牡丹、芍药组间远缘杂交花粉萌发与 胚胎发育的形态学分析

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1、河南农业大学硕士论文wassimil《萄矿show占a⋯6葫茹i&矗谳ai畿稀蠢篱谳鬻；；巯精攀；辩=螽攀stucture：Thesphericalprotrusionsonthestigmasurfaceofthreemaleparentwaslesserandmoreobviouswhilethesphericalprotrusionsoffemaleparent。Fen如nn’Wasbiggerandmorevague．4ilnthecrOSSofPlacfiflora’Fenyunu’×Postii’Fengdanbai’地methodofdelayedpollinatio

2、nandtherepeatedpollinationhadbypassedthepre—fertilizationbarriers；Intheprocessoffertilization,germinatedpollensweremuchobservedonstigmas，thepollentubespassedonthetotallengthofthestyles，andprotrudedtotheovaryCanobservedbythefluorescencemicroscope：ForPlactiflora’Fenyunu’×户suffruticosa‘Luoyanghon

3、g’，themethodofmentorpollenpollinationandthedelayedpollinationalesuitableforbypassingpre-fertilizationbarriers，Thequalityandquantityofpollengerminationandgrowthofthepollentubeswerelargest,madpollentubeswhichwereprotrudedtotheovaryCanfoundpartly．ComparedwiththeselfingofPlactiflora’Fenyunu’，thege

4、rminatedpollensandtheyieldofpollentubelengthweremoreless．5。0d～20dafterpollination．twohyb—dcombinationscarpeldevelopednormally,obviouslyincrease，asmallerivoryovule，20dafterthevastmajorityofcarpelOCCUrgraduallyatrophic，ovulegraduallyatrophicinblack，carpelopenat100d，notabortiveovulesdevelopintoda

5、rkbrownseeds；Combinationofselfingafterpollination，carpeldevelopednormally,whenthe40dovuleenlargement,100d，carpelisdarkbrown，seedisdarkbrown．6．Afterpollination，watchthehybridizationcombinationofembryonicdevelopment，foundthat10d～20dafterpollination，thevastmajorityofthefertilizedeggofdisintegrati

6、onoftheabnormalphenomenon，hasbeenobservedinthelaterobservingnormalembryonicdevelopmentprocess；Afterselfpollination，thevastmajorityofnormalembryonicdevelopment，canbeobservedinthecompleteprocessofembryonicdevelopment；Inhybridcombinations．Plactiflora’Fenyunu’×Postii’Fengdanbai’settingpercentageis

7、4．13％．Plact(flora’Fenyunu’×Psuffruticosa‘Luoyangbong’settingpercentageis3．14％．thesellingof尸lactiflora’Fenyunu’settingpercentageis68．34％thecrosscombinationsismuchhigherthanthehybridcombinations．Keywords：Treepeony；：Herbaceouspeony；Distant