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1、安徽農(nóng)業(yè)科學(xué)，JournalofAnhuiAsri．Sci．2015，43(10)：96—100責(zé)任編輯黃小燕責(zé)任校對況玲玲少花龍葵與蘆薈間種對鎘脅迫的效應(yīng)何彩甄，王建煌，裴婕，陳穎芝，李文浩，付善明(廣州大學(xué)環(huán)境科學(xué)與工程學(xué)院，r~f-'N510006)摘要[目的]研究少花龍葵與蘆薈間種對鎘脅迫的效應(yīng)。[方法]通過不同程度鎘脅迫的種植培育，研究少花龍葵與蘆薈間種模式下鎘的分布，考察間種模式下對少花龍葵鎘的積累影響，并對其風(fēng)險(xiǎn)評價(jià)。[結(jié)果]少花龍葵在生長期對鎘脅迫有明顯的敏感反應(yīng)，對其株高、葉綠素含量影響不大，略微影響鮮重。土壤鎘處理濃度為0．6
2、0ms／kg時(shí)，少花龍葵葉子鎘濃度明顯比單種低，雖間種的蘆薈比單種高，但兩者葉子符合綠色行標(biāo)；土壤鎘濃度>0．印ms／kg時(shí)，少花龍葵趨向富集鎘，吸收系數(shù)間種大于單種，風(fēng)險(xiǎn)相對于蘆薈更高，蘆薈處于更有利和安全的位置。[結(jié)論]選取合適的植物間種不失為經(jīng)濟(jì)合理的處理低濃度鎘土壤的方法，高pH和高有機(jī)質(zhì)含量使cd2不容易轉(zhuǎn)移至植物。關(guān)鍵詞少花龍葵；蘆薈；鎘脅迫：間種中圖分類號S181．3文獻(xiàn)標(biāo)識碼A文章編號0517—6611(2015)1O一096—05CadmiumStressEfectsonS．photeinocarpumNakamuraInter
3、croppingwitllAloeveraHECai-zhen，WANGJian-huang，PEIJieetal(SchoolofEnvironmentalScience&Engineering，GuangzhouUniversity，Guangzhou，Guangdong510oO6、Abstract[Objective]TheresearchaimedtostudytheCadmiumstressefectsonS．photeinocarpumNakamuraintereroppingwithAloevera．[Method]Thecadm
4、iumdistributionofS．photeinocarpumNakamuraintercroppingwithAloeverawasstudiedbydifferentlevelsofcadmiumstressplantingcuhivation，theaccumulationofcadmiuminfluenceofS．photeinocarpumNakamuraandtheevaluationofitsriskwereanalyzedunderinterplantingmode．[Resuh]S．photeinocarpumNakamur
5、ainthegrowthtimeobviousallergicreactionstocadmiumstressandhadlittleeffectonitsheightandchlorophyllcontent，butslighflyaffectedonfreshweight．WhenSoilCdconcentrationwas0．60mg／kg，thecadmiumconcentrationsofS．photeinocarpumNakamuraleavesweresignificantlylowerthansinglespecies，butbo
6、thsingleandinterplantingmodeofA1一oeverawereinkeepingwithGreenindustrystandards．WhenSoilCdconcentrationsgreaterthan0．60ms／kg，S．photeinocarpumNakamuratendstoenrichcadmium，atthesametimeitsabsorptioncoefficientgreaterthansinglemode．DuetothehigherriskofS．photeinocarpumNa—kamura，Al
7、oeverawasprotectedtoabetterandsaferplace．[Conclusion]SelectingsuitableplantspeciesCallyetberegardedaseconomicallyreasonablemethodstoresolvethelowconcentrationofcadmiuminsoil．SoilwithhighpHandhighorganicmattercontentmakesCdnoteas—ilytotransferredtotheplant．KeywordsS．photeinoca
8、rpumNakamura；Aloevera；Cadmiums~esses；lnterplanting植物間種對自然資源如光能、熱量、水分
