Study On The Tree Peony’s Response To Flowering Regulation Technique Of Four Kinds Of Plant Growth Regulating Preparations

Tree peony has great ornamental value as traditional famous flower of China,but a veryshort and intensive florescence. This paper carries on a research on condition of responseto B9, Calcitonin, Salicylic Acid and PP333of several tree peony varieties throughexperiment of peony florescence control in Xi Baipo. The results show:1.(1)Flowerscence can not be extended when10000mg/L B9starting from differentstages is sprayed to ‘Luoyanghong’ and ‘Zilankui’, it can evidently lower floral initialrate and short spend life,which has distinctive effect on flower diameter,so it has thebest effect to extend normal flowerscence and short abnormal flowerscence with ck.(2)It can evidently increased floral initial rate when B9in different concentration is sprayedto ‘Daojin’and ‘Meiguizi’.Total flowerscence can be extended1～2.7d and the end of theflowerscence can be extended0.40～0.60d when B9in different concentration is sprayedto ‘Daojin’, it can extend spend life and has distinctive effect on flower diameter, whichhas the best effect to extend total flowerscence, the end of the flowerscence and shortabnormal flowerscence with10000mg/LB9, which has the best effect to extend the end ofthe flowerscence with20000mg/L B9.(3) The initial flowerscence can be extended0.70～1.30d and0.10～0.30d when B9andPP333in different concentration is sprayed to ‘Luoyanghong’ daily starting from seting upstage, it can evidently extend spend life, increased abnormal rate and increase the flowerdiameter. Total flowerscence can be extended0.20～1.20d, the end of the flowerscencecan be extended1.30～2.30d when B9in different concentration is sprayed to‘Luoyanghong’, it can evidently lower floral initial rate,which has the best effect to extendflowerscence with100mg/L B9, to extend initial flowerscence and short abnormalflowerscence with200mg/L B9, to extend total flowerscence and the end of theflowerscence with75mg/L PP333, to extend initial flowerscence and short abnormalflowerscence with50mg/L PP333.2. It has distinctive effect on flowerscence when Salicylic Acid in different concentration issprayed to ‘Daojin’, it can evidently lower floral initial rate, which has the best effect toextend total flowerscence and short abnormal flowerscence with500mg/L SalicylicAcid,to extend initial flowerscence and the end of the flowerscence with ck.Initialflowerscence can be extended2～3d when Salicylic Acid in different concentration issprayed, it can evidently increase abnormal floral rate, short spend life and the flowerdiameter, which has the best effect to extend total flowerscence with ck, to extend initialflowerscence and short abnormal flowerscence with1000mg/L Salicylic Acid.3. Total flowerscence can be extended1.90d and1.34d when80mg/L Calcium in different concentration is sprayed to ‘Luoyanghong’and ‘Zhihong’. It has distinctive effecton initial flowerscence and the end of the flowerscence when Calcium in differentconcentration is sprayed to ‘Luoyanghong’, it can evidently increase floral initial rate,extend spend life and increase the flower diameter, abnormal floral rate is0, which has thebest effect to extend initial flowerscence,the end of the flowerscence and short abnormalflowerscence with40mg/L Calcium. Initial flowerscence and the end of the flowerscencecan all be extended1～4d when Calcium in different concentration is sprayed to‘Zhihong’, it can evidently lower floral initial rate, increase abnormal floral rate, shortspend life and the flower diameter, which has the best effect to extend initialflowerscence,the end of the flowerscence and short abnormal flowerscence with160mg/LCalcium.4. B9and PP333with concentration ratio is sprayed to ‘Luoyangchun’ and‘Yinhongqiaodui’,total flowerscence can be extended3.67d and initial flowerscence canbe extended2d when B9and PP333with concentration ratio of280：420is sprayed to‘Luoyangchun’,it can evidently lower floral initial rate and short the flower diameter,theabnormal floral flowerscence is0except B9and PP333with concentration ratio of280：420,the abnormal floral flowerscence of B9and PP333with concentration ratio of280：420is9days, spend life can be extended4.78d when B9and PP333with concentration ratio of280：420is sprayed, which has the best effect to extend total flowerscence and initialflowerscence with B9and PP333with concentration ratio of280：420. Spraying B9and PP333of different concentration and the ratio is3:2mixed reagent, small concentration of mixedreagent can prolong total flowerscence0.67d, initial flowerscence are not in advance, theend of the flowerscence can be extended2d, floral initial rate can rise2.21%with bigconcentration mixed reagent, much single flower had a tendency to shorten life, flowerdiameter are reduced, deformity rate increased significantly, but the deformity flowering isshortened.