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社评“男生的坤坤放歌女生坤坤”-知识课堂

中国橡胶树“北男生的坤坤放歌女生坤坤上”新突破:种植区域拓展至北纬25度

来源: 北京青年报
2024-11-25 20:39:51

最佳回答

“男生的坤坤放歌女生坤坤”中国橡胶树“北男生的坤坤放歌女生坤坤上”新突破:种植区域拓展至北纬25度

  中新男生的坤坤放歌女生坤坤社海南儋州11月25日电男生的坤坤放歌女生坤坤 (记者 王晓斌)中国科研人员已成功将橡胶树种植区域向北推进至北纬25.12度,使橡胶种植范围再次向北拓展。这是记者近日探访中国热带农业科学院(简称“中国热科院”)国家橡胶树育种中心了解到的。

  国家橡胶树育种中心位于海南儋州,中心构建了全国品种选育示范协作网,在海南、广东和云南建有橡胶树新品种试验示范区5000余亩。

11月9日,中国热带农业科学院国家橡胶树育种中心,试验示范基地的橡胶树苗郁郁葱葱。 中新社记者 王晓斌 摄

  “国际上公认的橡胶树适宜种植区域是在南纬10度到北纬15度之间。”中国热科院橡胶研究所副研究员张源源介绍,1982年,《橡胶树在北纬18-24度大面积种植技术》荣获中国国家技术发明奖一等奖。在此基础上,经过持续攻关,如今已将种植北界推进到北纬25.12度。

  由中国热科院橡胶研究所牵头的“耐寒抗风高产橡胶树品种培育及其应用”项目,成功培育了8个耐寒抗风高产品种。其中包括3个抗风高产品种;世界单产最高的“热研879”;以及4个耐寒高产品种“云研77-4”等,使橡胶种植区北缘扩展至北纬25.12度,相关成果荣获了2023年度中国国家科学技术进步奖二等奖。

  在中国橡胶树育种领域,“抗逆”是核心关键词之一。张源源解释说,因为地理环境的现实,培育抗寒、抗风品种是保证中国橡胶产业稳定发展的关键。

  如何让源自南美洲热带雨林的橡胶树抗寒?张源源告诉记者,当前的橡胶抗寒育种是“在千千万万份材料中,筛选出既能保障产量又具备抗寒特性的优良品种”。

  “从24度到25度,看似只有一度的进步,但这个过程中付出的人力物力是难以计数的。”张源源说,橡胶育种周期通常长达41年,目前经过对育种程序的优化,最短已缩至27年。

  张源源说,中国培育的抗寒品种已成为印度等国家进行抗寒育种研究的对照品种。同时,一些高产品种已经随着中国企业走入东南亚,并通过国际间的品种交换推广到其他地区。(完)

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