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| Evaluation on the introduction and cultivation of Yunnan Camellia oleifera superior varieties in low thermal valley area of Guizhou |
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| DOI： |
| KeyWord:Camellia oleifera introduction and cultivation yield quality adaptability Guizhou |
| FundProject:贵州省林业种苗站“木本油料蒜头果和云油系列油茶新品种引种及栽培技术研究”项目（2023-GZZM-KBM-03） |
| Author Name | Affiliation | | ZHANG Jian1, GUO Guangzheng2, XU Debing3，KANG Zhuanmiao2,
WANG Daigu2, LIANG Yongshun1 | 1.Seedling Station of Xingyi, Xingyi 562400, Guizhou, China
2.Subtropical Crops Institute of Guizhou,
Guiyang 550025, China
3.Yunnan Academy of Forestry, Kunming 650201, China |
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| Abstract: |
| To clarify the adaptability of the Yunnan Camellia oleifera series of superior varieties in low thermal valley area of Guizhou for introduction and cultivation，the cultivation performances of five Yunnan Camellia oleifera superior varieties, namely No.3, No.4, No.9, No.13, and No.14, in low thermal valley area of Guizhou were analyzed and evaluated based on the trait indicators such as fruits, seeds, yields and oil quality. The results indicated that regarding fruit traits, the fruit with the largest mass was No.14, the one with the best fruit uniformity was No.9, the one with the thinnest pericarp was No.13, the one with the roundest fruit was No.13 and No.9, and the rates of seed extraction from fresh fruits and dry fruits were both the highest for No.13. In terms of seed traits, No.9 had the highest seed mass, No.3 had the best seed uniformity, No.13, No.9 and No.4 had the highest kernel yield of dry seed, seed moisture content and seed kernel fat content, respectively. In terms of fruit yield and oil quality, the 3-year average fruit yield of No.3 was the highest at 3.59 kg per plant, No.13 had the highest fruit oil content, and the five Yunnan Camellia oleifera varieties all had more than 90% unsaturated fatty acids. No.9, No.14 and No.4 had the highest content of saturated fatty acids, unsaturated fatty acids and monounsaturated fatty acids, respectively. Correlation analysis demonstrated a strong correlation among the trait indicators of fruits, seeds and yields. The ranking of the introduction performance evaluation for the five Yunnan Camellia oleifera varieties obtained through principal component analysis was as follows: No.13, No.4, No.3, No.14 and No.9. In conclusion,it is recommended to prioritize the promotion and cultivation of No.13, No.4 and No.3 in low thermal valley area of Guizhou to enrich the variety structure of Camellia oleifera in this region. |
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