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中天杨是由中国林科院与山东农业大学历时8年研制成功的世界上*抗盐碱、抗干旱的转基因优良杨树(青杨派)新品种。专家组认为,中天杨不仅抗盐碱,而且速生,同时皮色青绿细腻,树型美观,在盐碱地区既是良好的民用材,又是优良的工业用材和园林绿化树种。试验表明,中天杨在土壤含盐量0.4%以内生长旺盛,在0.4-0.6%可正常生长,年胸径生长量2.6-2.8厘米,年材积生长量达1.6-1.9立方米/亩。

课题组不仅培育出转基因抗盐中天杨新品种,而且研究了转基因阳性植株的配套组繁殖技术,筛选出了*佳的分化、伸长、生根培养基以及配套的滤纸桥瓶外生根技术,简化了组培程序,为转基因杨树的产业化开发提供了快繁技术基础。

专家们认为,中天杨的培育成功有利于改良土壤,改善生态、增加绿色植被,提高森林覆盖率,同时对国内加快纸浆用材林建设和工业商品林建设提供了广阔的空间,具有重要的战略意义。

据悉,中天杨目前已获得国家专利植物新品种保护权,国家林业局也将其列为盐碱干旱地区造林的优良品种和重点推广新品种。

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