野牛草遺傳力、配合力的估測(cè)及坪用性狀的觀測(cè).pdf

1、中國(guó)農(nóng)業(yè)大學(xué)碩士學(xué)位論文野牛草遺傳力、配合力的估測(cè)及坪用性狀的觀測(cè)姓名：王曉榮申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：草業(yè)科學(xué)指導(dǎo)教師：周禾牛建忠2002.5.1StudyofBuffalograssCombinationAbilityandHeritabilityandObservationofCharactersUsingforTurfMastercandidate：WangXiaorongSurpervise：ProZhouHeSeniorEng

2、ineerNiuJianzhongAbstractWestudiedtheploidylevelandlengthandamountofstolonabout63materialsofbuffalograssfromdifferentsourceAndselected8materialsaccordingtoitswellgreen。periodcharactersmakecrossexperimentsadoptingincomple

3、tenessdiallelcrossexperimentdesignAndstudiedleafcoloranddegreeofturningyellowofcrossparentandoffspringofhybridizationBasingonthecrossexperiment，westudiedgeneralcombinationabilityheritabilityandheterosisofcrossparentAccor

4、dingtAPDmolecularmarks，westudiedthegeneticpolymorphismandgeneticdistanceamongthematerialsTheresultindictedthattherewerethreeploidlevelsamongthematerial：tetreploid，pentaploidandhexaploidThepercentofeveryploidlevelis13％，24

5、％and63％respetivelyIntetreploidandpentaploidthereWaSonlysignificantdifference(P005)betweenthelongesLmostandtheshonesLleastmaterialwhenestimatingbylengthandamountofstolonextendingAmonghexaploidtherewassignificantdifference

6、(P005)amongthematerialsWhenestimatingbyrelativevalueoflengthandamountofstolonextending，amongtetreplod，thebestmaterialswereNo8。No35andNo24；amongpentaploid，thematerialNo45，No54。No25andNo1werethebestmaterials；amonghexaploid

7、，materialNo3，No7，No20，No22andNo53werethebestmaterialsInthreeploidlevelsignificantdifference(P005)onlyexistedbetweenhexaploidandpentaploidwhenestimatingbylengthofstolonextendingAndthereWasnosignificantdifference(Po05)inth