广西植物Issue(6)：868-874,941,8.DOI:10.11931/guihaia.gxzw201410014
茶园土壤及与茶叶中微量元素锌硒含量相关性的研究
Correlation of zinc and selenium contents in tea and the planting soil
摘要
Abstract
The discussion for the plant adaptation to environment and the function and transition of inclusions has be-come a hot research topic.This article selected four plots from Guizhou famous Fenggang zinc-selenium tea and Meit-an Tsui bud production regions,established twelve samples,studied the change of trace elements,zinc and selenium contents,in different tea garden soils and the tea in corresponding.The results were as follows:(1)In four plots, the contents of zinc in the uncultivated original soil were higher than sample soil in three plots,but the contents of se-lenium had no obvious regular change.The standard deviations of zinc and selenium contents were greater than 5% of average in all samples,that mean the soil uniformity of the four plots were all relatively low;(2)Significant differ-ences were exhibited in the zinc content between new leaves(one bud and two leaves)and old leaves in four plots,while the difference in selenium content had no obvious regular change.(3)The transfer of zinc was obvious in tea,it transferred from old leaves to new leaves,and new leaves was higher.The content of selenium was rare in tea and no obvious rule between old leaves and new leaves.The content of zinc in new leaves was highly significant positive cor-relation with the zinc content in 0-20 cm surface soil and 21-40 cm deep soil samples(P <0.01),the coefficient correlation was 0.768.The selenium content in new leaves had a significant positive correlation with the 0-20 cm surface soil (P <0.05).The zinc and selenium were absorbed and translocated from soil by tea roots usually.The ab-sorption and transfer efficiency was not only decided by the content in soil,but also related to soil texture,tempera-ture,humidity and other external factors in the tea garden.There was a great difference between zinc and selenium in the physiological and metabolic pathway of tea.Therefore,we need to further research the the absorption and trans-formation of trace elements zinc,selenium in tea,the existing form and mechanism of action,the correlation of the zinc and selenium content in tea and garden planting soil in different production regions.These are of great significant application values for producing organic tea with appropriate zinc and selenium contents to human’s health.关键词
茶园土壤/锌/硒/茶树吸收/含量分析Key words
tea garden soil/zinc/selenium/tea absorption/content analysis分类
农业科技引用本文复制引用
刘海燕,黄彩梅,周盛勇,汪建文,邹天才..茶园土壤及与茶叶中微量元素锌硒含量相关性的研究[J].广西植物,2015,(6):868-874,941,8.基金项目
国家自然科学基金(31360075) （31360075）
贵州省优秀科教人才省长专项(黔省专合字[2012]31号) （黔省专合字[2012]31号）
贵州省社会发展科技攻关项目(黔科合 SY字[2012]3036号,[2013]3161号)。 （黔科合 SY字[2012]3036号,[2013]3161号）
