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| 杉木57个优树自由授粉子代测定结果初报 | |
| 引用本文： | 赵航文,范林元,曾德贤,杨华斌,杨曾顺.杉木57个优树自由授粉子代测定结果初报[J].林业调查规划,2010,35(4):136-138. |
| 作者姓名： | 赵航文 范林元 曾德贤 杨华斌 杨曾顺 |
| 作者单位： | 1. 云南省林木种苗工作总站,云南昆明,650215 2. 文山州林木种苗站,云南文山,678000 3. 马关县林业局,云南马关,678000 |
| 摘 要： | 通过对杉木57个自由授粉家系进行子代测定,结果表明,8 a生杉木种子园树高、胸径和材积分别超过对照5.82%、11.67%和31.08%,变异系数分别为20%、22.16%和58.44%.方差分析结果表明,树高、胸径和材积家系间差异显著.树高、胸径和材积的单株遗传力分别为0.26、0.35和0.36,家系遗传力分别为0.56、0.69和0.68.以材积超过家系平均值15%为入选标准,选择出优良家系13个,平均遗传增益为22.9%. |
| 关 键 词： | 杉木 自由授粉 子代测定 遗传增益 |
Preliminary Report on the Test of 57 Open-pollinated Generation of Cunninghamia lanceolata |
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| ZHAO Han-wen,FAN Lin-yuan,ZEN De-xian,YANG Hua-bin,YANG Zeng-shun.Preliminary Report on the Test of 57 Open-pollinated Generation of Cunninghamia lanceolata[J].Forest Inventory and Planning,2010,35(4):136-138. | |
| Authors: | ZHAO Han-wen FAN Lin-yuan ZEN De-xian YANG Hua-bin YANG Zeng-shun |
| Institution: | 1.Yunnan Forestry Seed and Seedling General Workstation Kunming 650215 Yunnan,China;2.Wenshan Forestry Seed and Seedling Station,Wenshan 678000 Yunnan,China;3.Maguan County Forestry Bureau,Maguan 678000 Yunnan,China) |
| Abstract: | The result of progeny test of 57 open-pollinated families of Cunninghamia lanceolata showed that height、DBH、volume of 8-years seedlings in seed orchard exceeded 5.85%、11.67% and 31.08% of those contrasts,and the CV was 20%、22.16% and 58.44% respectively.The variance analysis showed there were significant difference among timber families in height、DBH and volume,and individual heritability was 0.26、0.35 and 0.36,and family heritability was 0.56、0.69 and 0.68 in order.Those 15% volume exceeding family averages as a criterion,13 super families were selected,which average genetic gain was 22.9%. |
| Keywords: | Cunninghamia lanceolata open-pollinated progeny test genetic gain |
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