湘潭市镉低积累水稻品种筛选试验

水稻对镉的积累存在品种间差异,筛选稻米镉含量低、稳定性好、适应当地环境的水稻品种,能有效解决镉污染稻田水稻安全生产问题。研究将湘潭地区种植广泛的82个早、晚稻品种进行盆栽试验。结果表明:早稻品种株两优729和两优早17,晚稻品种丰源优272和C两优7号,在一般污染区能够达到国家标准,在重度污染区域种植未达到FAO/WHO标准的上限,可在湘潭地区作为应急性低镉品种推广使用。

Screening Experiment of Low Cadmium Accumulation Rice Variety in Xiangtan

The accumulation of cadmium in rice is different among varieties. Screening rice with low cadmium content, good stability and adapting to local environment can effectively solve the problem of rice production safety. The research used 82 early and late wildly plantedrice varietiesin Xiangtan area for pot experiment. The results showed that early rice V24 (Zhuliangyou 729), V32 Liangyouzao 17) and late rice v12 (Fengyuanyou 272), V46(C Liangyou No.7)in general pollution areas can meet national standards, reached upper limit of FAO/WHO standard for planting in heavily polluted areas, the result proved that they can be used as emergency low Cd accumulation varieties in Xiangtan area.