Seedling Testing and Family Selection of <i>Toona cillate</i> Elite Half-sib Family

CHEN Jian; YUAN Wei-gang; XIAO Xing-cui; YANG Yong-zhi; GUO Hong-ying; HUANG Zhen; CHEN Zhi

doi:10.16779/j.cnki.1003-5508.2017.05.002

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Volume 38 Issue 5

Nov. 2019

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Article Navigation > Journal of Sichuan Forestry Science and Technology > 2017 > 38(5): 8-12

CHEN Jian, YUAN Wei-gang, XIAO Xing-cui, YANG Yong-zhi, GUO Hong-ying, HUANG Zhen, CHEN Zhi. Seedling Testing and Family Selection of Toona cillate Elite Half-sib Family[J]. Journal of Sichuan Forestry Science and Technology, 2017, 38(5): 8-12. doi: 10.16779/j.cnki.1003-5508.2017.05.002

Citation:

CHEN Jian, YUAN Wei-gang, XIAO Xing-cui, YANG Yong-zhi, GUO Hong-ying, HUANG Zhen, CHEN Zhi. Seedling Testing and Family Selection of Toona cillate Elite Half-sib Family[J]. Journal of Sichuan Forestry Science and Technology, 2017, 38(5): 8-12. doi: 10.16779/j.cnki.1003-5508.2017.05.002

Seedling Testing and Family Selection of Toona cillate Elite Half-sib Family

doi: 10.16779/j.cnki.1003-5508.2017.05.002

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Forestry Bureau of Dongpo District in Meishan City, Meishan 620010, Sichuan;State-owned Forest Farm of Yucheng District, Ya'an 625000, Sichuan;Sichuan Academy of Forestry, Chengdu 610081, Sichuan

Received Date: 2017-07-03

Abstract

In order to establish genetic improvement foundation of Toona sinensis, a seedling raising tests in a light medium container were conducted by using 45 Toona sinensis elite and half-sib families progenys in Sichuan, and investigations were made on the growth condition of seedling height and ground diameter. The result showed that there were extremely significant differences in both seedling height and ground diameter among families, which showed good selecting and breeding potentiality for their abundant variation among half-sib families. After statistically analyzing, 4 fast-growing improved families in seedling period of Toona sinensis were screened out, by the name of No. 19, 18, 24, 8 of Pengxi. The average seedling height and ground diameter of 4 fast-growing improved families were 29.92 cm and 4.18 mm respectively, which were higher by 28.83% and 9.51% than the average figure of 23.22 cm and 3.82 mm of the 45 tested families, respectively, and the genetic gains were 23.59% and 7.99%, respectively. However, the growth performance in the seedling period could not demonstrate the growth law during whole life time but could help researchers finish early selection of selecting and breeding of Toona sinensis improved families.
- Toona sinensis;
- Elite tree;
- Half-sib families;
- Seedling performance;
- Family selecting
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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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Seedling Testing and Family Selection of Toona cillate Elite Half-sib Family

doi: 10.16779/j.cnki.1003-5508.2017.05.002

Forestry Bureau of Dongpo District in Meishan City, Meishan 620010, Sichuan;State-owned Forest Farm of Yucheng District, Ya'an 625000, Sichuan;Sichuan Academy of Forestry, Chengdu 610081, Sichuan

Received Date: 2017-07-03

Key words:

Abstract: In order to establish genetic improvement foundation of Toona sinensis, a seedling raising tests in a light medium container were conducted by using 45 Toona sinensis elite and half-sib families progenys in Sichuan, and investigations were made on the growth condition of seedling height and ground diameter. The result showed that there were extremely significant differences in both seedling height and ground diameter among families, which showed good selecting and breeding potentiality for their abundant variation among half-sib families. After statistically analyzing, 4 fast-growing improved families in seedling period of Toona sinensis were screened out, by the name of No. 19, 18, 24, 8 of Pengxi. The average seedling height and ground diameter of 4 fast-growing improved families were 29.92 cm and 4.18 mm respectively, which were higher by 28.83% and 9.51% than the average figure of 23.22 cm and 3.82 mm of the 45 tested families, respectively, and the genetic gains were 23.59% and 7.99%, respectively. However, the growth performance in the seedling period could not demonstrate the growth law during whole life time but could help researchers finish early selection of selecting and breeding of Toona sinensis improved families.