the luoyang tree peony has following advantages compared with other countries ones :- the tree peony's root and lateral root ofluoyang tree peony are more vital,tree peony'sstalks are more higher and stronger ,thetree peony's is suitable for garden growing.
- luoyang tree peony more quicken growing withlarger amount of flowers.
- enjoying more kind of type of flower,luoyangtree peony owns almost all flower types inflower type taxonomy,with high evolution,luoyang tree peony's reproduction generallywas adopted splitting and grafting ,as aresult the root system is seminal and suitablefor perennial ,with the elapsing it becomemore and more stronger.
- luoyang tree peony more various flower shapesand changeable,it has a more delicate orsweet fragrance and stronger fragrance .
- the variety of luoyang tree peoniesreached to 876odd,ranks first toother peony planting areas in the world .
- enjoying preferential prices ,which lowest in the world .
the criteria for recording morphology of luoyang tree peony varieties and ecological habits 1.luoyang tree peony's criteria for recordingmorphology of varieties£º single form:1-3whorls of normal petals that are wide,large and flat with a wide-ovate,ovoid or obviate shape.stamens normal and pistils normal and fertile. lotus form:large and neat petals in 4-5slightly overlapping whorls forming the shape of a lotus flower.stamens whorls forming the shape of a lotus flower.stamens normal and pistils normal. chrysanthemum form:6whorls.petals gradually decreasing in size towards the center.stamens normal or fewer and petiole in the center of the flower;pistils normal. rose form:petals generally longer than in chrysanthemum form,becoming smaller from the outside towards the center.most stamens disappeared.pistils normal,slightly petiole,reduced or completely disappeared. hundred proliferate-flower form:two or more individual flowers of hundred proliferate form overlapping . anemone form:2-3outer whorls of wide and straight petals.stamens completely petiole and have become narrow and straight petals.pistils normal or reduced. golden-circle form:2-3outer whorls of wide and large petals.most stamens petiole,but a whorl of normal stamens remains as a golden circle between the narrow interior petals and the wide outer petals.pistils normal,or petiole,or reduced. crown form:wide and expanded outer petals.completely petiole stamens usually with the appearance of becoming larger from outside to inside,sometimes mixed with a few narrow silk-like incompletely petiole stamens.pistils are petiole,reduced or completely disappeared.the center of the flower is raised,forming a crown shape. globular form:all stamens are highly petiole with shapes and sizes similar to those of normal petals.pistils petiole or reduced.the whole flower resembles a chinese artistic ball. crown proliferate-flower form:two or more individual flowers of crown proliferate form overlapping.
2.flower parts
the peony flower is composedof the following parts:
sepals,the outer green covering of the bud,which is never transformed. petals,the colored leaves,of which there are five or more,depending on the type of flower. stamens,the male organs of the peony,consisting of the anthers,(the pollen sacs)and the filaments,which are hair-like bodies that support the anthers.the anthers are usually yellow,though the filaments may be other colors. carpools,or pistils,the female organs,which,when impregnated,form seed pods and stigmas,the tips of the carpools,which receive the pollen.the carpools are usually some shade of green,but may turn to other colors with age.the stigmas are of many different colors,varying with each variety.discs often appear asseed-like bodies of various colors around the baseof the carpools,or a sheath surroundingthe carpools as in some hybrid and tree peonies.
3.ecological habitats
the leading elements affectingthe normal growth and development ofchinese peonies are temperature and moisture,especially humidity.the various speciesand cultivator groups generally react adverselyto what is for them an unsuitable environment,and growth is hindered.for example,whencultivators of the southwest cultivatorgroup are grown in the central plains areain china,normal development cannot be reliedon,and unsuccessful production of flowerbuds due to summer heat and dry air oftenleads to a lack of flowers.exceptionally,some cultivators can adapt and bloom normally.most cultivator groups of chinese peonies,however,are very adaptable and tolerantof strong sunshine and different soil conditions.most varieties benefit from moderatesunshine and at the same time are tolerantof half shade.when in bloom,lateral shadingis beneficial and prolongs flowering.shadingis especially necessary for the cultivatorsless tolerant of sunshine.for cultivationof the southwest cultivator group in northernareas in china,shading from the midday sunis appropriate,especially in summer.
all the cultivator groupshave long fleshy roots,so that porous,fertileand deep soil on high and dry terrain isthe most suitable.mudan can grow well insoil that is generally not compressed andwaterlogged,and a sandy soil is preferableto a sticky soil.the ideal phis neutralor slightly alkaline.
4.characteristics of flowering
chinese mudan flower overmany years without a break,from a seedlingaged 4-5years to senescent plants aged overhundred years.in a normal year it takes50-60days from breaking of bud dormancyto flowering.this period varies betweendifferent cultivators.those flowering earlyor with simpler flower forms take a shorter period,but late flower-in cultivators or those withhigher rank flower forms take longer.the flowering period of different varietiesis generally 3-10days for individual flowers.the overall flowering period for a matureplant is about 25-30days.the date floweringbegins,the length of the flowering periodand flower quality depend on the variety,weather conditions and the cultivation environment.awarm winter affects somevarieties that benefit from low temperatureand results in poorer flowering,and is particularlyharmful for plants being forced.an excessively cold winter can damage budsand thus affect flowering in the next spring.at flowering time,dry and hot winds orexcessive rain shorten the flowering periodand damage flowers.
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