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高文玲1,王 波2,陈卫平2,刘金根2,卞新民2(1., 210095;2., 210095) :模拟香根草在海边滩涂湿地上的生长环境,采用不同盐分浓度的海水浇灌移栽后的香根草,试验结果显示,不同浓度海水灌溉会影响香根草移栽后的成活率及其地上部和地下部器官的生长发育。不同浓度海水对香根草移栽后的成活率影响显著,0倍海水浓度处理香根草成活率100%,而2倍海水浓度处理移栽香根草则全部死亡,并且供试的4个处理,随着海水浓度升高抑制香根草生长发育的效应增强,0倍海水浓度灌溉对香根草生长发育没有抑制作用,0.5倍海水浓度和1倍海水浓度香根草生长受轻微影响,且两者之间没有显著差异,但2倍海水浓度浇灌香根草地上部的分蘖、绿叶数、株高、茎叶干重和地下部的最大根长、一级根条数、根体积、根干重及根茎比等性状指标都显著受到抑制。 :香根草,海水浓度,生长发育 :S543.071 :A :1009-5500(2008)01-0028-05 (Vetiveriazizanioides),,,(、、、、、)。,,。2080,、、、、[1-4]。 ,[1,2],。,、,,,,。[5-8],,,,。1 1.1 ,4 :2007-03-20;:2007-06-27 :(2005012) :(1983-),,,。。,Ⅰ:CK,0,;Ⅱ:0.5,;Ⅲ:1,;Ⅳ:2,,。4。20064。。,pH7.28,0.71mg/kg,0.89mg/kg,98.10mg/kg,221.66mg/kg。。1.2 ,6kg,,1h,。5cm、20cm,,3,,,,。,。2006430,626。1.3 :、、、;28GrasslandandTurf (Bimonthly) 2008 No.1 (Sum No.126)、、、、;。 :2006430,1;519,11;626、、、。[9];[10]。SPSS。2 2.1 ,,,,,,。,,,23d(52),。1 Fig.1 Survivalratesofwateredvetiverswithdifferentconcentrationsseawater :(0.05,0.01), 2006626(1),,,,0,100%,2。,[1-3,11-12]。2.2 、 2,,,3,。2 Fig.2 Tillerdynamicsofwateredvetiverwithdifferentconcentrationsseawater3 Fig.3 Greenleavesdynamicsofwateredvetiverwithdifferentconcentrationsseawater 611,2,10.5,。626,0,。,29 2008 1 126(3)。2.3 4,。0,(0.51),,,(2),519-526,63。626,0.512,012,。、。4 Fig.4 Heightdynamicsofwateredvetiverwithdifferentconcentrationsseawater2.4 、 ,,,。(5),。1,,。,、,、。,,,,,,[7,8,11-13]。5 Fig.5 Correlationofdryrootbiomassandstemofwateredvetiverwithdifferentconcentrationsseawater ,02,0.5129.00、10.75cm,。0.52,;,03,;,01、2,0.5,;,02,;,012,0.5,。2.5 2,,,。,,。2,,2,。,,,0,3,[14,15],。30GrasslandandTurf (Bimonthly) 2008 No.1 (Sum No.126)1 Table1 Drybiomassandparttraitsofrootofwateredvetiverwithdifferentconcentrationsseawater /cm//cm3/g/g 210.75cB3.0bB3.8bB0.38bB3.20bA0.12bB 117.38bcAB9.3bB5.6bB0.55bB5.35abA0.11bB 0.520.00bAB21.3bB11.2bAB1.13bAB6.00abA0.16bAB 029.00aA53.5aA27.0aA2.45aA11.00aA0.24aA :(P0.05),(P0.01)2 Table2 Parttraitschangesofgrowingenvironmentbeforeandafterplantingvetivermg/kg pH/mg·kg-1/mg·kg-1/mg·kg-1/mg·kg-1 7.2898.100.710.89221.6627.7692.100.860.56252.5616.9380.100.910.58190.760.57.1481.100.860.53181.490()7.7081.500.910.18184.583 ,,、、,、、。:,,,2,。,2,。,22,。,,,,。,,。,,(),,。 ,,,,,[13-17]。,,。:[1] .[M].:,1998.[2] ,,,.[M].,2003.[3] ,,.[J].,2000,6(1):7-17.[4] ,,.312[J].,2006,29(4):79-81.[5] ,,,.[J].,2001,32(10):143-146.[6] .[J].,2001,15(5):50-52.[7] ,,.[J].,2005,37(2):163-168.[8] .[J].,2006,29(1):9-13.[9] ,,,.31 2008 1 126[J].,2006,23(4):36-39.[10] .[M].,1988.[11] ,,,.[J].,2006,19(3):27-32.[12] ,,,.Na2CO3[J].,2005,22(6):46-48.[13] ,,,.[J].,2003(3):61-63.[14] ,,,.[J].,2006,29(1):138-141.[15] ,,,.[J].,2004,24(1):8-10.[16] .[J].,2002,16(5):56-59.[17] ,.[J].,2002,33(6):449-455.EffectsofwateringplantedVetiveriazizanioideswithseawaterofdifferentconcentrationsonitssurvivalandgrowthGAOWen-ling1,WANGBo2,CHENWei-ping2,LIUJin-gen2,BIANXin-min2(1.CollegeofResourcesandEnvironmentSciences,NanjingAgriculturalUniversity,Nanjing210095,China;2.CollegeofAgriculture,NanjingAgriculturalUniversity,Nanjing210095,China) Abstract:Inordertosimulatethecoastalenvironmentwherevetiver(Vetiveriazizanioides)grow,seawaterof4differentconcentrations(freshwater,half-,normal-anddouble-seawater)wereusedtowatertransplantedvet-iver.Theresultsshowthatthesurvivalrates,growthanddevelopmentinaboveandundergroundpartsofvetiverwereaffectedsignificantlybywateringwithseawateratdifferentconcentrationsafterbeingtransplanted.Wate-ringwithfreshwater,thesurvivalrateofvetiverreached100%,butallthevetiverplantsdiedwhenwateredwithseawateratadoubleconcentration.Andtheeffectsofdepressingongrowthanddevelopmentofvetiverbecamestrongerwiththerisingofseawaterconcentrationamongthefourtreatments.Wateringvetiverswithfreshwaterhadnodepressingonitsgrowth;wateringwithseawaterinhalfornormalconcentrationshadslightrestraineffectsonvetiver,andtherewasnosignificantdifferencebetweenthem.However,wateringvetiverswithseawa-terofdoubleconcentrationhassignificanteffectsonsuchtraitsofvetiversasthetillernumber,thenumberofgreenleaves,height,drystembiomass,thenumberofthefirstlevelroots,thelengthofthelongestroot,thevol-umeofroots,dryrootbiomassandtheroot-stemratio. Keywords:Vetiveriazizanioides;seawaterconcentration;growth32GrasslandandTurf (Bimonthly) 2008 No.1 (Sum No.126)