期刊
AQUACULTURE RESEARCH
卷 45, 期 7, 页码 1126-1132出版社
WILEY-BLACKWELL
DOI: 10.1111/are.12052
关键词
pearl colour; imaging and colour-measuring system; host oyster; donor oyster; Pinctada martensii
类别
资金
- Key Project of Chinese Ministry of Education [211143]
- National Program on Key Basic Research Program of China (973 Program) [2010CB126405]
- National Science Foundation of China [30960295]
- National Science & Technology Pillar Program [2012BAC18B04]
- Foundation for Young Scholar of Hainan University [qnjj1008]
Cultured free round pearls are produced by implanting a spherical nucleus with a small piece of nacre-secreting mantle graft from a donor oyster into the gonad of a recipient oyster (host). To examine the possible contribution of host and donor oysters to the colouration of the harvested pearls, the CSE-1 Imaging and Color-Measuring System were used to quantitatively measure the L*a*b* values of donor and host shells and the produced pearls in Pinctada martensii. Results showed that the colour of pearls had significant positive correlation (r=0.1-0.22, P=0.00) with that of donors, but had no correlation with that of host oysters, thus convincingly confirmed the contribution of nacre colour of donor to the realization of pearl quality of colour. To further clarify the relationship between the donor and the pearl colour, the donors from pearls of good and poor colour quality were further compared and the results demonstrated the significant difference in L* values (P<0.05) and insignificant difference in a* and b* values, suggesting the necessity of selecting donors with bright and lustrous nacre in pearl production.
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