中国烟草学报2011，Vol.17Issue(6)：37-42,6.DOI:10.3969/j.issn.1004-5708.2011.06.008
断根、环割处理对烤烟内源激素水平及钾积累的影响
Effects of root-cutting and girdling on endogenous hormone level and potassium accumulation in flue-cured tobacco
摘要
Abstract
Solution culture experiment was conducted to study endogenous hormone level and its relation to potassium accumulation after root-cutting, girding, and root-cutting with girding. Results showed that root-cutting and girding reduced the IAA, GA3 content in tobacco leaves and GA3/ABA in bleeding sap. Significantly (1% or 5% ) positive correlation between potassium accumulation in root and IAA content in root and leaves existed. Potassium accumulation of unit time in bleeding sap showed significantly negative correlation with GA3 content in leaves and GA3/ABA in bleeding sap. Potassium accumulation in leaves showed significantly positive correlation with the GA3 content in root and significantly negative correlation with the GA3/ABA in bleeding sap. Results also showed that root-cutting and girding may regulate potassium in root upward translocation through bleeding sap to increase potassium accumulation in leaves by translating endogenous hormone in root, bleeding sap, and leaves. Root-cutting with girding treatment showed the best effect in increasing potassium accumulation.关键词
烤烟/断根/环割/内源激素/钾积累Key words
flue-cured tobacco/root -cutting/girding/endogenous hormones/potassium accumulation分类
农业科技引用本文复制引用
沈方科,何明雄,黄芩芬,唐新莲,尹永强,廖曼玲,张坚超,顾明华..断根、环割处理对烤烟内源激素水平及钾积累的影响[J].中国烟草学报,2011,17(6):37-42,6.基金项目
广西壮族自治区烟草专卖局项目资助 （）
广西大学科研基金项目资助(x 071057) （x 071057）
广西研究生教育创新计划资助(2008105930903 M012) （2008105930903 M012）
