摘要
对营养液栽培1个月后的10种植物用88Sr和133Cs进行处理,1周后收获并分析其对88Sr和133Cs的富集能力。结果表明:88Sr在10种植物的地上部含量顺序为苕子>孔雀草>蚕豆>豌豆>金盏菊>瓜叶菊>油菜>地被菊>大豆>石竹,孔雀草和蚕豆的地上部88Sr含量大于根系,其余植物富集的核素88Sr大部分都积累在根部。133Cs在10种植物的地上部含量顺序为孔雀草>金盏菊>瓜叶菊>地被菊>石竹>油菜>豌豆>苕子>蚕豆>大豆,石竹和地被菊地上部133Cs的富集系数大于1。说明它们能把吸收的88Sr或133Cs较多地运输到地上部,其体内可能存在良好的运输机制,有待进一步研究。
To delect the plants which can accumulate ^88Sr and ^133Cs,the uptake and accumulation of 5 green manures and 5 flowers were investigated under hydroponic conditions. The results were as follows： the concentrations of the leaf and stem of ^88 Sr in ten plants ： Vicia das ycar pa Tenore 〉 Ta getes patula 〉 Vicia J aba Linn〉 P isum sativum Linn〉Calendula of ficinalis 〉Cineraria cruenta 〉 Brassica campestris L〉 Tagetes patula 〉Glycine max （L. ） Merr〉 Dianthus chinensis L the concentrations of abovegroud parts of Maidenhair and Horsebean were greater than that in the roots, the concentrations of ^88 Sr of other plants were accumulated in the roots. The concentrations of the leaf and stem of ^88Sr in ten plants： Tagetes patula 〉 Calendula o f ficinalis 〉 Cineraria cruenta 〉 Tagetes patula 〉Dianthus chinensis L〉 Brassica campestris L〉 Pisum sativum Linn〉Vicia dasycarpa Tenore 〉Vicia f aba Linn〉Glycine max （L.） Merr. The bioaccumulations coefficients of ^133Cs in abovegroud parts of Pink and Blackeyed Susan were not less than uptake of ^88Sr and ^133 Cs was transported above groud parts, the substancesin of plants maybe exict the good transportiong mechanisms,we need investigate furtherly.
出处
《北方园艺》
CAS
北大核心
2009年第10期65-67,共3页
Northern Horticulture
基金
西南科技大学重点资助项目(07XJGZB05)
西南科技大学青年基金资助项目(08zx315208zx3152)
