生态环境学报Issue(3)：417-422,6.
钾浓度对茴香植株生长发育、精油含量和组分的影响
The effect of potassium concentrations on growth, essential oil contents and components of fennel plant (Foeniculum vulgare Mill.)
摘要
Abstract
The objective of this study was to reveal the response characteristics and the internal correlation of fennel plant growth and essential oil accumulation to potassium concentrations. Effect of different potassium concentrations to fennel plant growth, essential oil content and components was studied by using method of solution culture, and making Japanese garden formula’s potassium content as 1K, and designing 1/8K, 1/4K, 1/2K, 1K and 2K treatments. The results showed that branch number, number of nodes, inflorescence number, shoot fresh weight(F.W), fresh and dry weight(D.W) , total nitrogen, protein nitrogen, total carbon, soluble sugar, C/N, essential oil content, yield of essential oil per plant and pigment indexes were significantly affected by different potassium concentration treatments. In general, growth and development of fennel were the best at 1K , while 1/4K、1/8K and 1K were tested to be the best treatments for essential oil content of fennel. Correlation analysis showed that:essential oil content was positively correlated with total carbon content (r=0.72) and soluble sugar content(r=0.70); yield of essential oil per plant was positively correlated to total nitrogen content(r=0.49). A total of 23 kinds of components in essential oil were identified, and 17 kinds of components of essential oil were significantly different among different potassium concentration treatments. (E)-anethole, which is the dominant essential oil component, contributed 74.75% to79.15% to the total amount of oil. And the following most abundant chemical is limonene, which had the contents of 8.25%to 14.81%in the total amount of oil, while Dill Apiol, the third abundant chemical, had the relative amount of 2.04%to 3.82%. The three components were significantly different among different potassium concentration treatments. Conclusion showed that different potassium concentrations affect not only the fennel plant growth, but also the yield and concentration of essential oil. And appropriate concentration of potassium can contribute to the high rate of plant growth and yield of essential oil.关键词
钾浓度/茴香/生长发育/精油Key words
potassium concentrations/fennel/growth/essential oil分类
农业科技引用本文复制引用
何金明,肖艳辉,王羽梅,潘春香..钾浓度对茴香植株生长发育、精油含量和组分的影响[J].生态环境学报,2013,(3):417-422,6.基金项目
国家自然基金项目(31070287)；广东省科技计划项目 （31070287）
