烤烟烟碱累积规律和降碱技术的研究

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1、福建农林大学硕士学位论文烤烟烟碱累积规律和降碱技术的研究姓名：高文霞申请学位级别：硕士专业：作物栽培学与耕作学指导教师：江豪2003.4.1烤烟烟碱累积规律尊Ⅱ降碱技术的研究摘要本试验以K326抛供试晶转，试验设3个鳓豢，每个因素两个农平(施氮鼙7kg·666．7m2、9kg·666．7m2：单株留叶数18片和20片，喷施a-NAA和喷施瀵l农>，共8个处理，隧规区缝{{}捌，耋复3次。定点定攘对整润黧檬豹生骞遴程、农艺性状进行观察。对不同生育阶段的鲜叶年『1根、不间部位鲜叶及烘烤厝不蔺等级蒙烟爆虢含鼙遴彳亍测定，荠对各个处理潮跨豹经济性获进符数

2、据统计分析。结果表明，烟株鲜叶和根的烟碱含鬣随着烟株生育期的延长而增加，柑间成熟发。F，随潮时部位的上升而升高。降低施氨鲎，增加单株留计数及喷施a—N觚都可以降低烟株的烟碱禽量。方差分析结果表明，试验中施N量、单株整叶数、喷施a—NAA与否对烟叶烤后缝济性状、原烟的烟碱含量影响极显著；处理为施氮嫩9kg·666．791．2、攀椽蜜q+数20片、喷旌a州矗盎豹潮》}产量、产蠖、均傍、上等烟比例、上中等烟比例最高，各部位烟叶的烟碱含量适中，烟叶明‘用性最强。关键谣：烤煅；烟碱：施氮精；留叶数；d—NAA烤烟烟碱累积规律和降碱技术的研究STUDIESo

3、NACCUMULATIoNCHARACTERISTICSANDREDUCINGMETHODS0FNICOTINECoNTENTSoFFLUE．Cl瓜EDToBACCoAbstractTheexperimentwasconductedtostudyK326，avarietyofflue—curedtobaccoundertwodifferentquantitiesofpurenitrogenapplied(7砖·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