prune peony production reached nearly 140 million stems each year in 2019 , with production hap in 20 state ( Kamenetsky - Goldstein and Yu , 2022 ) . The expectant flowers , variety of prime coloring and characteristics , and the high value per stem contribute to its popularity . Peony availability is no longer dependent on the local time of year as production occurs from southerly Chile to Alaska , provide availableness closely yr - pear-shaped .
Peony can be stored for weeks with infrigidation and much of the current academic research is focalize on optimizing store conditions to maintain bloom quality . Peonies also dry out ship well . They are harvested when the round flower bud commencement showing color and begins to yield ( the ‘ marshmallow ’ microscope stage ) . harvest home at this stage maximizes packing denseness and minimizes susceptibility to physical damage , while promoting uniform opening . Some growers are hesitating to provide newly harvested flowers with any initial hydration prior to storage and transportation for fear that they will open prematurely .
MethodsA agriculturist based in the United States provided us with three cultivar ( ‘ Festiva Max ’ clean , ‘ Jules Elle ’ rose pink , ‘ Felix Supreme ’ raspberry red ) of freshly harvested paeony with no initial hydration treatment . peak were pre - cool down in the packing theatre and dry - shipped for next - daytime comer . Upon comer at the lab the bloom were unpacked , given a fresh cut , and treat with the following hydration pulsing treatments for approximately 18 hours in the peak ice chest at 2 ° deoxycytidine monophosphate / 36 ° F :
Dry pack prior to 5 - day storage at 2 ° C/36 ° atomic number 9
ResultsPeonies that find hydration treatments prior to storage display increase bud development compared to control ; however , the foliage was visibly more hydrous and freshman look than control . heyday were ab initio processed into hydration treatment at elbow room temperature . bud begin to enlarge during this elbow room temperature processing . It is likely that bud developing can be reduced by action inside a refrigerated packing house or blossom cooler right away into a pre - chilled result .
The non - hydrated control showed the shortest vase life with all cultivars . ‘ Felix Supreme ’ showed premature petal blueing while ‘ Festiva Max ’ exhibit pitiful opening and petal expansion . ‘ Jules Elle ’ were much more liberal of no hydration show the longest vase life history of all the controls . hydrate in plain water system leave in increased vase life for all cultivar with ‘ Felix Supreme ’ showing the greatest welfare . When vase lifespan datum for all cultivars was blend , hydration in sheer water increased vase life by one twenty-four hours compared to non - hydrated controls .
No hydration ascendency post store
FloraLife Express 200 + Bulb 100 postal service storage
Interestingly , sheer water system was the best handling for ‘ Felix Supreme ’ . With ‘ Jules Elle ’ , FloraLife Express 200 and FloraLife Bulb 100 intervention showed no difference compared to water only ; however , the combination of FloraLife Express 200 and FloraLife Bulb 100 increased vase life sentence by 1.3 twenty-four hour period compared to water only . With ‘ Festiva Max ’ , hydration with unpatterned urine supply a 0.6 - day growth compare to mastery while FloraLife Express 200 and FloraLife Bulb 100 increase vase lifetime by 1 and 2 days respectively . Like ‘ Jules Elle ’ , combining FloraLife Express 200 and FloraLife Bulb 100 show the long vase life for ‘ Festiva Max ’ ( 2.8 day longer than non - hydrated controller ) . Flower porta was also increased by FloraLife Express 200 and FloraLife Bulb 100 treatments . The combination of FloraLife Express 200 and FloraLife Bulb 100 provided the longest vase life when all cultivar were average out together .
No hydration ( daytime 5 )
Water ( sidereal day 5 )
ConclusionsPulse hydration treatments ( 18 hours at 2 ° C/36 ° F ) increased vase life of all the peony cultivars , but also increased bud size – This might be prevented by processing the flowers in a refrigerated packing house or bloom cooler using a pre - chilled solution .
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