狼尾草、芒草、柳枝稷的耐盐能力鉴定与评价

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SaltToleranceAssessmentofPennisetum，Miscanthus，and Panicumvirgatum

ZHANG Hui，LI Mengqi，LILi，CHENKun，ZHENG Mandi，XIAO Hui （Institute ofAgricultural Kesourcesand Environment，Tanjin AcademyotAgriculturalSciences，anjin 3UU384，China）

Abstract：Toinvestigateteefectsofsalttresonhehysiolgicalgowthofplantsandsrnforsuperiorsalttolerantspeies，we conductedanexperimentusingfourindsofPennisetum（PensetumsetacemubrumennisetumalopecuroidesLitleBuy Penisetumdlopeurodesousui'，esetulopecurodesreeindsofisantus（scatussinesisregatussct hussinensis，Miscntussinensisianu）andoeindofPanicumgaum，toveatetefectsofsalttrssoeioloicalgrowthofplants.Withthesalt-freetreatmentastecontrol，teplanthight，leafwatercontent，prolinecontet（Pro），alodialdehyde（MDA）content，superoxidedismutase（SOD）activitycatalase（CAT）activityweremeasuredunderdiferentsaltcocetration treatments （ 0.2% ， 0.4% ， 0.6% ， 0.8% ， 1.0% ， 1.2% ）.Themembership function method wasadopted tocomprehensively evaluate theirsalttolerance.Thesalttreatmetducdtelantheight，leafwatercontent，SOctiityandCActiityandicasdo tentsofProandMDA.Thesalttoleranceof theeightplantmaterialswasintheorderofPensetumlopecuroidesRousui>Pnisetum alopecuroides Little Bunny Pennisetum setaceum Rubrum γ> Pennisetum alopecuroides >Miscanthus sinensis Variegatus'>Panicum virgatum>Miscanthus sinensis > Miscanthus sinensis Xianxu'.In conclusion，this study provides reference for the application of greening plants in urban saline-alkali soil.

KeyWords：Pennisetum;Miscanthus;Panicum virgatum;evaluationof salt tolerance;subordination functionmethod

土壤盐渍化是一个严峻的全球性资源与生态问题，制约了农业可持续发展和生态稳定性。（剩余9472字）