Preliminary Evaluation on Fine Clones of Chinese fir Based on Sexual Progeny Tests

QI Ming; HE Gui-ping; CAO Gao-quan; CHENG Ya-ping; LUO Xiu-bao; WENG Chun-mei

In order to shorten the breeding cycle of Chinese fir (Cunninghamia lanceolata) clone, and select good clones with stronger tolerance to barrenness, in the light of 31 clones, artificial design nutrient environments, the experiment was carried out according to two factors randomized blocks, 8 individuals (in 8 cups) in each plot. After the experiment finished, the height and diameter at base of seedling were measured on entire experiment. The other traits such as the aboveground biomass, the underground biomass, the total biomass, the root-shoot ratio and the entire P content of individual have been measured according to sampling method. The results of statistical analysis showed that: (1)There were obvious differences among the clones in all the traits besides root-shoot ratio; (2)Obvious differences in all the traits existed under different nutrient stress and different sites conditions among different clones; (3)The interaction of clone × nutrient coercion processing was complex; (4)The research traits showed a certain variation and repeatability over intermediate level. Based on the variance analysis (fixed model), the PCA selection index under different situations was derived and obtained. Using certain selected intensity, 13 outstanding clones were evaluated from the entire experiment. Among them 7 clones were anti-phosphorus and the anti-potassium lack (happy nitrogenous fertilizer) clones, 7 clones were anti-phosphorus lack (happy nitrogen potassium fertilizer) clones, 8 fine clones were selected under normal nutrient management (happy nitrogenous, phosphorus, potassium), there were 5 fine clones with good performance, and simultaneously very stable under all kind of conditions. These clones may be applied to field tests.

1. Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang 311400, Zhejiang, China

2. Qingyuan Forest Farm of Zhejiang Province, Qingyuan 323800, Zhejiang, China

3. Forestry Bureau of Suichang County, Zhejiang Province, Suichang 323300, Zhejiang, China

Received Date: 2012-06-12

Abstract: In order to shorten the breeding cycle of Chinese fir (Cunninghamia lanceolata) clone, and select good clones with stronger tolerance to barrenness, in the light of 31 clones, artificial design nutrient environments, the experiment was carried out according to two factors randomized blocks, 8 individuals (in 8 cups) in each plot. After the experiment finished, the height and diameter at base of seedling were measured on entire experiment. The other traits such as the aboveground biomass, the underground biomass, the total biomass, the root-shoot ratio and the entire P content of individual have been measured according to sampling method. The results of statistical analysis showed that: (1)There were obvious differences among the clones in all the traits besides root-shoot ratio; (2)Obvious differences in all the traits existed under different nutrient stress and different sites conditions among different clones; (3)The interaction of clone × nutrient coercion processing was complex; (4)The research traits showed a certain variation and repeatability over intermediate level. Based on the variance analysis (fixed model), the PCA selection index under different situations was derived and obtained. Using certain selected intensity, 13 outstanding clones were evaluated from the entire experiment. Among them 7 clones were anti-phosphorus and the anti-potassium lack (happy nitrogenous fertilizer) clones, 7 clones were anti-phosphorus lack (happy nitrogen potassium fertilizer) clones, 8 fine clones were selected under normal nutrient management (happy nitrogenous, phosphorus, potassium), there were 5 fine clones with good performance, and simultaneously very stable under all kind of conditions. These clones may be applied to field tests.

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Reference (13)

[1]	王明庥. 林木遗传育种学[M]. 北京: 中国林业出版社, 2001: 200-225
[2]	齐明. 我国杉木无性系选育的成就、问题和对策[J]. 世界林业研究, 2007, 20(6): 50-55
[3]	马祥庆, 刘爱琴, 黄宝龙, 等. 氮素高效基因型杉木无性系的选择研究[J]. 林业科学, 2002, 38(6): 53-57
[4]	梁霞, 刘爱琴, 马祥庆, 等. 磷胁迫对不同杉木无性系酸性磷酸酶活性的影响[J]. 植物生态学报, 2005, 29(1): 54-59
[5]	梁霞, 刘爱琴, 马祥庆, 等. 不同杉木无性系磷素特性的比较[J]. 植物生态学报, 2006, 30(6): 1005-1011
[6]	余常兵, 陈防, 万开元. 杨树人工林营养及施肥研究进展[J]. 西北林学院学报, 2004, 19(3): 67-71
[7]	薛丹, 陈金林,于彬, 等. 杨树苗木配方施肥试验[J]. 南京林业大学学报: 自然科学版, 2009, 33(5): 37-40
[8]	周志春,谢钰容,金国庆, 等. 马尾松种源对磷肥的遗传反应及根际土壤营养差异[J]. 林业科学, 2003, 39(6): 62-67
[9]	齐明. 林木遗传育种中试验统计法新进展[M]. 北京: 中国林业出版社, 2009: 32-37
[10]	齐明, 何贵平, 李恭学, 等. 杉木不同水平试验林的遗传参数估算和高世代育种的亲本评选[J]. 东北林业大学学报, 2011, 39(5): 4-8
[11]	叶培忠,陈岳武,陈世彬,等. 杉木遗传型环境互作和遗传稳定性研究: I. 杉木遗传型地点年份的分析[J].南京林产工业学院学报, 1980(3): 35-46
[12]	张贵云, 胡蕖. 杉木无性系与环境的交互效应及其稳定性研究[J]. 贵州林业科技, 2006, 34(2): 9-14
[13]	饶显生, 程书建, 刘化桐, 等. 杉木无性系苗期选择可靠性分析[J]. 福建林学院学报, 2002, 22(1): 82-85

Preliminary Evaluation on Fine Clones of Chinese fir Based on Sexual Progeny Tests

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