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1、福建農(nóng)林大學碩士學位論文烤煙煙堿累積規(guī)律和降堿技術(shù)的研究姓名：高文霞申請學位級別：碩士專業(yè)：作物栽培學與耕作學指導教師：江豪2003.4.1烤煙煙堿累積規(guī)律尊Ⅱ降堿技術(shù)的研究摘要本試驗以K326拋供試晶轉(zhuǎn)，試驗設(shè)3個鰳豢，每個因素兩個農(nóng)平(施氮鼙7kg·666．7m2、9kg·666．7m2：單株留葉數(shù)18片和20片，噴施a-NAA和噴施瀵l農(nóng)>，共8個處理，隧規(guī)區(qū)縫{{}捌，耋復3次。定點定攘對整潤黧檬豹生騫遴程、農(nóng)藝性狀進行觀察。對不同生育階段的鮮葉年『1根、不間部位鮮葉及烘烤厝不藺等級蒙煙爆虢含鼙遴彳亍測定，薺對各個處理潮跨豹經(jīng)濟性獲進符數(shù)
2、據(jù)統(tǒng)計分析。結(jié)果表明，煙株鮮葉和根的煙堿含鬣隨著煙株生育期的延長而增加，柑間成熟發(fā)。F，隨潮時部位的上升而升高。降低施氨鱟，增加單株留計數(shù)及噴施a—N觚都可以降低煙株的煙堿禽量。方差分析結(jié)果表明，試驗中施N量、單株整葉數(shù)、噴施a—NAA與否對煙葉烤后縫濟性狀、原煙的煙堿含量影響極顯著；處理為施氮嫩9kg·666．791．2、攀椽蜜q+數(shù)20片、噴旌a州矗盎豹潮》}產(chǎn)量、產(chǎn)蠖、均傍、上等煙比例、上中等煙比例最高，各部位煙葉的煙堿含量適中，煙葉明‘用性最強。關(guān)鍵謠：烤煅；煙堿：施氮精；留葉數(shù)；d—NAA烤煙煙堿累積規(guī)律和降堿技術(shù)的研究STUDIESo
3、NACCUMULATIoNCHARACTERISTICSANDREDUCINGMETHODS0FNICOTINECoNTENTSoFFLUE．Cl瓜EDToBACCoAbstractTheexperimentwasconductedtostudyK326，avarietyofflue—curedtobaccoundertwodifferentquantitiesofpurenitrogenapplied(7磚·666．7m。，9kg·666．7m-2)，twodifferentnumbersofleavesremained(18perplant，
4、20perplant)andeithersprinklingCt-NAAofcleanwater．nus，therewereeightdifferenttreatments．Theywerearrangedatrandomandrepeatedthreetimes．A11growingStagesandagronomiccharacterswereobserved；Nicotinecontentsoffresh1eavesandrootsofdifferentgrowingstages，freshleavesofdifierentstalkpos
5、itionandcl／redleavesofdifferentgradesweredetermined；Economiccharactersofalltreats’wereanalyzedbybiostatisticmethods．Theresultsshowedthatthemoredaystobaccoplantshavegrownsincetransplanting，themorenicotinecontentsoffresh1eavesandroots；whileatthesamematurity，thosewereincreasedwi
6、ththeincreasingofthestalkposition．ⅥIriarlceanalysisresultsshowed也atquantitiesofpurenitrogenapplied，numbersofleavesremainedandsprinklinga—NAAornothadgreatefrectsoneconomiccharactersandnicotinecontentsafcuredleaves．Loweringthequantitiesofpurenitrogenapplied；increasingthenumbers
7、of1eavesremained，andsprinklingⅡ一NAAa11COulddecreasenicotinecontentsoftobaccoplants．Theyield，outputvalueAverageprice，high-qualityratioandhigh-middle-qualityratioofthetreatmentwhichappliedpurenitrogen9kg·666．7m。，20leavesremalnedperplantandsprinkledQ-NAAwerehighest；nico'tinecont
8、entsweremoderateina11parts，whichbestsatisfied也edemandofprescriptioni
