteristic, Photosynthesis physiology,Applies fertilizer the technology and Best recovery time to Ixeris sonchifolia (Bge.) Hance.It is the first reported that Biology characteristic,Photosynthesis physiology,Applies fertilizer the technology about Ixeris sonchifolia(Bge.) Hance.Through open country investigation,In lab and outdoor experiment,The whole results indicate:1.Seed weight of a thousand seeds is 0.08 to 0.1g,seed purity is 95.35%,seed Water content is 8.0%to9.5%, seed Maximum soakage is 34%.Each flower contains the seed number is between 18 to 26,the average contains the seed numberIs 21;the seed sprouts does not need the illumination,seed germination being suitable temperature is 25℃.Immersion time is 4 hour,the low concentration of GA₃ and the high potency of KMnO₄ affect in a big way to the germination;the inhibitory action of Seed leaching solution to Cabbage germination is not obvious;each growth development period of wild Baojingkumaicai and each growth development period of cultivated compare,The former is Ahead of time 5 to7 days.2.The photosynthesis speed and the transpiration speed diurnalvariation assumes the slight split-blip curve; the transpiration speed with only photosynthesizes the speed to assume obviously is being connected(P＜0.05). The blowhole leading diurnalvariation presents the split-blip curve,Blowhole leading assumes extremely obviously with the photosynthesis speed is being connected,(P＜0.01).The intercellular CO₂ density diurnalvariation rule basically is opposite with the photosynthesis speed change,assumes the weak split-blip curve,the photosynthesis speed and between the intercellular CO₂ density assumes the inverse correlation(P＜0.05)。Photosynthesizes the effective radiation diurnalvariation to present the weak strong and the weak the unimodal curve,Between the photosynthesis speed and the photosynthesis effective radiation assumes extremely obviously is being connected.The air relative humidity with only photosynthesizes the speed relevance not to be remarkable(P＞0.05).The atmospheric CO₂ density daily average value is 400μmol/mol, Between the atmospheric CO₂ density and the photosynthesis speed assumes extremely obviously is being connected(P＜0.01).The light compensation point is 136μmol/m²/s;the light saturation point is 1206μmol/m²/s.theCO₂ compensation point is 180μmol/mol;the CO₂ saturation point is 852μmol/mol.3.Applies fertilizer the experiment through the orthogonal to obtain that Applies fertilizer best the proportion is Urea:Calcium superphosphate:Potassium sulfate=1.2:0.56:1.68.4.The Best recovery time is Mid-June and Mid-July.The innovative content mainly includes:(1) It has found out the seed habit and the growth developmental mechanism of Ixeris sonchifolia(Bge.) Hance.(2) It has determined the photosynthesis related parameter of I.sonchifolia.(3) It has determined applies fertilizer best the proportion.