| 马尾松福建省域种源和家系36年生生长性状变异与评价 |
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| 引用本文： | 汤道平. 马尾松福建省域种源和家系36年生生长性状变异与评价[J]. 林业科学研究, 2023, 36(3): 179-184. DOI: 10.12403/j.1001-1498.20220499 |
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| 作者姓名： | 汤道平 |
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| 作者单位： | 华安西陂国有林场,福建华安 363800 |
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| 摘 要： | 目的 研究来自福建省3个地区的马尾松种源和家系生长性状的遗传变异规律,为马尾松优良种源和家系选育提供科学依据。 方法 以来自福建省龙岩、泉州和南平3个种源地共92个家系为材料,通过布置完全随机区组设计试验,分析评价树高、胸径和单株立木材积3个生长性状的遗传差异规律,选育优良种源和家系。 结果 龙岩地区种源平均树高、胸径和材积分别为18.76 m、22.23 cm和0.36 m3,其次是泉州地区种源分别为17.43 m、20.77 cm和0.31 m3,最后是低于对照的南平地区种源,树高、胸径和材积平均值分别为15.54 m、19.25 cm和0.25 m3。综合评价表明：泉州和龙岩材料可作为马尾松优良种源地,在家系水平上,3个生长性状的遗传力为3.81%～16.08%,同时利用聚类分析法将参试92个家系划分为优良、较优、中等和一般4种类型家系,相应数量分别为3、24、41和24个。家系77-561、79-569和79-568的树高、胸径和单株立木材积平均遗传增益分别达0.61%、4.78%和17.81%,将其评选为优良家系。 结论 从优良家系中选择优良单株并将其分为3类,优良单株22株,较优单株80株,一般单株52株。
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| 关 键 词： | 马尾松 种源 家系 遗传力 遗传增益 |
| 收稿时间： | 2022-10-24 |
Family Variation and Evaluation of Growth Traits On 36-year-old Pinus massoniana Lamb in Fujian Province |
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| TANG Dao-ping. Family Variation and Evaluation of Growth Traits On 36-year-old Pinus massoniana Lamb in Fujian Province[J]. Forest Research, 2023, 36(3): 179-184. DOI: 10.12403/j.1001-1498.20220499 |
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| Authors: | TANG Dao-ping |
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| Affiliation: | State Xipi Forest Farm of Hua'an, Hua'an 363807, Fujian, China |
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| Abstract: | Objective To study the genetic variation of growth traits of Pinus massoniana provenances and families from three regions in Fujian Province, and provide scientific basis for the selection of fine provenances and families of Pinus massoniana. Method A total of 92 families from three provenances in Longyan, Quanzhou and Nanping in Fujian Province were selected. The genetic differences of three growth traits, tree height, DBH and tree volume were analyzed and evaluated through a completely randomized block design experiment, and excellent provenances and families were selected. Result The results showed that the average tree height, DBH and volume of the provenances were 18.76 m, 22.23 cm and 0.36 m3 in Longyan, followed by 17.43 m, 20.77 cm and 0.31 m3 in Quanzhou, and 15.54 m, 19.25 cm and 0.25 m3 in Nanping, which was poorer than the control. The comprehensive evaluation showed that Quanzhou and Longyan materials can be used as the source of excellent provenance of Pinus massoniana. The heritability of the three growth traits at the family level ranged from 3.81% to 16.08%. At the same time, the 92 families were divided into excellent, superior, medium and average families by cluster analysis, with the corresponding number of 3, 24, 41 and 24 families, respectively. The average genetic gain of tree height, DBH and tree volume per tree with 77-561, 79-569 and 79-568 reached 0.61%, 4.78% and 17.81%, respectively. Conclusion The excellent individuals are selected from the excellent families and divided into three categories: 22 excellent individuals, 80 superior individuals and 52 general individuals. |
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| Keywords: | Pinus massoniana Lamb provenance family heritability genetic gain |
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