白桦杂交良种的早期测定

Protection Forest Science and Technology(2009)

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Abstract
通过对大兴安岭林业集团公司森林经营部技术推广站白桦强化种子园中的3年生杂交的白桦幼树高生长及径生长资料进行方差分析,结果表明:白桦不同杂交品系间存在显著差异,初步筛选出XBH23×J欧2和XBH23×J欧3两个优良家系,2个试验组树高、地径的遗传增益分别为47.2~49.5和26.2~33.0。
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Key words
cross breeding,early determination,Betula platyphylla Suk.
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