5-氨基酮戊酸對兩系雜交粳稻產(chǎn)量形成和光合生理的影響.pdf

1、華中農(nóng)業(yè)大學(xué)碩士學(xué)位論文5氨基酮戊酸對兩系雜交粳稻產(chǎn)量形成和光合生理的影響姓名：姚素梅申請學(xué)位級別：碩士專業(yè)：作物栽培學(xué)與耕作學(xué)指導(dǎo)教師：王維金2002.5.1AbstractUsingtheTwolineJaponicaHybridriceEjingzalasmajormaterials，effectsofdifferentconcentrations(10mg／L、30m∥L、50mg／L、70mg／L)of5Aminolevuli

2、nicacid(ALAlappliedatinitialheadingstageonthephotosyntheticphysiologyandtheyieldformationofthetWOlineJaponicahybridricewerestudiedThreecharacteristicsofphotosyntheticphysiologythatsignificantlycorrelatedwithgrainripening

3、percentagewereobtainedbygreycorrelationanalysisTheRichardsequationwasusedtodescribegrainfillingprocessofsuperiorandinferiorgrainsTherelationshipsbetweengrainfillingcharacteristicparametersandstagegrainfillingparametersan

4、dgrainweightwerethoroughlyprobedTheresultswereasfollows：1ComparedwiththecontrolALAincreasedgrainyieldgrainripeningpercentageand1000grainsweightby217％～1202％，180％～1218％，O28％～146％respectivelyTheconcentrationof30mg／LALAposse

5、ssedthehighestyieldandthedifferenceofyieldbetween30mg／LALAtreatmentandthecontrolwasverysignificant2ThephotosyntheticphysiologyofthethreeleavesfromthetopWasobviouslypromotedbyAItA：attheearlyandmiddlegrainfillingstage，thec

6、hlorophyllcontent，thesolubleproteinscontentandtheratioofsheathweighttoleaveweightofALAtreatmentwerelargerorhigherthanthoseofthecontrol；atthelategrinfillingstage，thegreenleafareaofthreeleavesfromthetop，thechlorophyllconte

7、ntandtheactivityofSODwereincreasedbyAIAInbriefALAcouldimprovethephysiologicalactivitiesofthethreeleavesfromthetopanddelaythesenescenceofthematthelategrainfillingstage，whichcouldleadtoincrementofphotosyntheticrateandaugme

8、ntofphotosyntheticproductionTheylaidthematterfoundationforthegrainyieldformation3AIAhaddifferenteffectsongrainfillingcharacteristicparametersofdifferentgrainpotentialsALAsli曲tlydecreasedthemaximumgrowthweightofsuperiorgr

9、ains，butmarkedlyincreasedthatofinferiorgrainsAI。Aprolongedthetimereachingthemaximumfillingrateofsuperiorgrainsfor004d～123d’butshortenedthatofinferiorgrainsfor016d～296dALAdecreasedthemaximumfillingrateofsuperiorgrainsbyO0

10、0279／100kernelsd～002169／100kernelsdbutincreasedthatoftheinferiorgrainsbyO00109／100kernelsd～001669／100kernels正ALAprolongedtheactivefillingperiodofsuperiorgrainsfor018d～165dbutshortenedthatofinferiorgrainsfor033d～456dALAha