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Comparison of morphological traits related to pearl performance in Hyriopsis cumingii from three geographical populations and path analysis on shell weight
Author(s): WEN Haibo, GU Ruobo, CAO Zheming, NIE Zhijuan, YANG Binbin, HUA Dan
Pages: 161-
166
Year: 2012
Issue:
2
Journal: Journal of Shanghai Fisheries University
Keyword: triangle pearl mussel; shell morphology; traits to related pearl performance; nacre color;
Abstract: 对3个野生三角帆蚌种群的贝壳形态及珍珠层颜色特征进行比较分析。结果表明:洞庭湖(DT)种群贝壳为短圆型,太湖(TH)种群为长扁型,而鄱阳湖(PY)种群介于两者之间;洞庭湖种群的体重指数、壳重指数、壳宽指数及壳厚指数等育珠相关性状均显著高于其他两个种群。对壳重的通径分析表明:3个群体中,壳厚对壳重的直接影响最大,壳长次之,壳高、壳宽主要通过壳厚和壳长间接影响壳重。在珍珠层边缘区域,后端出现紫色的比例...
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