Cd, Pb及其相互作用对小麦种子生活力的影响

 本文研究了不同培养无数,Cd,Pb,Pb+Cd和Cd+Pb的不同处理浓度对小麦种子生活力的影响。结果表明:不同培养无数,小麦种子发芽百分数、根长、根数均随Cd,Pb,Pb+Cd和Cd+Pb4种处理中Cd,Pb浓度的增加而降低;在4种处理方式的不同处理浓度下,发芽百分数、根长、根数均随培养无数的延长而增加。Cd对种子生活力的影响比Pb大,且在200mg·k^-1时较为明显,对种子生活力影响的大小为Cd>Pb+Cd>Pb。而在低浓度时(100mg·k^-1),Pb+Cd对种子生活力的影响最小。在此基础上,对Cd,Pb以及培养无数影响种子生活力的原因与Cd,Pb相互作用进行了初步的探讨。

Effects of Cadmium,Lead and Their Interaction on the Vitality of Wheat Seeds

This paper provided information about the effects in the vitality of wheat seeds under the treatments of Cd,Pb,Pb+Cd and Cd+Pb in different cultivating days.The results showed that the germination pereentage,root growth and root amount of wheat seeds decreased with the increase of the coneentration of Cd,Pb under4 treatments in diffennent cultivating days.The germination pereentage,root growth,root amount increased with the increase of the cultivating days in different coneentration under 4 treatments.The effect of Cd on the vitality of wheat seeds was obvious than thatof Pb.The effect was evident under 200mg·k^-1 treatment,the effect of Cd was obvious than Pb+Cd,Pb+Cd was obvious than Pb.When the concentration was less than 100mg·k^-1,the effect of Pb+Cd on the vitality of wheet seeds was the smallest.Based on the experiment,the cause of the effects of Cd,Pb and cultivating days on the vitality of wheat seeds and interaction between Cd and Pb was investigated primarily.