Ca2+对酸雨胁迫下茎瘤芥种子萌发和幼苗生长效应的影响.pdf

ofAnhui 安徽农业科学，Journal Ash．Sci．2013，41(1)：139—140 责任编辑乔利利责任校对李岩 Ca2+对酸雨胁迫下茎瘤芥种子萌发和幼苗生长效应的影响 阳凤，薛梅+，王大平 (重庆文理学院林学与生命科学学院，重庆402160) 摘要[目的]探讨Ca2+对酸雨胁迫下茎瘤芥种子萌发和幼苗生长效应的影响。[方法]以茎瘤芥种子为材料，研究了外源Ca2+对酸雨 胁迫(pH2．5、pH3．o)下茎瘤芥种子萌发及幼苗生长效应的影响。[结果]低浓度Ca2+对酸雨胁迫下茎瘤芥种子的萌发有促进作用；向 酸雨胁迫下的幼苗喷洒低浓度的Ca2+，能够使茎瘤芥幼苗叶子中的叶绿素含量增加以及丙二醛含量减少，对植物起到保护作用。[结 论l为提高茎瘤芥的产量和品质提供了理论依据。 关键词Ca“；茎瘤芥；酸雨胁迫 中图分类号$429文献标识码A 文章编号0517—6611(2013)01—00139—02 SeedandGrowthof iHlfkrAcidRainStress Effects试C霜d删咀onG翻阿函m鲥蛔of Seedli雌o￡T咖∞棚舢S蛐Mustard YANGet of andLife ofArtsand 402160) Fengai(InstituteForestry Science，ChongqingUniversity Sciences，Chongqing of an- Abstract aimwastodiscusstheeffectsofcalciumon ofseedand of ttmaomusstemmustard fObjective]The germination growthseedling deracidrain Method ofcalciumon ofseedand of oftumorousstemmustardwerestudiedunder stress．1 1‰effects germination growthseedling ofcalciumhad for ofseedoftumorousstemmustard acidrainstressof 2．5and lowconcentration acceleration pH 3．0．『Result]The germination underacidrainstress．Thetreatmentwith lowconcentrationofcalciumfor oftunlorousstemmustardcouldincrease spraying seedling chlorophyll resea．rch contentin leavesandreducethecontentofMDAunderacidrain itcould Conclusion result seeding stress，SO protectplant．1 I．11le pro— oftumorousstemmustard． ridestheoreticalbasisforthe of andquality improvementyield stem rainslress words mustard：Acid