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| 杉木不同遗传改良途径良种生产力分析 | |
| 引用本文： | 刘日林,李兴发,洪昌端,邵顺流,江波,潘智慧.杉木不同遗传改良途径良种生产力分析[J].浙江林业科技,2008,28(5). |
| 作者姓名： | 刘日林 李兴发 洪昌端 邵顺流 江波 潘智慧 |
| 作者单位： | 1. 浙江省景宁县营林公司,浙江,景宁,323500 2. 浙江省林业科学研究院,浙江,杭州,310023 3. 浙江省景宁县林业总场,浙江,景宁,323500 |
| 摘 要： | 以杉木不同类型种子园、优良家系等良种为材料,进行不同途径良种的造林对比试验.从4年生和18年生试验林的2次生长量调查情况反映出不同途径良种的生产力水平是不同的.4年生时生长较快的前10位良种到18年生时的中选率只有60%;18年生时开化种源种子园的那坡小区混系种子、长乐1.5代混系种子、龙泉双系种子园混系种子及湘零陵9、龙泉15、龙泉5优良家系种子造林的林分平均单株材积遗传增益分别为80.9%、54.5%、49.1%、42.0%、38.9%、33.5%;按种源类别统计,龙泉双系种子园材积生长量最大,遗传增益达到49.1%,长乐1.5代种子园、种源种子园和本省(浙江)选优良家系的遗传增益也在30%以上,而从外省未经子代测定而收集到的15个优树无性系的遗传增益仅为0.8%.为获得高增长的遗传改良效益,用真正优良的优树无性系2个或多个配置,是营建杉木高级种子园较理想的模式. |
| 关 键 词： | 杉木 种子园 良种 生产力 遗传增益 |
Analysis on Productivity of Cunninghamia lanceolata Forest with Different Improved Varieties |
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| LIU Ri-lin,LI Xing-fa,HONG Chang-duan,SHAO Shun-liu,JIANG Bo,PAN Zhi-hui.Analysis on Productivity of Cunninghamia lanceolata Forest with Different Improved Varieties[J].Journal of Zhejiang Forestry Science and Technology,2008,28(5). | |
| Authors: | LIU Ri-lin LI Xing-fa HONG Chang-duan SHAO Shun-liu JIANG Bo PAN Zhi-hui |
| Institution: | 1.Jingning Forest Management Company of Zhejiang;Jingning 323500;China;2.Zhejiang Forestry Academy;Hangzhou 310023;3.Jingning Forest Center of Zhejiang;China |
| Abstract: | Comparison test was implemented on afforestation with different improved Cunninghamia lanceolata seeds.Investigations on increment of 4-year and 18-year trees demonstrated different productivity.The top ten improved seeds with fast increment in the first 4 years remained only 60% in the 18th year.At 18-year-old,compared with the control,the seeds from mixed clonal seed orchards of Kaihua,one and half generation orchards of Changle,bi-clonal seed orchards of Longquan,Xianglinglin No 9,Longquan No 15 and Long... |
| Keywords: | Cunninghamia lanceolata orchard improved variety productivity genetic gain |
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