| 白桦全同胞子代测定及优良家系早期选择 |
| |
| 引用本文： | 刘宇,徐焕文,滕文华,姜静,刘桂丰.白桦全同胞子代测定及优良家系早期选择[J].北京林业大学学报,2017,39(2):1-8. |
| |
| 作者姓名： | 刘宇 徐焕文 滕文华 姜静 刘桂丰 |
| |
| 作者单位： | 林木遗传育种国家重点实验室, 东北林业大学林学院 |
| |
| 基金项目： | 珍贵用材树种新品种选育技术研究 |
| |
| 摘 要： | 开展种子园全同胞家系造林试验不仅能够选择出优良杂交亲本和杂交组合，而且也能加快种子园的改良进程。本文以白桦种子园中产种母树为试材，按测交系交配设计进行控制杂交，共获得20个杂交组合，在帽儿山试验点营造试验林，对6年生试验林各组合的树高、胸径和材积等性状进行调查分析。树高、胸径和材积生长量在不同母本子代间和不同杂交组合间均表现极显著的差异(P＜0.01)，胸径与材积性状在不同父本子代间也表现显著的差异(P＜0.05)。根据多重比较结果分别进行了优良父本和优良母本的初选，同时，采用多目标决策法对参试的杂交组合进行多性状综合评价，将综合评价值大于0.80的前5位组合评选为优良杂交组合，入选率为25.00%，其中Q2和Q19家系为最优杂交组合。入选的优良杂交组合各性状均值分别较参试整体均值高3.85%、10.01%、20.82%，3个性状的遗传增益分别为2.90%、7.64%、16.22%。研究结果不仅为白桦全同胞子代选择提供理论依据，而且也为白桦高世代种子园的亲本选配提供参考。
|
| 关 键 词： | 白桦 全同胞 子代测定 |
| 收稿时间： | 2016-04-25 |
Full-sib progeny test and early selection in superior families of Betula platyphylla |
| |
| LIU Yu,XU Huan-wen,TENG Wen-hua,JIANG Jing,LIU Gui-feng.Full-sib progeny test and early selection in superior families of Betula platyphylla[J].Journal of Beijing Forestry University,2017,39(2):1-8. |
| |
| Authors: | LIU Yu XU Huan-wen TENG Wen-hua JIANG Jing LIU Gui-feng |
| |
| Institution: | State Key Laboratory of Tree Genetics and Breeding, School of Forestry, Northeast Forestry University, Harbin, Heilongjiang, 150040, P. R. China |
| |
| Abstract: | Carrying out afforestation test of full-sib families can not only select excellent hybrid parents and combination, but also accelerate the improved process of seed orchard. In this study, 20 progeny seedlings were got from seed mother trees in seed orchard by tester strain mating design. Tree height ( H) , diameter at breast height ( DBH) and volume ( V) of tested trees, which were planted 6 years ago in Maoershan Mountain of northeastern China, were measured and analyzed. The results showed that there had highly significant differences ( P <0. 01 ) in H, DBH, and V among different female parents and varied hybrid combinations, and there had significant differences (P<0. 05) in DBH and V among different male parents. According to the results of multiple comparisons, excellent male and female parents were selected. Meanwhile, the tested hybrid combinations were synthetically evaluated by multi-objective decision-making method. The top five combinations were defined as superior hybrid combinations with the comprehensive evaluating value greater than 0. 80 , and the selection ratio was 25. 00%, among them Q2 and Q19 family were the best hybrid combinations. The average of selected excellent hybrid traits were 3. 85%, 10. 01%, 20. 82% higher than that of overall, the genetic gain was 2. 90%, 7. 64%, 16. 22%, respectively. These results provide a theoretical basis for selection of birch full-sib progeny and a reference for affinity option of birch high generation seed orchard. |
| |
| Keywords: | Betula platyphylla full-sib progeny test |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《北京林业大学学报》浏览原始摘要信息 |
| 点击此处可从《北京林业大学学报》下载免费的PDF全文 |
|
