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ID:31950768
大小:1.27 MB
页数:38页
时间:2019-01-29
《不同直链淀粉含量的水稻品种籽粒淀粉和蛋白质积累特性的.研究》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、StudyoncharacteristicsofstarchandproteinaccumulationindifferentamylosecontentricevarietiesMasterstudent:JIEHou-ShengAssociateprof'.LITianUNIVERSITY,YAAN.SICHUAN,625014,CHINAAbstractsInthisexperiment,4ricevarieties(Snowpearl,themostinferioramyloseconten
2、t,Koshihikari,theloweramylosecontent,Gangyou527themediumamylosecontent,Hoshiyutaka,thehigharnylosecontent)wereusedtostudythecharacteristicsofthegrainstarchandproteinaccumulationthroughageneralmethodofcultivationandmanagement,Themainresultswereasfollowe
3、d:1.Duringgrainfilling,thehighamylosecontentricevarietieshavehigherChlorophyllcontent,widerleavesareas,highersoublesugarcontentinstem,sheaths,leaves,largerexportamountofsolublesugarinleavesandsheathsandlongercontinuanceofsolublesugarsupplyinstemthanlow
4、amylosecontentricevarieties.2.Thesolubleproteinofstems,sheathsandleavesofallvarietieswerehighattheearlyfillingstage.Anditgraduallybecamelowwithgraingrowing.Andthesolubleproteinofleaves,sheathsofmoderateandhighamylosecontentricevarietieshaveanincreasest
5、ageofsolubleproteinwhichlasts3~9daysafteranthesis,thecauseofsolubleproteinscontentandchangesinleavesandsheathsofdifferentricevarietieswasdecidedbytheendproteincontent,3.Thecontentofsugarwasthehighestatthestartoffillingstage,anditbecamelowduringthelater
6、development.Thecontentofsugarwasconsumedbefore9daysofathesisinhighamylosecontentricevarieties.Thecontentofsugarwasrareafter21daysofathesisinsuperlowamylosecontentricevarieties,andsugaroflowamylosecontentwaskeepingalowsupplementlevel.Thesugarofathesismo
7、derateandhighamylosecontentricevarietieswentupwiththeincreaseofblowingdays.4.LotsofFreeaminoacidinallvarietiesaccumulatedduringtheearlystageofgrainfilling.Anditdecreasesstepbystepduring30daysafteranthesis.Freeaminooflowandhigharnylosecontentvarietiesac
8、iddipsquickly.Andthelackoffreeaminoacidoflowandhighamylosecontentvarietieswasobviousinthelatergrainfillingstage.5.Theaccumulationofamyloseofallvarietiesagreedwiththechangeofgrainweight.Amylosecontentofgrainwaslowduringearlygrainfilling,
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