| 沙棘的种下类型研究 |
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| 引用本文： | 廉永善 陈学林. 沙棘的种下类型研究[J]. 西北师范大学学报(自然科学版), 1997, 33(1): 36-46 |
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| 作者姓名： | 廉永善 陈学林 |
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| 作者单位： | 西北师范大学生物系(廉永善)，西北师范大学植物研究所(陈学林)，西北师范大学学报编辑部(王峰) |
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| 摘 要： | 对沙棘（Ｈｉｐｐｏｐｈａｅｒｈａｍｎｏｉｄｅｓｓｕｂｓｐ．ｓｉｎｅｎｓｉｓ）的性状变异进行了数量分析，发现在所分析过的性状中，以果实的形状、大小和色泽作为划分种下类型的依据是比较恰当和可行的；制定了种下类型划分的具体指标和命名原则．在此基础上，把分布于四川和甘肃两省的沙棘划分为２１个类型，对类型的形态特征和地理分布进行了全面记述；讨论了种下类型的分布格局、演化途径和物种形成式样
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| 关 键 词： | 沙棘 种下类型 性状变异 物种形成 |
Investigation of infraspecific patterns within Hippophae rhamnoides subsp. sinensis |
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| Lian Yongshan. Investigation of infraspecific patterns within Hippophae rhamnoides subsp. sinensis[J]. Journal of Northwest Normal University Natural Science (Bimonthly), 1997, 33(1): 36-46 |
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| Authors: | Lian Yongshan |
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| Abstract: | Infraspecific character variation within Hippophae rhamnoides subsp. sinensis have been numerically analysed,the results show that,of all characters analysed,the shape,size,and color characters of fruits are appropriate and feasible as main criteria in dividing infraspecific patterns.The indexes of dividing infraspecific patterns and the scheme for nomenclature have been drawn up.Upon above mentioned indexes, H.rhamnoides subsp. sinensis distributing in Sichuan and Gansu Provinces was classified into 21 patterns.Morphological features and geographical distribution of named patterns were discribed,then the evolutionary course and the speciation styles were further discussed. |
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| Keywords: | Hippophae rhamnoides subsp. sinensis infraspecific patternscharacter variationspeciation |
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