外源ABA（脫落酸）對水稻產(chǎn)量和品質(zhì)的調(diào)控研究.pdf

1、西南農(nóng)業(yè)大學(xué)碩士學(xué)位論文外源ABA（脫落酸）對水稻產(chǎn)量和品質(zhì)的調(diào)控研究姓名：李智念申請學(xué)位級別：碩士專業(yè)：作物栽培與耕作學(xué)指導(dǎo)教師：王光明2003.5.1ABA(abscisicacid)Candidate：LIZhiNianTeacher：WANGGuangMing(AgronomyandLifeSciencesCollegeofSouthwestAgriculturalUniversityChongQing400716)Abstra

2、ctksoneofseveralendogenesisplanthormones，ABAhasabundantphysiologicalfuctions，itparticipatesinmanyvitalprocessesinplantgrowthanddepartmentTherewerefewrelativestudiesonABAinriceThroughtheexperimentationmethodofcontrollingi

3、nlaboratoryandfield，thisarticlestudiedtheregulationeffectsofexogenousABAonseedgermi_nation，seedlinggrowth，tiller，yieldtraitsandqua【itytraitsofriceandthephysiologiCalmechanisminordertoprovidescientificbasesforABAappliance

4、inriceproductionTheresultswereshewedbelow1SoakingtreatmentwithABAsolutionAfterSOakingtreatmentwithABAsolutiontheactivityofa—starchenzymeinendospermreducedABAhadrestrainingeffectono—starchenzymeThegerminationrateofricesee

5、dreduced，buttheeffectofABAonthegerminationrateofriceseedwasnotsignificantSoakingriceseedwithABAsolutionwasbenefitforseedling’sgroWth，theheightofseedlingincreased，the1earageincreasedlittle，thenumberoflowertillerincreased1

6、itt【e，theneatweightofseedlingincreasedThecontentofdissociativeaminoacidreducedwiththeincreasingofconcentrationofABAsolutionthecontentofsolublesugarincreasedwiththeincreasingofconcentrationofABAsolutionthecontentofchlorop

7、hyllincreasedwiththeincreasingofconcentrationofABAsolutionABAadvancedthesynthesizeand!rsansformofsubstanceinseedling：ioakingriceseedwithABAsolutionaffectedtheprocessoftilleroccurringthefinaltiIi!rnumberincreasedsometreat

8、ments(especially3125101mol／L)precededthecl【ina11i：eriods：；oakingriceseedwithABAsolution，thepaniclehmgthincreasedundersomeconcentrationsTheresponseoftheprimarybranchestodifferentconcentrationsvariedindifferentvarietiesThe

9、secondarybranchesincreasedundersomeconcentrationsThespikeletsperpanicleincreasedTheshrunkengrainratereducedmostlyTheweightof1000grainsincreasedTheyieldincreasedTheeffectsofsoakingtreatmentwithABAonallcharactersaboveareno

10、tSignificant2TreatmentwithABAsolutionindifferentiationperiodofinfantpaniclesprayingABAsolutionticeleafindifferentiationperiodofinfantpanicle，ifthetreatmentwasbeforethedifferentiationperiodofthesecondarybranchesandspikele

11、tsanlage，thepaniclelengthandtheprimarybranchesnuⅡIberandthespikeletsperpanicleincreasedThesecOndarybranchesincreasedundersomeconcentrations，Theshrunkengrainratereducedmostly，Theweightof1000grainsincreasedundersomeconcent