Study On The Technique System Of Propagation And The Character Of Photosynthesis Of Ardisia Japonica (Hornsted) Bl

This experiment gives a preliminary study in characteristics of Ardisia japonica (Hornsted) BI in biology,photosynthesis,seeds germination,and breeding.The results are summarized as the following,1.Ardisia japonica(Hornsted) B1 grows during March to December.Its leaves are in dormancy stage from December.It blooms between August and September,and fruits between October and March next year.During importing and planting,it got used to the new environment and grows well with goo heat and cold-resistant.It survives both in summer and winter without any safeguard.The planting and taking managing are neither worried.Moreover no plant diseases and insect pests are found during the experiment.2.Its compensation and saturation points are 11.28 and 1027μmol·m^-2s^-1, respectively.These numbers show that Ardisia japonica(Hornsted) B1 is a typical shady as well as sunlit bearable plant.3.Photosynthesis study reduces that Ardisia japonica(Hornsted) B1 is a shady plant with an effective photosynthesis in range between 40%and 50%of natural sunlit and humidity RH＞40%.4.Rising rate,T_r,is a primary factor effecting the net photosynthesis of Ardisia japonica(Homsted) B1,with a correlative coefficient r = 0.93(P < 0.01).In summer,T_r is positive correlative to stomatic conductivity Cond,with r = 0.79 (P < 0.05).In autumn,the photosynthesis available radiation plays an important role in the net photosynthesis of Ardisia japonica(Hornsted) B1,with r = 0.85 (P < 0.01).5.The rate of moisture absorbing for Ardisia japonica(Hornsted) B1 decreases from spring to autumn,which results in its drought-resistant.6.The storage in sealed bottle embedded with humidified sand in 4℃ensures that the seeds of Ardisia japonica(Hornsted) B1 germinate effectively in temperature between 20℃and 25℃.7.Appropriate concentrated GA3 improves the germinating of the seeds ahead of schedule.A 150mg/1 GA3 gives the best germination with the same seed soaking duration.8.Oil of vitriol restrains the seed germination of Ardisia japonica(Hornsted) B1.The germination rate decrease to 66.5%from 71.9%by soaking seeds with oil of vitriol.9.Bed with Plant ash and sand in volume ratio of 1:1,the most ideal one,gives a 94.5%rootage,as well as 50%good rootage quality,well advantage to the other 7 beds(P≤0.05).10.A 300mg·1^-1 IBA produces 96.9%footage and a 51.0%footage quality, remarkable different(P≤0.05).11.Half-lignifications,burgeon,and fully lignifications correspond to 87.2%,72.3%, and 67.9%rootage,respectively.The first differs remarkably to the third (P≤0.01).,while the second lies between and differs remarkably with the third too.