植物激素处理下向日葵和红苋菜富集^(133)Cs、^(88)Sr的比较

Comparation of ^(133)Cs and ^(88)Sr-Tolerant Capacity of Amaranth and Sunflower Under Hormone Treatments

为提高植物激素对污染土壤的植物修复效率,在植物激素处理下对比红苋菜与向日葵对^(133)Cs、^(88)Sr的富集状况。结果表明:3种激素处理对向日葵、红苋菜的生物量和^(133)Cs和^(88)Sr总含量作用一致表现为GA>SA>IAA,对向日葵、红苋菜^(133)Cs和^(88)Sr转运、富集系数影响一致表现为SA>GA>IAA。红苋菜对^(133)Cs和^(88)Sr的转运系数高于向日葵,而向日葵单株对^(133)Cs和^(88)Sr的积累量、富集系数显著高于红苋菜。

In order to improve the phytoremediation efficiency of plant hormones to pollution soil,the effect of exogenous phytohormones treatments on the 133Cs and 88Srtolerant capacity of amaranth and sunflower were compared.The results showed that the accumulation ability of phytohormones,133Cs and 88Sr contents were GA〉SA〉IAA,while the transfer factor,bioconcentration factor of 133Cs and 88Sr were SA〉GA〉IAA.The transfer factor of 133Cs and 88Sr in amaranth were obviously higher than sunflower.However,because of larger biomass of sunflower plant ,the absorption dose and bioconcentration factor of 133Cs and 88Sr in seedlings of sunflower was larger.