Growth performance of Toona ciliata var. pubescens family progeny by open pollination
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摘要: 对来自3个省的52个毛红椿Toona ciliata var. pubescens家系在浙江开化进行了造林试验。3年生幼林的生长结果表明,毛红椿的树高、胸径、分枝数和分枝高度等4个性状在家系间均存在极显著差异;树高、胸径、分枝数和分枝高度等4个生长性状在不同重复间表现出极显著差异;毛红椿幼林期树高和胸径2个性状具有中等以上的遗传力,而分枝数和分枝高度等2个生长性状遗传力相对较低。以树高和胸径为选择性状,选择出65号、31号、10号、9号、80号、27号、18号和19号等8个在幼林期表现较为优异的家系。表3参16Abstract: An afforestation trial for a 3-year-old young forest of Toona ciliata var. pubescens containing 52 families was conducted in Kaihua,Zhejiang Province. Four growing traits:tree height,diameter at breast height(DBH),number of branches,and branch height were studied. Results showed significant differences(P<0.01) in the four traits with different repeats. Broad heritability for tree height and DBH was above mid-level,whereas broad heritability of branch number and branch height were very low. Fast-growing families selected according to the growing traits of this young forests were No.65,No.31,No.10,No.9,No. 80,No.27,No.18 and No.19.[Ch,3 tab. 16 ref.]
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Key words:
- forest free breeding /
- Toona ciliata var. pubescens /
- family /
- young forest /
- variation /
- family selection
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链接本文:
https://zlxb.zafu.edu.cn/article/doi/10.11833/j.issn.2095-0756.2010.06.026

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