Effects of Malic Acid on Content of Nonvolatile Organic Acids in Flue-cured Tobacco
[Objective] The study was to study the effect of malic acid treatment in different stage on the content and components of nonvolatile organic acids in tobacco leaves.[Method] In the pot test with flue-cured tobacco NC 89 as material, and the pouring root treatments on flue-cured tobacco with 1 L 2 g/kg malic acid solution was taken after the tobacco seedlings were transplanted for 20, 40 and 60 d to study the effect of different treatments on the content and components of nonvolatile organic acids in tobacco leaves. [Result] The content of nonvolatile organic acids in upper and middle leaves was increased when malic acid was applied after the tobacco seedlings were transplanted for 20 d, and that in middle leaves was increased when malic acid was applied after the tobacco seedlings were transplanted for 40 d, but that in middle leaves was decreased when malic acid was applied after the tobacco seedlings were transplanted for 60 d.The content and proportion of binary and tribasic carboxylic acid was increased and that of higher fatty acid was decreased in upper and middle leaves in all treatments. And the earlyer the treatment was, the more obvious the effect was . [Conclusion] The pouring root treatment on flue-cured tobacco with malic acid in early time after the tobacco seedlings were transplanted could improve and increase the quality of tobacco leaves.
国家科技期刊平台
NSTL
万方数据
维普
