钙过量对不同茶树品种生化成分的影响

摘要

以“乌牛早”、“劲锋”、“平阳特早”一年生茶树幼苗为试验材料，研究了水培条件下钙过量对3个茶树品种新梢生化成分的影响差异。结果表明，不同茶树品种对钙过量处理的承受能力存在差异，其中钙过量处理对“乌牛早”品种茶多酚、氨基酸、咖啡碱、蛋白质含量均有显著影响，对可溶性糖含量的影响差异不显著；对“劲锋”品种各生化成分含量均没有显著影响；对“平阳特早”品种氨基酸、咖啡碱、蛋白质含量均有显著影响，而对茶多酚、可溶性糖含量的影响差异不显著。3个品种对高浓度钙离子反应的敏感性顺序为乌牛早＞平阳特早＞劲锋。%The annual tea seedlings of “Wuniuzao”,“Jinfeng” and“Pingyangtezao” were taken as ma-terials to study the effects of excessive calcium on the variation of biochemical components in shoots of different tea varieties.The results showed that the endurance to excessive calcium was different between different varie -ties.The excessive calcium had significant effects on the contents of tea polyphenols , amino acids, caffeine and protein , but no significant effects on soluble sugar content in “Wuniuzao”.For“Jinfeng”, the contents of all the biochemical components were not significantly affected by excessive calcium .For“Pingyangtezao”, the amino acids , caffeine and protein contents could be affected significantly , but the tea polyphenols and soluble sugar contents could not be affected significantly .The sensitivity of the 3 tea varieties responded to high con-centration calcium ion was in order of “Wuniuzao”>“Pingyangtezao”>“Jinfeng”.