| 本文已被：浏览 2552次 下载 2045次 |
码上扫一扫！ |
|
|
| 乐昌含笑优树子代测定及选择* |
|
丘作忠,王润辉,郑会全,晏姝,韦如萍,胡德活,罗平峰,官思秀
|
|
韶关市国有九曲水林场,,广东省林业科学研究院 广东广州 ,广东省林业科学研究院 广东广州 ,广东省林业科学研究院 广东广州 ,广东省林业科学研究院 广东广州,广东省林业科学研究院 广东广州 ,
|
|
| 摘要: |
| 对九曲水林场乐昌含笑家系试验林6年生观测数据进行分析,方差分析结果表明树高、胸径和材积3个生长性状家系间差异达极显著水平,形质性状的冠幅也达极显著水平；相关分析表明生长与形质性状存在正相关关系；遗传参数估计结果生长性状的家系遗传力处于中等偏上水平,而大部分形质性状处于中等偏下水平；根据多重比较结果,以材积为选择目标,选出9个生长量大于群体均值10%的速生家系,现实增益介于14.85%～45.29%之间。 |
| 关键词: 乐昌含笑 家系 遗传变异 |
| DOI： |
| 分类号:S792.99 |
| 基金项目: |
|
| Plus-Trees Progeny Test and Selection of Michelia chapensis |
|
Qiu Zuozhong,,,,,Hu Dehuo, and
|
|
Guangdong Academy of Forestry,,
|
| Abstract: |
| Genetic variation analyses were carried out based on the data of families trial of Michelia chapensis Dandy established in 2006 in Dakengshan forest farm. Results of ANOVA indicated that the difference of three growth traits (height, DBH and volume) and one quality traits (crown width) reached significant level. Correlation analysis showed that positive correlation existed between growth and quality traits. The estimated genetic parameters confirmed that family heritability of growth traits was in moderate to upper level, and most of the quality traits were in below-moderate level. According to the results of multiple comparison of volume, nine fast-growing families were selected, whose realized gain were between 14.85% and 45.29%. |
| Key words: Michelia chapensis families genetic variation |
