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| Comparison of fruit quality differences between two varieties of Camellia oleifera fruit at different maturity |
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| DOI： |
| KeyWord:Camellia oleifera maturity fruit quality principal component analysis |
| FundProject:国家重点研发计划（2019YFD1002401） |
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| Download times: 1931 |
| Abstract: |
| In order to clarify the best harvest time of Camellia oleifera fruit, the changes of the phenotypic traits, nutrients and fatty acid composition and content of seed kernel oil of Ganshi 83-4 and Ganshi 447 were determined at different maturity, and the quality of the two varieties of Camellia oleifera fruits at different maturity were comprehensively evaluated by principal component analysis. The results showed that with the increase of maturity, the single fruit quality and moisture content of the two varieties of Camellia oleifera fruits showed an overall decreasing trend, while the seed yield of fresh fruits and kernel yield of dry seed showed an overall increasing trend. The oil content of Ganshi 83-4 kernels reached the maximum (44.16%) at the fourth maturity, while the oil content of Ganshi 447 kernels reached the maximum (48.56%) at the second maturity. The soluble sugar content of Ganshi 447 and Ganshi 83-4 kernels were inconsistent with maturity, but the maximum values (11.35%) appeared at the fourth maturity of the former and that was 13.05% at the fifth maturity of the latter. The protein content of the seed kernels of the two varieties of Camellia oleifera at different maturity was low and generally stable. The fatty acid composition and content of the seed kernel oil of the two varieties of Camellica oleifera was different. With the increase of maturity, the contents of oleic acid and monounsaturated fatty acid increased, the contents of linoleic acid and polyunsaturated fatty acid decreased, while the contents of saturated fatty acid and unsaturated fatty acid varied to a less extent, maintaining about 11% and 89%, respectively. The results of principal component analysis showed that the optimal harvest time of Ganshi 83-4 and Ganshi 447 were at the fifth and fourth maturity levels, respectively. In conclusion, Ganshi 83-4 and Ganshi 447 Camellia oleifera had better fruit quality at higher maturity. |
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