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袁隆平宣布重大成果:水稻亲本去镉技术获突破

2017-09-27 09:07:53   

近日,中国工程院院士、“杂交水稻之父”袁隆平宣布一项剔除水稻中重金属镉的新成果。

《湖南日报》9月25日消息,近日,在2017年国家水稻新品种与新技术展示现场观摩会(以下简称“双新会”)上,袁隆平宣布了一项重大成果:“近期我们在水稻育种上有了一个突破性技术,可以把亲本中的含镉或者吸镉的基因‘敲掉’,亲本干净了,种子自然就干净了。”

资料图:袁隆平(央视网图)

近年来,伴随着农业供给侧结构性改革对绿色种业提出的新要求,农作物的纯净度越发受到关注,特别是在许多土壤污染较重的地区,如何避免污染元素在作物中的代际传播,是育种家必须考虑的问题。此项镉元素剔除技术将扭转我国部分农作物重金属含量超标的趋势。

据了解,此次双新会由全国农业技术推广服务中心和湖南省农业委员会共同举办,集中展示了长江中下游地区一大批高产优质、高效安全的优良水稻品种和最新种业科研成果。

新会展示基地位于浏阳市北盛镇环园村,占地面积300亩,整个示范现场共分为6个展示区,展示了来自全国10个省市89家科研单位和种子企业的588个优良水稻品种,集中体现了这些品种的生长情况,重点突出了氮高效栽培技术、印刷播种技术、超级稻“三定”栽培技术和均衡施肥技术4项水稻轻简高效栽培新技术带来的种植效果提升,吸引了各地水稻专家、经销商、种粮大户等500余人到场观摩。

据介绍,此次双新会较去年有所突破。首先是规模上,示范田面积由去年的130多亩增加至今年的300多亩,参展种企和品种数量增加;其次是在参展品种质量安全方面,由过去注重事前许可转变为强化事中事后监管,采用定点调查、走访调查、专家访查等方式全程跟踪评价品种田间表现,对存在严重缺陷、种性严重退化或失去生产利用价值的品种及时反馈给种子企业,对不宜继续推广使用的品种及时发布预警信息,依法依规停止推广,从源头上规避了农业生产风险。

湖南省有关负责人表示,下一步湖南省将根据现代农业发展的总体要求,以推进依法治种、保障用种安全、建设种业强省为目标,进一步完善全省品种安全跟踪评价与新品种展示示范体系,建立健全品种安全预警、示范推广机制,加速新一轮品种更新换代,为推动农业调结构转方式提供更好支撑。

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