| 油松26个种源苗期生长及光合特性比较 |
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| 引用本文： | 赵晴晴,王傲楠,王壹,黄琛,杨俊明,张国君.油松26个种源苗期生长及光合特性比较[J].东北林业大学学报,2016(11):19-23. |
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| 作者姓名： | 赵晴晴 王傲楠 王壹 黄琛 杨俊明 张国君 |
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| 作者单位： | 河北科技师范学院，昌黎，066600 |
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| 基金项目： | 林业公益性行业科研专项(20100402资助。 |
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| 摘 要： | 为了筛选油松优良种源,调查了26个种源1年生和2年生苗的株高和地径,1年生苗的根长、侧根数、根茎鲜干质量,以及苗期的光合参数。分析了各性状间的相关系数,将2年生苗高和地径作为指标进行油松不同种源苗期生长的综合评价。结果表明:1年生和2年生苗的株高和地径在26个种源间均差异显著,1年生苗的茎鲜质量和根干质量差异显著;光合速率、蒸腾速率和叶片气孔导度均存在显著差异。株高和地径的隶属函数值高于当地种子园种源(平泉)的5个种源分别是内蒙古宁城、辽宁北票、山西隰县、山西和顺和河北围场。
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| 关 键 词： | 油松 种源 苗木 株高 地径 |
Seedling Growth and Photosynthetic Characteristics of 26 Provenances of Pinus tabulaeformis |
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| Abstract: | We studied the seedling growth and photosynthetic traits of 26 provenances of Pinus tabulaeformis to select superior provenances .We analyzed the variance and correlation on height , basal diameter ,root length , root and stem fresh and dry weight of 1-and 2-year seedlings , photosynthetic parameters of those provenance, and measured the membership value of height and basal diameter of 26 provenances .The variance on growth and photosynthetic traits of 1-and 2-year seedlings among 26 provenances were both significant for height , basal diameter and photosynthetic parameters , but for root dry weight and stem fresh weight of 1-year seedlings .Based on correlation coefficients between growth traits and photosynthetic parame-ters, height and basal diameter were selected for comprehensive evaluation .The top five provenances of P.tabulaeformis were Neimeng Ningcheng , Liaoning Beipiao , Shanxi Xixian , Shanxi Heshun and Hebei Weichang according to average of membership value of height and basal diameter . |
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| Keywords: | Pinus tabulaeformis Carr Provenance Seedling Height Basal diameter |
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