[1]吴恒梅,纪艳,姜成,等.重金属镉对丝瓜种子萌发及根系活力的影响[J].北方园艺,2012,36(11):38-40.
　WUHeng-mei,JIYan,JIANGCheng,et al.EffectsofHeavyMetalCadmiumonSeedGerminationand RootActivityofLuffacylindrical[J].Northern Horticulture,2012,36(11):38-40.
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重金属镉对丝瓜种子萌发及根系活力的影响

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 第36卷 期数: 2012年11期 页码: 38-40 栏目: 出版日期: 2012-11-16
Title:
EffectsofHeavyMetalCadmiumonSeedGerminationand RootActivityofLuffacylindrical
文章编号:
1001-0009（2012）11-0038-03
作者:
吴恒梅1; 纪艳1; 姜成1; 杨洪升1; 张卫东1; 王景佳2
1.佳木斯大学生命科学学院，黑龙江佳木斯154007；
2.佳木斯大学第二附属医院，黑龙江佳木斯154007
Author(s):
WUHeng-mei1; JIYan1; JIANGCheng1; YANGHong-sheng1; ZHANGWei-dong1; WANGJing-jia2; LIXiu-xia1
1.CollegeofLifeScience,JiamusiUniversity,Jiamusi,Heilongjiang154007;
2.DepartmentofOrthodonticsSchoolofStomatology，JiamusiUniversity,Jiamusi,Heilongjiang154007
关键词:
镉; 丝瓜种子; 萌发; 根系活力
Keywords:
Cd; Luffachylindrica(L.)Roemseed; germination; rootactivity
分类号:
S642.4
文献标志码:
A
摘要:
采用水培法，研究了不同浓度的Cd2+对丝瓜种子的发芽率、发芽势、发芽指数、活力指数变化及根系活力的影响。结果表明：当Cd2+浓度为10mg/L时，发芽率和活力指数均高于对照；当Cd2+浓度为5mg/L时，根系活力高于对照；之后随着Cd2+溶液浓度的升高，发芽率、发芽势、发芽指数、活力指数、根系活力均显著降低，抑制效应逐渐增强；说明低浓度的Cd2+对丝瓜种子萌发具有促进作用，高浓度的Cd2+则具有抑制作用。
Abstract:
TheeffectsofheavymetalcadmiumonseedgerminationandrootactivityofLuffacylindricalbyhydroponicsolutionsculturewerestudied.Luffacylindricalseedsweretreatedbycadmiumsolutionwithdifferentconcentrationstodeterminetheirgerminationpercentage,germinationindex，variationofvitalityindexandrootactivity.WhenthelowCd2+concentrationwas10mg/L,thegerminationpercentageandgerminationindexhigherthanthecontrolgroup.WhenthelowCd2+concentrationwas5mg/L,therootactivitywashigherthanthecontrolgroup.WithCd2+concentrationincreasing，thegerminationpercentage,vitalityindex,androotactivitywassignificantlylower,andinhibitingwasstrengthen.Thevigourofgerminationandgerminationindexwaslowingwiththeincreasingconcentration,andinhibitingwasstrengthen.TheconclusionwasthatCd2+wascapableofstimulatingbuddingradioatlower,butreducingbuddingradioathigherconcentrations.

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备注/Memo

第一作者简介：吴恒梅（1972-），女，硕士，副教授，现主要从事植物生理与分子生物学研究工作。E-mail：hengmeiwu@163.com。
基金项目：佳木斯大学科研资助项目(S2010-57)；黑龙江省卫生厅资助项目（2011-457）。
收稿日期：2012-03-07

更新日期/Last Update: 2014-09-24