摘要
AnexperimentwasconductedtostudytheeffectsofdifferentPbconcentrationsonriceseedgerminationandseedlinggrowthinthreecultivars(Jiayu293,Jiayu948andXieyou963).ThemethodofqualitativetraitscombiningwithquantitativetraitsbyorthogonalpolynomialswasappliedtoanalyzericeseedvigorbyregressionmodelTheseedsfromdifferentricecultivarshaddifferentsensitivitytoPbpoison.InthePbconcentrationof100-700mg/L,Pbsignificantlydecreasedrootlengthandshootheight,andthedegreeoftherestraintwouldaggravatewiththeincreasingofPbconcentration.However,Pbdidnotreducerootdryweightandshootdryweight,whichindicatedthatdifferentphysiologicalcharacteristicshaddifferentsensitivereactionstoPb.Thepredictingequationsofregressionweredeveloped,whichcouldbeusedtopredicttheeffectsofdifferentPbconcentrationsonriceseedvigor.
出版日期
2005年03月13日（中国期刊网平台首次上网日期，不代表论文的发表时间）
