不同种源小干松苗期生长特性 |
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引用本文: | 刘延君. 不同种源小干松苗期生长特性[J]. 安徽农业科学, 2016, 44(16). DOI: 10.3969/j.issn.0517-6611.2016.16.057 |
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作者姓名: | 刘延君 |
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作者单位: | 辽宁省实验林场,辽宁抚顺,113311 |
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基金项目: | 国家林业局“948”项目(2012-4-39),辽宁省科学技术计划重大项目(2011207002)。 |
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摘 要: | [目的]选育出适合辽宁地区生长的优良小干松种源。[方法]以从加拿大引进的10个小干松种源为研究对象,对不同种源3年生苗木的苗高和地径进行测定和分析,同时对不同育苗方式进行了评价。[结果]在不同种源小干松温室容器育苗中,3年生苗高平均为0.30 m,苗高最大的是6号种源(0.34 m);地径平均为0.81 cm,地径最大的是2号种源(0.89 cm)。在不同种源小干松露地育苗中,3年生苗高平均为0.34 m,苗高最大的是2号种源(0.52 m);地径平均为1.07 cm,地径最大的是1号种源(1.27 cm)。不同育苗方式比较表明,小干松温室容器育苗在苗高和地径方面均差于露地育苗。[结论]根据苗高和地径的结果,初步筛选出1号、2号和6号种源为优良种源。
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关 键 词: | 小干松 苗期 苗高 地径 |
The Growth Characteristics of Different Provenances of Pinus contorta at Seedling Period |
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Abstract: | Objective] The aim was to screen out excellent Pinus contorta provenance, which is suitable for cultivating in Liaoning Region. [ Method] With 10 Pinus contorta provenance introduced from Canada as study object, seedling height and ground diameter of 3 years old seedlings were determined and analyzed, different seedling raising methods were evaluated. [ Result] In greenhouse, the average seedling height was 0. 03 m, the maximum was No. 6 provenance (0. 34 m);the average ground diameter was 0. 81 cm, the maximum was No. 2 prov-enance(0. 89 m). In open ground, the average seedling height was 0. 34 m, the maximum was N0. 2 provenance(0. 52 m); the average ground diameter was 1. 07 cm, the maximum was No. 1 provenance(1. 27 cm). Comparison of different seedling raising methods showed that greenhouse was inferior to open ground in seedling height and ground diameter. [ Conclusion] According to seedling height and ground diame-ter, No. 1, No. 2 and No. 6 was selected as excellent provenance. |
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Keywords: | Pinus contorta Seedling period Seedling height Ground diameter |
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