Effects of nitrogen level and planting density on chemical properties in Korean native tobacco varieties
1989
Jeong, H.J. (Andong National Univ., Andong (Korea Republic). Dept. of Biology) | Kim, K.U. (Kyungpook National Univ., Taegu (Korea Republic). Coll. of Agriculture) | Park, S.J. (Korea Ginseng and Tobacco Research Inst., Taegu (Korea Republic). Taegu Experiment Station)
This study was conducted to establish the most appropriate nitrogen levels and planting densities which can attribute to increase of aromatic substances in tobacco variety, Hyangcho, maintaining its original aroma. An increase of nitrogen fertilization from 3 to 12 Kg per 10a increased total alkaloid content 2.0 % to 3.3 %, while an increased nitrogen fertilization decreased the contents of total sugar, starch, fatty acid etc., which seem to be the positive components relating to tobacco aroma the contents of alkaloids were decreased and total fatty acids were increaed as the planting densities increased. The higher contents of 2.3-methylbutanoic and 3-methylpentanoic acids was obtained at the density of 3 plant per pit (12,498 plant/10a). The components determined in the neutral fraction such as solanone, furfural, furfurylalcohol and benzyl alcohol were presented in higher amount at the higher densities. The volatile acids such as 2.3-methylbutanoic acid 3-methylpentanoic acid decreased and also the contents of butanol, furfutal, furfurylalcohol, hexanol, cinnamil, acetophenone, benzyl acetate and solanone etc., were decreased as the nitrogen level increased from 3 to 12 Kg per 10a
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