2023年全國碩士研究生考試考研英語一試題真題(含答案詳解+作文范文)_第1頁
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1、南京林業(yè)大學(xué)碩士學(xué)位論文幾種主栽茶樹品種光合特性及其有效成分的比較研究姓名:周賢軍申請學(xué)位級別:碩士專業(yè):森林培育指導(dǎo)教師:彭方仁20080601ThecomparatiVestudyonthephotosyntheticcharacteristicsandbiochemicalcompositionsmetabolismofmaincultiVarsAbstractAbstractPhotosynthesisisthebasisofg

2、rowthofteaplant(C口聊P,,f口sf以P,zsfs(L)),whiletheef琵ctiVebiochemicalcompositionisthebasisofitsquality。FiVemaincultiVarsofteaplantwerechoseinthisstudyThestudyonthediurnalandannualVariationofthephotosynthesis,theannualVariati

3、onofammoniaassmiliationkeyenzyme,theannualVariationofthemainbiochemicalcompositionsoffiVemaincultiVarswasdoneItwastheaimtomasterthechangelawonthethreefieldTheeffectsofphotosynthesisandammoniunassimilationkeyenzymetotheme

4、tabolicofthemainbiochemicalcompositionswerediscussedItwasconcludedthat:1Thediurnalchangeinnetphotosyntheticrateof‘Yingshuang’wasabimodalcurVe,theotherfburspeciesweresin91epeakcurvesWithlowerlightcompensationpointandhighe

5、flightsatufationpoint,thephotosynthesisabilityof‘Zhenong139’wasstrongestThenextis‘Wuniuzao’and‘Zhenong117’whichlightsaturationpointwashighandlightcompensationpointwasinthemiddleWithhighercompensationpointandlowersaturati

6、onpoint,thephotosynthesisof‘Lon薊ing43’and‘Yingshuang’wererelatiVelyweakThe“noonbreak”mightbetheembodyofitsphysiologicalrhythm,TheoptimumphotosynthetictemperatureoftheteaplantwhichcultiVatedingreenhousewashigherthanthatin

7、neldUsingtheNLINERofSAS,themodelbuildinghadgreaterphysiologicalsignincance2TheannualvariationinnetphotosyntheticrateofWuniuzaoand‘Zhenong117’werebimodalcurves,theotherspeciesweresinglepeakcurves,ThewholeleVelnetphotosynt

8、heticratesoffiVeVairetieswerehighTheannualphotosynthesisabilityof‘Wuniuzao’and‘Zhenongl17’wasstrongest,thenextwere‘Zhenongl39’and‘Yingshuang’,andthelastwas‘Lon由ing43’3Theannualchangeofthemainbiochemicalcompositionsofdiff

9、erentspeciesa11showedlikewaVed,andvariouscomponentswerecloselyrelatedwitheachotherInspring,thebiochemicalcompositionsweremoderateTheyincreasedatthebeginningofspringanddecreasedattheendTheincreaseprocessalsoshowedinsummer

10、andautumn,theywerealmostdecreasedwhileinwinterexceptaminoacidwhichdecreasedatthebeginningofwinterandincreasedtoahigherlevelattheendofwinterTeapolyphenol,caffbineandaminoacidwereVerysignificantlypositivecorrelatedtoeachot

11、her’theratioofteapolyphenolandaminoacidweremainlyinnuencedbytheteap01yphenol,andlowerinfluencedbytheamilloacid4ThechangesofthebiochemicalcompositionsinsummerandautumnwereVerysignificantlydif代rent,andtheirvariationofdiffe

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