【摘要】 通过盆栽实验,分析了铜陵铜尾矿对小麦生长发育和农艺性状的影响.结果表明:尾矿能明显抑制小麦的分蘖数和推迟小麦的发育,低比例尾矿促进高比例尾矿抑制旗叶的叶面积和小麦的株高、茎、叶生物量.随着小麦的生长发育,尾矿的毒害作用更加明显,尾矿对小麦的影响最终反映在小麦的农艺性状上.铜元素的毒害和尾矿的极端贫瘠是影响小麦生长的两个因素.成熟期小麦各器官铜含量大小依次为根>茎叶>籽粒,籽粒中铜的含量与尾矿中有效铜的含量呈明显的相关性.更多还原

【Abstract】 The effects of Tongling copper mine tailings on growth,developm en t and agronomic trait of wheat were investigated by pot experiments. The results showed tailings decreased tiller numbers and delayed development stage. Low rat io tailings increased and high ratio tailings decreased leave area on flag leave s, seedling height and stem, leaves biomass. The toxicity of tailings increased remarkaly as wheat grew and developed. The ultimate effects was agronomic trait of wheat.The toxicity of copper and the extreme infertility of tailings were two main factors stressing wheat growth. The distribution of copper in wheat in mat ure stage was root>stem and leave>seed.There were significant positive correlati on between copper in seed and available copper in tailings.更多还原