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Received:September 08, 2017Revised:September 25, 2017
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Genetic Test and Selection of Progenies from Second-generation Seed Orchard of Cunninghamia lanceolata in Northern Guangdong Province
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Abstract:
In order to select the superior Cunninghamia lanceolata families in north Guangdong province, and prepare excellent genetic resource for the higher generation breeding, the growth investigation of 15-yearold C. lanceolata second generation pedigree was conducted. Bartlett test proved the data meet normality. The ANOVA results showed that there were no significant effect between pedigree and repeat interaction, and the pedigree effect was significantly different. Estimation of genetic parameter showed that the family and individual heritability of tree height, DBH and volume were 0.186 and 0.028, 0.252 and 0.046, 0.274 and 0.048, respectively. Superior family selection firstly, and then select the most superior individual within the superior family, these were the main method in this study. Four superior families and seven superior individuals were selected and collected for collection and preservation. After observation, it was confirmed that they were excellent materials and could be supplemented with C. lanceolata propagation materials.
Key words:  Cunninghamia lanceolata; second-generation seed orchard; genetic test; selection

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