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引进种源印度黄檀优株选择及优良无性系选择与评价
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引进种源印度黄檀优株选择及优良无性系选择与评价
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Journal Article
引进种源印度黄檀优株选择及优良无性系选择与评价
2017
Overview
[目的]印度黄檀Dalbergia sissoo（Roxb.）是一种经济价值比较高的用材树种，对印度黄檀优株选择及优良无性系筛选，可以为印度黄檀优良品种选育提供理论指导和支持。[方法]本研究测定4种国外引进种源（N0、N2、I4和H6）印度黄檀母株株高和胸径，选择出20棵优株；并通过嫁接进行无性系苗木繁殖，测定2年生无性系苗木胸径和株高，比较分析了20个无性系株高和胸径，筛选出优良无性系用于印度黄檀优良品种选育。[结果]4个种源的印度黄檀母株株高和胸径变异系数较大，选择的20棵优株株高和胸径约等于或大于母株平均株高和胸径的130%；9和10号无性系株高和胸径均明显大于其它无性系，且变异系数远远小于母株；其次为12、18、19和20号无性系；9和10号优株，树干较直，胸径较大，超过母株平均值的170%；9和10号无性系株高和胸径均超过对照的130%，可作为优良无性系。[结论]本研究选择了20棵印度黄檀优株，并繁殖出20个无性系，筛选出9和10号作为优良无性系，用于之后的印度黄檀优良品种的选育。
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