棉花纖維品質(zhì)空間分布規(guī)律及差異性.pdf

1、西北農(nóng)林科技大學(xué)碩士學(xué)位論文棉花纖維品質(zhì)空間分布規(guī)律及差異性姓名：孟俊婷申請學(xué)位級別：碩士專業(yè)：農(nóng)業(yè)推廣農(nóng)村與區(qū)域發(fā)展指導(dǎo)教師：海江波20081001CHARACTERIZATIoNoFⅥ～RIANCEoFFIBERQUALITYPROPERTIESONDIFFERENTBOLLNODEABSTRACTThestudyaimedtocharacterizethedifferenceandsignificanceofdifferenceo

2、ffiberfromdifferentboll—nodebasedonphenotypingthefiberqualitypropertiesoffibersamplefromdifferentboll—nodeofseveralcultivars111eanalysisonfiberqualitytraitdatafromcvZhongmiansuo44intwoyearswouldmaketheeffectofyear(annual

3、weather)clear；theanalysisonfiberqualitytraitdatafromsixcultivarsinoneyearwouldcharacterizetheruleofthecomparativesuperiororpoorerfiberqualitypropertiesoffiberfromdifferentboll—nodeonacottonplantThedataofcVZhongmiansuo44i

4、ntwoyearsindicated：forl吼to4thbollnodeonthesamefruit—branchthemoredistantfromthestemthemorepoorerfiberquality；for1吼to12mfruitbranchonaplantthemorehi曲fromtherootthemorepoorerfiberqualityThefiberqualitydifferencesweresignif

5、icant(atPhomozygouspestresistance(HoPR)cultivarspure—line(PL)cultivarsThecoefficientofvariance(cv)ofindividualtraitis：4498％forMIC，3347％forCOL，2178％forSPU，1524％forSTR，1114％ofreflectance(Rd)，890％ofUHM，715％ofELO，450％offiber

6、uniformity(FU)；(2)themoredistanceofbollnodefromthestem，themoreshortfiber，reduceMIC，poorSTRlowFUandRd，buthighELOandCOLForfiberfromdistantboll—nodefromthestem，theSPUdecreasedforHyPRandHoPRandnotforPL(3)Basedonthedataoffibe

7、rfroml虹and2加bollnodeineveryfruitbranchofsixcultivars，theUHM，F(xiàn)U，STR，MIC，Rdweresuperiorforthefiberfrom15‘to5m，butgraduallypoorfor6mtothehighestfruit—branchThisindicatedthatthefiberfromlowerfruitbranchismoresuperiorthanthat