Half-sib Progeny Test and Excellent Family Selection of the 3rd Generation Seed Orchard for <i>Cunninghamia lanceolata</i>

JIA Chen; ZHANG Shi-lin; DUAN Ai-guo; LUO Jian-xun; LIU Fu-rong; YANG Ma-jin

doi:10.16779/j.cnki.1003-5508.2016.06.015

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Volume 37 Issue 6

Nov. 2019

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Article Navigation > Journal of Sichuan Forestry Science and Technology > 2016 > 37(6): 72-75

JIA Chen, ZHANG Shi-lin, DUAN Ai-guo, LUO Jian-xun, LIU Fu-rong, YANG Ma-jin. Half-sib Progeny Test and Excellent Family Selection of the 3rd Generation Seed Orchard for Cunninghamia lanceolata[J]. Journal of Sichuan Forestry Science and Technology, 2016, 37(6): 72-75. doi: 10.16779/j.cnki.1003-5508.2016.06.015

Citation:

JIA Chen, ZHANG Shi-lin, DUAN Ai-guo, LUO Jian-xun, LIU Fu-rong, YANG Ma-jin. Half-sib Progeny Test and Excellent Family Selection of the 3rd Generation Seed Orchard for Cunninghamia lanceolata[J]. Journal of Sichuan Forestry Science and Technology, 2016, 37(6): 72-75. doi: 10.16779/j.cnki.1003-5508.2016.06.015

Half-sib Progeny Test and Excellent Family Selection of the 3rd Generation Seed Orchard for Cunninghamia lanceolata

doi: 10.16779/j.cnki.1003-5508.2016.06.015

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Sichuan Academy of Forestry, Chengdu 610081;Forestry Bureau of Ziyang, Ziyang 641300, Sichuan, China;Chinese Academy of Forestry, Beijing 100091;West China Normal University, Nanchong 637002, China

Received Date: 2016-08-02

Abstract

Based on the 20 open-pollinated families in the third-generation seed orchard of Cunninghamia lanceolata from the forest farm of Fujian province,the growth traits of 2-year-old half-sib progeny were investigated and analyzed in Hongya forest farm of Sichuan province.The results indicated that the average seedling height and variation coefficient were 14.72 cm and 20.30%,respectively; the average ground diameter and variation coefficient were 3.11 mm and 20.91%,respectively.And there existed significant differences in seedling height and ground diameter among different families.The family heritability of seedling height,ground diameter was 0.886 and 0.874,indicating the great family heritability for growth traits.4 excellent families were selected on the basis of comprehensive assessment.The average tree height was 16.81 cm,the genetic gain 11.00%,and the average ground diameter was 3.47 cm,the average genetic gain was 9.05%.The selected excellent families could be reserved for further test and assessment.
- Cunninghamia lanceolata;
- Half-sib progeny;
- Seedling test;
- Excellent family
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Half-sib Progeny Test and Excellent Family Selection of the 3rd Generation Seed Orchard for Cunninghamia lanceolata

doi: 10.16779/j.cnki.1003-5508.2016.06.015

Sichuan Academy of Forestry, Chengdu 610081;Forestry Bureau of Ziyang, Ziyang 641300, Sichuan, China;Chinese Academy of Forestry, Beijing 100091;West China Normal University, Nanchong 637002, China

Received Date: 2016-08-02

Key words:

Abstract: Based on the 20 open-pollinated families in the third-generation seed orchard of Cunninghamia lanceolata from the forest farm of Fujian province,the growth traits of 2-year-old half-sib progeny were investigated and analyzed in Hongya forest farm of Sichuan province.The results indicated that the average seedling height and variation coefficient were 14.72 cm and 20.30%,respectively; the average ground diameter and variation coefficient were 3.11 mm and 20.91%,respectively.And there existed significant differences in seedling height and ground diameter among different families.The family heritability of seedling height,ground diameter was 0.886 and 0.874,indicating the great family heritability for growth traits.4 excellent families were selected on the basis of comprehensive assessment.The average tree height was 16.81 cm,the genetic gain 11.00%,and the average ground diameter was 3.47 cm,the average genetic gain was 9.05%.The selected excellent families could be reserved for further test and assessment.