| 1年生桢楠容器苗质量分级研究 |
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| 引用本文： | 陈孝,纪程灵,周正清,彭先凤.1年生桢楠容器苗质量分级研究[J].中国农学通报,2014,30(16):30-34. |
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| 作者姓名： | 陈孝 纪程灵 周正清 彭先凤 |
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| 作者单位： | 1. 湖南省林业科学院2. 保靖县林业局3. 龙山县林业局 |
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| 基金项目： | 珍贵用材树种种质资源收集与良种选育 |
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| 摘 要： | 为了制定1年生桢楠容器苗的分级标准，提高桢楠苗木种植成活率，采用系统聚类分析方法，建立以苗高和地径为质量分级指标的分级体系，获得3级分级标准，即Ⅰ级苗：苗高≥38 cm，地径≥0.65 cm；Ⅱ级苗：38 cm＞苗高≥31.7 cm，0.65 cm＞地径≥0.56 cm；Ⅲ级苗：苗高＜31.7 cm，地径＜0.56 cm。
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| 关 键 词： | 经济效益 经济效益 |
| 收稿时间： | 2013/12/28 0:00:00 |
| 修稿时间： | 2014/2/24 0:00:00 |
Study on Grading Standard of Seedling Quality of One Year Old Container Seedlings of Phoebe zhennan |
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| Abstract: | In order to improve the survival ratio of planting seedlings of Phoebe zhennan, the grading standard of 1 years old container seedlings of Phoebe zhennan was studied using cluster analysis. The results showed that the seedling quality might be estimated by seedling height and basal diameter. Three grades were determined: Grade One (seedling height≥ 38 cm, basal diameter≥ 0.65 cm), Grade Two (38 cm> seedling height≥ 31.7 cm, 0.65 cm> basal diameter≥ 0.56 cm), Grade Three (seedling height< 31.7 cm, basal diameter< 0.56 cm). |
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| Keywords: | seedling grading |
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