文章摘要
插片后珍珠蚌生长性状及其无核珍珠成珠率、大小初步研究
Preliminary study on the growth traits of pearl mussels and pearl formation percentage, size of non-nucleated pearl after graft operation
投稿时间:2019-09-20  修订日期:2020-01-02
DOI:
中文关键词: 珍珠蚌  生长性状  无核珍珠  成珠率  大小  相关性
英文关键词: pearl mussel  growth character  non-nucleated pearl  pearl formation percentage  size  correlation
基金项目:国家自然科学基金;国家重点研发计划“蓝色粮仓科技创新”
作者单位E-mail
段胜华 上海海洋大学农业部淡水水产种质资源重点实验室 2248634761@qq.com 
刘振明 上海海洋大学农业部淡水水产种质资源重点实验室  
胡宏辉 上海海洋大学农业部淡水水产种质资源重点实验室  
刘晓军 上海海洋大学农业部淡水水产种质资源重点实验室
水产科学国家实验教学示范中心 
 
汪桂玲 上海海洋大学农业部淡水水产种质资源重点实验室
水产科学国家实验教学示范中心
上海市水产养殖工程技术研究中心
上海市水产养殖工程技术研究中心 
glwang@shou.edu.cn 
李家乐 上海海洋大学农业部淡水水产种质资源重点实验室
水产科学国家实验教学示范中心
上海市水产养殖工程技术研究中心
上海市水产养殖工程技术研究中心 
 
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中文摘要:
      为了筛选优质的珍珠蚌插片组合,探究不同种类珍珠蚌相互插片后生长性状间的差异和相关性,以及各组合无核珍珠成珠率,大小的差异,利用三角帆蚌、池蝶蚌、康乐蚌[池蝶蚌(♀)×三角帆蚌(♂)]、褶纹冠蚌分别作为供片蚌和育珠蚌,获得16个育珠蚌组合,测量各育珠组合的体质量、壳长、壳高、壳宽,比较16个育珠蚌组合及没有插片的三角帆蚌、池蝶蚌、康乐蚌、褶纹冠蚌对照组一年后的生长性状差异,对各生长性状相关性进行分析。测量每个育珠蚌所产无核珍珠的数量,大小,计算成珠率和圆度,分析不同组合之间无核珍珠间的差异。结果显示,以三角帆蚌、池蝶蚌为育珠蚌的组合生长性状优于对照组,而褶纹冠蚌为育珠蚌的组合插片后则生长受抑制。其中除了C-C育珠组外,各组合壳长与体质量之间的相关系数最大(0.824~0.972),C-C育珠组壳宽与体质量相关系数最大(0.782);三角帆蚌、池蝶蚌、康乐蚌之间的插片组合成珠率较高(98.75%~100%),其中S-S、S-C、C-C育珠组插片成珠率达到100%。以三角帆蚌、池蝶蚌为育珠蚌的组合所产珍珠规格较大且珍珠较圆,在各育珠组合内珍珠大小与直径差百分比成显著正相关。综和比较生长性状、成珠率及珍珠大小圆度,S-S、S-C、C-C插片后生长性能较好,成珠率高(100%)珍珠规格较大,珍珠较圆,该结果为探索不同珍珠蚌生长性状相关性及其所产无核珍珠成珠率、大小的比较提供重要依据。
英文摘要:
      In order to screen the high-quality combination of donor and host mussels, explore the difference and correlation on the growth traits of different pearl mussels after graft operation, compare the difference of the pearl-forming percentage and size in each combination, by using Hyriopsis cumingii, Hyriopsis schlegeli, Kangle clam[Hyriopsis cumingii(♀) x Hyriopsis schlegeli(♂)] and Cristaria plicata as donor and host mussels respectively, 16 pearl mussels combinations were obtained. In addition, 4 species pearl mussels without graft operation were taken as control group. 16 combinations and 4 control groups were compared by measuring the growth traits (body weight, shell length, shell height and shell width) at the first year after grafting, and as the same time the correlation of growth traits of each combination was analyzed. The number and size of non-nucleated pearl in each combination was measured, the pearl formation percentage and roundness were calculated and the difference among different combination was analyzed. The results showed that the growth traits were greater than corresponding values of control group when H.cumingii, H.schlegeli were host mussels. However, the growth of C.plicata groups was inhibited; Except for the C-C group, the correlation coefficient between shell length and body weight was the largest (0.824~0.972) among each group. The correlation coefficient between shell width and body weight of C-C group was largest(0.782); The combinations among H.cumingii, H.schlegeli and Kangle clam had higher pearl formation percentage (98.75%~100%). And the pearl formation percentage of S-S, S-C and C-C groups reached 100%. The pearls when H.cumingii, H.schlegeli were host mussels were larger in size and rounder in shape. There was a significant positive correlation between the size of pearls and the percentage difference of diameters in all pearl combinations. The results showed that S-S、S-C、C-C groups worked best. The results provided an important basis for the exploration of the correlation between the growth traits of different pearl mussels and the comparison of the pearl-forming rate and size of the seedless pearls produced.
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