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袁隆平技术团队再出手 我国高产“海水稻”试种成功

2017-09-29 04:32:51   

9月28日,在青岛海水稻研发中心,测产专家组专家在对取样海水稻进行面积测量。金秋九月,黄海之滨,一片生长在咸水中的特殊水稻已稻穗累累、压弯枝头。这是中国工程院院士、“杂交水稻之父”袁隆平领衔的技术团队培育出的最新一批“海水稻”。新华社记者 郭绪雷 摄

新华社青岛9月28日电 题:我国高产“海水稻”试种成功 数亿亩盐碱地有望成米粮仓

新华社记者

金秋九月,黄海之滨,一片生长在咸水中的特殊水稻已稻穗累累、压弯枝头。这是中国工程院院士、“杂交水稻之父”袁隆平领衔的技术团队培育出的最新一批“海水稻”。

“最高亩产为620.95公斤,大大超出了我们的预期!”28日,在青岛海水稻研发中心举行的“耐盐碱水稻材料评测会”上,“海水稻”实地测产结果一经宣布,现场人群沸腾了——这个亩产意味着我国在“海水稻”研发领域取得了重大突破。

据测算,我国盐碱地总数约15亿亩,其中有约3亿亩具有改造潜力。如果在1亿亩盐碱地推广“海水稻”,按亩产300公斤保守计算,年产量也将达到300亿公斤,能养活8000万人口。

“海水稻”不一般,稀释海水来浇灌

走进青岛海水稻研发中心实验基地大门,首先映入眼帘的是道路南侧10余亩试验田,被整齐分成了12块,总共种植了1000多份不同的水稻材料——技术人员解释说,通过品种审定前,这些不同的水稻不能称之为品种,只能称之为材料。

其中,7号和8号试验田中种植了312份具有较强耐盐碱性的“海水稻”材料,平时用3‰至6‰不同盐度的咸水浇灌。青岛海水稻研发中心最西侧是一个海水调节池,周边海水被引入调节池中,再加入一定比例淡水,配制出不同浓度的咸水,专门用于灌溉7号和8号试验田,从而模拟自然界中不同的盐碱地情况,测试不同材料的耐盐碱性,选育优秀品种。

青岛海水稻研发中心育种工程师邹丹丹说,“海水稻”是耐盐碱水稻的俗称,传统水稻在较高盐碱浓度的水田里无法正常生长结实。目前,这里的“海水稻”已能在6‰盐度的咸水灌溉条件下正常生长结实,未来随着相关研究进一步推进,期待新的海水稻材料能用更咸更碱的水进行灌溉。

青岛海水稻研发中心由袁隆平担任主任和首席科学家。眼下,这些“海水稻”进入成熟期,稻穗已经金黄。随手捏开一粒稻谷,籽粒十分饱满。

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