烟草科技2018，Vol.51Issue(5)：32-38,7.
富钾基因型烤烟叶片钾含量的动态变化
Dynamic variation of potassium content in leaves of flue-cured tobacco of rich-potassium genotype
摘要
Abstract
To investigate the dynamic variation of potassium content in flue-cured tobacco leaves, experiments were carried out with six tobacco cultivars (ND202, NC628, NC628×ND202, G28, Yizhong90 and Yunyan12) of different genotypes. The variations of K content in flue-cured tobacco leaves at the entire growth and development stages and the differences in dry-matter accumulation between different genotypes were analyzed. The results showed that in general, the K contents in flue-cured tobacco leaves slowly decreased during the growth and development stages. However, there were two rapid decrease periods at the fast growing stage and after topping separately, and a slightly increase period at the technical mature stage. Comparing with its parents, there was a delay in the K content increase and K accumulation rate reduction in tobacco leaves of F1 generation, which had a stronger growth potential and harmonious chemical components after flue-curing. Therefore, hybridization could be considered as an effective way to promote K content in flue-cured tobacco leaves.关键词
烤烟/基因型/钾含量/杂交/遗传改良Key words
Flue-cured tobacco/Genotype/Potassium content/Hybridization/Genetic modification分类
农业科技引用本文复制引用
何冰,黄银甫,李建华,和梦颖,符新妍,王唯唯,万涛,杨铁钊..富钾基因型烤烟叶片钾含量的动态变化[J].烟草科技,2018,51(5):32-38,7.基金项目
河南省烟草公司科技项目"豫烟系列新品种配套技术集成与应用推广"(HYKJZD201401). （HYKJZD201401）
