| 不同种源苦楝种子形态特征和播种品质差异研究 |
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| 引用本文： | 李世全,喻才员.不同种源苦楝种子形态特征和播种品质差异研究[J].江西林业科技,2009(3):9-12. |
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| 作者姓名： | 李世全 喻才员 |
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| 作者单位： | 南昌市林业科学研究所,江西南昌,330025 |
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| 摘 要： | 本研究以苦楝自然分布区内8个种源的种子为研究对象，对种子形态特征和播种品质等生物学特性进行了测定，结果如下：（1）苦楝种子大小存在显著的产地差异，不同种源苦楝种子纵径、横径、纵横径比及千粒重差异均达0．01极显著水平。（2）不同种源苦楝种子发芽率均较高，变幅为50％～81％，平均发芽率为65％，变异系数为15％；发芽指数变化幅度为1．531—2．919，变异系数为19．45％；活力指数变幅为0．054～0．330，变异系数达56．64％。（3）综合种子形态指标和播种品质指标可以分析得出福建平潭，陕西杨凌、广西武鸣、安徽歙县等种源种子品质较好，湖北黄冈种源种子品质较差。
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| 关 键 词： | 苦楝种子 形态特征 播种品质 |
Differences in Morphological Characteristics and Seeding Quality of Melia azedarach Seeds from Different Provenances |
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| LI Shiquan,YU Caiyuan.Differences in Morphological Characteristics and Seeding Quality of Melia azedarach Seeds from Different Provenances[J].Jiangxi Forestry Science and Technology,2009(3):9-12. |
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| Authors: | LI Shiquan YU Caiyuan |
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| Institution: | Nanchang Forestry Science Institute;Nanchang Jiangxi 330025;China |
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| Abstract: | Taking the seeds from 8 provenances in natural distribution area of Melia azedarach as object for this study,the biological characteristics of Melia azedarach seeds such as morphological characteristics and seeding quality,etc.were determined.The results were as follows: The first,there were very significant origins differences in seed size of Melia azedarach,the longitudinal diameter,transverse diameter,vertical and horizontal diameter ratio and thousand grain weight of Melia azedarach seeds from different... |
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| Keywords: | Melia azedarach seeds Morphological characteristics Seeding quality |
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