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OALib Journal期刊
ISSN: 2333-9721
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磷、砷双重胁迫对不同耐低磷水稻苗期生长及磷、砷吸收的影响
DOI: 10.3724/SP.J.1145.2009.00596, PP. 596-601
Keywords: 磷,砷,水稻,生物学性状
Abstract:
以1个耐低磷和1个低磷敏感水稻为材料，通过土培试验研究磷、砷双重胁迫对水稻苗期生物学特性及磷、砷吸收的影响，并比较不同品种之间的差异.结果表明，相同磷水平下，外加砷浓度为小于25mg/kg时，水稻的生物量、叶宽、株高、spad值及磷吸收量均随砷浓度的增加而增加，当砷浓度达到50mg/kg时开始下降，两个品种表现相同趋势.说明少量砷可以刺激水稻生长，促进磷的吸收，砷用量过多则抑制水稻的生长及磷的吸收.相同砷水平下，水稻生物学性状及磷、砷吸收量随磷用量的增加而增加，两个品种亦表现相同趋势.说明适当施磷肥可以缓解砷对水稻生长的抑制作用.上述结果表明，低浓度的磷、砷具有协同效应，高浓度的磷、砷表现拮抗作用.此外，相同磷、砷水平下，供试耐低磷水稻的生物学性状及其相对值较低磷敏感水稻大；但相对磷吸收量（除磷处理为150mg/kg外）比低磷敏感水稻小，而砷吸收量及其相对值均比低磷敏感水稻多，这可能与二者的磷营养特性及水稻对磷和砷的竞争吸收有关.图7表1参19
| [1] | 1蔡洪法.我国水稻生产现状与发展展望.中国稻米,2000,6:5~8
|
| [2] | 2acharyyask,chakrabortyp,lahiris,raymahashaybc,guhas,bhowmika.arsenicpoisoninginthegangesdelta.nature,1999,401:545~547
|
| [3] | 3duangl(段桂兰),wanglh(王利红),cheny(陈玉),xuyx(徐玉新),mengxy(孟祥燕),zhuyg(朱永官).healthriskfromconsumptionofricewithelevatedarsenicandstudiesofarsenicmetabolisminriceplants.jagro-environsci(农业环境科学学报),2007,26(2):430~435
|
| [4] | 4liaoxy,chentb,xieh.soilascontaminationanditsriskassessmentinindustrialdistrictsofchenzhou,southernchina.environintern,2005,31(6):791~798
|
| [5] | 5mehargaa,rahmanm.arseniccontaminationofbangladeshpaddysoil:implicationforricecontributiontoarsenicconsumption.envrionsci&technol,2003,37:229~234
|
| [6] | 6chentb,fanzl,leim.effectofphosphorusonarsenicaccumulationinas-hyperaccumulatorpterisvittatal.anditsimplication.chinscibull,2002,47(22):1876~1879
|
| [7] | 7stoevan,berovemandzlatvez.effectofarseniconsomephysiologicalparametersinbeanplants.biolplantarum,2005,49(2):293~296
|
| [8] | 8tus,mal.interactiveeffectsofph,arsenicandphosphorusonuptakeofasandpandgrowthofthearsenichyperaccumulatorpterisvittatal.underhydroponicconditions.environexpbot,2003,50(3):243~251
|
| [9] | 9zhanggl(张广莉),songgy(宋光煜),zhaohx(赵红霞).effectofphosphorusondistributionofinorganicarsenicfractionsinrhizosphereandgrowthofrice.actapedolsin(土壤学报),2002,39(1):23~28
|
| [10] | 10guow,houyl,wangsg,zhuyg.effectofsilicateonthegrowthandarsenateuptakebyrice(oryzasatival.)seedlingsinsolutionculture.plant&soil,2005,272:173~181
|
| [11] | 14peryeafj.phosphate-inducedreleaseofarsenicfromsoilscontaminatedwithleadarsenate.soilscisocamj,1991,55:1301~1306
|
| [12] | 15peryeafj.phosphatestarterfertilizertemporarilyenhancessoilarsenicuptakebyappletreesgrownunderfieldconditions.hortscience,1998,33:826~829
|
| [13] | 16gengcn,zhuyg,liuwj,smithse.arsenateuptakeandtranslocationinseedlingsoftwogenotypesofriceisaffectedbyexternalphosphateconcentrations.aquaticbot,2005,83:321~331
|
| [14] | 17guozh(郭再华),hely(贺立源),xucg(徐才国).ricepropertiesoftolerancetolowphosphorus.chinjapplenvironbiol(应用与环境生物学报),2004,10(6):681~685
|
| [15] | 18mehargaa,macnairmr.analteredphosphateuptakesysteminarsenate-tolerantholcuslanatusl.newphytologist,1990,116:2
|
| [16] | 19chentb,liaoxy,huangzc.phytoremediationofascontaminatedsoilinchina.in:phytoremediationmethodsandreviews.nj,usa:humanapress,2006.393~400
|
| [17] | 11guozh(郭再华),hely(贺立源),zhangqf(张启发),xucg(徐才国).indexesforscreeningandidentifyofricetolerancetolow-pstress.actaagronsin(作物学报),2005,31(1):65~69
|
| [18] | 12oremlandrs,stolzjf.theecologyofarsenic.science,2003,300:939~944
|
| [19] | 13chentb(陈同斌).arsenicinsoilsolutionanditseffectonthegrowthofrice.actaecolsin(生态学报),1996,16(2):147~153
|
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