| 柏木优树子代苗期测定 |
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| 引用本文： | 谭小梅,;周益权,;周小舟. 柏木优树子代苗期测定[J]. 农业科学与技术, 2014, 0(9): 1562-1566 |
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| 作者姓名： | 谭小梅, 周益权, 周小舟 |
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| 作者单位： | [1]重庆市林业科学研究院,重庆400036; [2]重庆市中药研究院,重庆400065 |
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| 基金项目： | 重庆市科技攻关计划项目“珍贵用材柏木种质资源收集、保护与繁育技术研究”：重庆市财政林木良种繁育体系建设专项“木本油料种质资源库建设”：重庆市财政野生动植物保护及自然保护区建设项目“南川木波罗繁育关键技术研究”. |
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| 摘 要： | [目的]充分利用柏木种源、家系问广泛的遗传变异进行良种选育和遗传改良。[方法]以来自重庆市和浙江省千岛湖的4个种源34个柏木优树家系2年生苗为材料，研究家系和种源间苗期生长性状的差异性。[结果]苗高与地径在家系和种源间均存在极显著差异，家系问变异系数分别为11．37％和18．89％．种源间变异系数分别为7．25％和12．58％。[结论]柏木的苗高与地径在家系和种源间存在较为丰富的变异，具有选育潜力。
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| 关 键 词： | 柏木 优树 苗期性状 家系 早期选择 |
Nursery Testing of Superior Tree Progeny ol Cupressus funebris |
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| Affiliation: | Xiaomei TAN, Yiquan ZHOU, Xiaozhou ZHOU( 1. Chongqing Academy of Forestry Sciences, Chongqing 400036, China; 2. Chongqing Institute of Traditional Chinese Medicine, Chongqing 400065, China) |
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| Abstract: | [Objective] Breeding and genetic improvement for Cupressus funebris was performed based on the extensive genetic variation among provenances and fami- lies. [Method] The two-year-old Cupressus funebris, from 4 provenances and 34 superior Cupressus funebris families introduced from Chongqing and Qiandao Lake of Zhejiang Province, was used as test material, and the differences in growth traits among provenances and families at the seedling stage of Cupressus funebris were investigated. [Result] The height and ground diameter of seedlings differed signifi- cantly among provenances and families. Their variation coefficients among families were 11.37% and 18.89%, and among provenances were 7.25% and 12.58% re- spectively. [Conclusion] There was relatively rich genetic variation in height and ground diameter among provenances and families of Cupressus funebris. It has a certain breeding potential. |
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| Keywords: | Cupressus funebris Superior tree Seedlinq trait Family Early selection |
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