农学学报2024，Vol.14Issue(11)：7-12,6.
植物生长调节剂对春茶新梢生长及品质的影响
Effects of Plant Growth Regulators on Growth and Quality of Spring Tea Shoots
摘要
Abstract
The research aimed to explore the effects of different types of plant growth regulators and their concentration differences on the growth of spring tea shoots and tea quality,in order to provide theoretical support for high-quality and efficient spring tea production in Taishan tea area.With'Yujinxiang'tea as test material,the changes and differences of chlorophyll content,leaf area,shoot length,100-bud weight,bud density,unit yield and quality indexes of tea leaves were investigated and analyzed by different concentrations of gibberellin and Bihu growth regulator in the early stage of spring tea germination.The results showed that the effects of different plant growth regulators on the growth and quality of spring tea shoots were different.(1)Under the treatment of high concentration(75 mg/L)of gibberellin,the chlorophyll content was the highest,and the shoot length,leaf area,100-bud weight and bud density were the most significant,but the contents of caffeine,total ash and tea polyphenols were also relatively high.(2)The effects of medium and low concentration(50,25 mg/L)of gibberellin on the growth and quality indexes of tea shoots were lower than those of high concentration gibberellin treatment.(3)Under the treatment of plant growth regulator Bihu,which is frequently used in current production,it had a significant promoting effect on shoot length and leaf area,but it had a certain reducing effect on 100-bud weight and bud density.At the same time,it could promote the content of free amino acids and tea polyphenols,and reduce the content of caffeine and total ash,and the quality index was better.In the process of tea production,although the selection of gibberellin can increase the yield,it is not conducive to maintaining the quality of tea,while Bihu is conducive to the formation of tea quality,but it has little effect on increasing the yield.Therefore,in order to obtain high-quality and high-yield tea products,spraying plant growth regulators cannot be used as a single adjustment method.关键词
植物生长调节剂/春茶/新梢/产量/品质/泰山茶区/赤霉素/碧护/茶叶品质Key words
plant growth regulator/spring tea/new shoot/yield/Taishan tea area/gibberellin/Bihu/tea quality分类
农业科技引用本文复制引用
肖文敏,任志红,吴焕焕,张虹,孙海伟,杨圣祥,李龙,尚涛..植物生长调节剂对春茶新梢生长及品质的影响[J].农学学报,2024,14(11):7-12,6.基金项目
山东省农业良种工程项目"优质高产抗逆茶树突破性新品种选育"(2020LZGC010) （2020LZGC010）
山东省2017年度农业重大应用技术创新项目"泰山茶提质增效创新关键技术研究与集成示范" （）
山东省茶叶产业技术体系建设任务"泰安综合试验站"(SDAIT-19-09) （SDAIT-19-09）
泰安市科技创新发展项目"茶园病虫害'菜单式'防治策略研究"(2020NS069) （2020NS069）
泰安市科技特派员科技项目"生态有机概念下的泰山茶栽培技术示范与推广"(2021TPY036) （2021TPY036）
山东省农业重大技术协同推广计划"生态茶园技术体系集成创新与示范推广"(SDNYXTTG-2023-22). （SDNYXTTG-2023-22）
