周 游,赵金山,2,李海梅,2,李士美,2

(1.青岛农业大学 园林与林学院,山东 青岛 266109;2.山东省青岛科拓恒通生物科技研究院有限公司，山东 青岛 266100)

乳酸菌对茶树生长和品质性状的影响

周 游1,赵金山1,2,李海梅1,2*,李士美1,2

(1.青岛农业大学 园林与林学院,山东 青岛 266109;2.山东省青岛科拓恒通生物科技研究院有限公司，山东 青岛 266100)

以3年生茶树品种“龙井43”为对象,研究了施用不同浓度的乳酸菌制剂对茶树生长和茶叶品质的影响。结果表明：施用乳酸菌制剂对茶树的生长及茶叶品质均具有良好的促进作用,其中对茶树株高、茎粗以及茶叶茶多酚、氨基酸含量的促进效果表现为肥水比1∶500处理>1∶300处理>1∶700处理,对单叶最大面积、茶叶咖啡碱含量的促进效果表现为1∶500处理>1∶700处理>1∶300处理。

乳酸菌;茶树;生长;品质；影响

Abstract： The effects of applying different concentrations of lactic acid bacteria preparation on the tree growth and leaf quality of 3-year-old tea (Camelliasinensis) variety “Longjing 43” were researched. The results indicated that the application of lactic acid bacteria preparation had good promoting effects on both the tree growth and the leaf quality of tea tree. The promoting effects of applying different concentrations of lactic acid bacteria preparation on the plant height, stem diameter, and the contents of tea polyphenol and amino acids in tea leaf revealed the following sequence: the treatment of 1∶500 (fertilizer-water ratio) > the treatment of 1∶300 > the treatment of 1∶700. The promoting effects of applying lactic acid bacteria preparations on the maximum single-leaf area, and the caffeine content in tea leaf showed the following order: the treatment of 1∶500 > the treatment of 1∶700 > the treatment of 1∶300.

Keywords： Lactic acid bacteria; Tea tree; Growth; Quality; Effect

近年来,我国的茶树种植面积、茶叶产量、茶叶销售量均呈现出不断增加的趋势[1]。为了达到农作物提质增产的目的,化肥的施用量也在成倍增长,使环境的污染加剧,影响了绿色农产品的质量安全[2]。随着人们环保意识的逐渐增强及对新技术研发的不断深入,探寻新肥源(特别是生物肥源)以逐步替代化肥成为了当前的研究热点[3-4]。

乳酸菌作为益生菌,是传统的发酵菌株,是公认的安全级(Generally Recognized as Safe, GRAS)菌株,在其发酵过程中会产生一些具有抑制其他微生物生长的代谢产物[5-6]。邵秀丽研究了混合乳酸菌与有机肥配施对大蒜的影响,发现施用微生物制剂可以提高大蒜的产量和品质[5]。韩文星利用优良PGPR菌株研制植物根际促生菌肥,测定并分析了其对燕麦的田间促生效果和品质的影响,结果发现此菌肥可明显促进燕麦的生长[7]。管鹏等采用两种菌……