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| Evaluation of nut quality of 10 Carya illinoensis varieties in Hunan province |
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| DOI： |
| KeyWord:Carya illinoensis nut quality phenotypic traits economic characters comprehensive evaluation |
| FundProject:湖南省自然科学基金面上项目（2022JJ30999） |
| Author Name | Affiliation | | SONG Siqiong1, ZHONG Jiaqi2, QIN Hong1, LU Kaijing1, JIA Yuyao1, JIANG Yao1 | 1.Key Lab of Non-wood Forest Products of Forestry Ministry, Key Lab of Non-wood Forest Cultivation and
Protection of Education Ministry, Forestry Institute, Central South University of Forestry & Technology,
Changsha 410004, China
2.Institute of Food Science and Engineering, Central South
University of Forestry & Technology, Changsha 410004, China |
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| Abstract: |
| In order to study the difference in nut quality among varieties of Carya illinoensis (pecan) to screen out pecan with good performance in Hunan province, 10 pecan varieties and 2 walnut varieties were used as materials, and their phenotypic traits (side diameter, transverse diameter and longitudinal diameter, fruit shape index, fruit shape, shell surface, shell color, fruit top, fruit bottom (base), shell seal characteristics, diaphragm) and economic characters (nut weight, nut water content, shell thickness, kernel yield, difficulty in kernel extraction, kernel filling rate, kernel fullness, kernel color, kernel flavor, kernel oil content), and the fatty acid composition and content of oil, were determined and analyzed. In addition, correlation and principal component analysis were carried out on the quality indicators of different varieties of pecan to comprehensively evaluate the nut quality. The results showed that the fruit shape indexes of Shisheng No.1, Desirable, Shisheng No.3 and Forket were higher, with 2.24, 2.15, 2.15 and 1.99, respectively. The heavier single fruit was Kiowa, Forket and Desirable, with 9.24, 8.31 g and 8.06 g, respectively. Shisheng No.4 and Kiowa had higher kernel yield, with 57.86% and 57.08%, respectively. The varieties with high oil content was Forket, Peruque and Desirable, with 72.24%, 70.66% and 68.24%, respectively. Most of the quality indicators of pecans were correlated with each other. The principal component analysis showed that Desirable had the highest overall score, followed by Forket. In conclusion, Desirable with better flavor and easier shell breaking and Forket with high oil content and kernel fullness have excellent comprehensive performance in Hunan, and they are suitable for popularization and cultivation in Hunan. |
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