摘要
以我国6个省(市、区)的半野生油茶及土壤为研究对象,分析评价了10个产地茶油品质与土壤养分之间的相互关系.结果表明:(1)除四川自贡土壤为碱性外,其余均为酸性且土壤养分普遍偏低;影响土壤营养状况的主要因子是有机质、N及交换性Mg,其次是P、交换性Ca,最后是K.(2)不同产地间种仁含油率及脂肪酸组成均有一定差异,其中亚油酸含量变异最大.种仁含油率最高的为重庆黔江(50.06%),最低的为广西三江(37.51%).(3)种仁含油率与土壤养分无显著相关性;硬脂酸含量与土壤全N、含油率呈显著正相关,而亚油酸含量与土壤有机质、水解N呈显著正相关,与油酸含量呈极显著负相关.
Cameltia oleifera seeds and soil samples were collected from ten planting areas, and oil content and its components with their relations to soil nutrients were analyzed. The results showed that most soil samples were acid except that of Zigong of Sichuan, and the soil nutrient contents were generally low. Soil nutrient were chiefly effected by soil organic matter, N and exchangeable Mg, P and exchangeable Ca, K. Fatty acid of Camellia oleifera oil was mainly composed of oleic, linoleic, palmitic acid and stearic acid, and there were still some differences among habitats, the content of linoleic acid had the lorgest variation. Oil content of the kernel from Qianjiang of Chongqing was the highest （50. 06%）, Sanjiang of Guangxi population had significantly lower oil content than that from other groups. Correlation analysis showed that oil content had not correlated with soil nutrients analyzed, but the content of stearic acid and oil content, total nitrogen of soil was in significant positive correlation, soil organic matter and available nitrogen had significant positive correlation with the content of linoleic acid, linoleic acid and oleic acid was in significant positive correlation.
出处
《四川大学学报（自然科学版）》
CAS
CSCD
北大核心
2013年第4期869-874,共6页
Journal of Sichuan University(Natural Science Edition)
基金
四川省科技厅科技支撑项目(2009FZ0059)
关键词
油茶
脂肪酸组成
含油率
土壤养分
相关性分析
Camellia oleifera
fatty acid
oil content
soil nutrient
correlation analysis
