The relation of the quality of oriental tobaccos to their chemical constituents, 1. comparison of quality and chemical properties of leaf tobacco produced from different locations and seasons
1988
Ryu, M.H. | Shon, H.J. (Korea Ginseng and Tobacco Research Inst., Taejon (Korea R.)) | Jo, J.S. (Chungnam National Univ., Taejon (Korea R.). Coll. of Agriculture)
Some climatic factors and quality-related chemical properties were compared among conventional late and early transplanting in Korea, and conventional growing in Greece where climate for tobacco growth and quality is quite different from Korea. Precipitations were lowest and sunshine hours were highest for Greece planting. Rainfall was 40% or less and the number of sunshine hours was higher by 20% or more in early transplanting than in conventional late planting during the period from 30 days to 80days after transplanting in Korea. The content of total nitrogen, nicotine, petroleum ether extracts of leaves were much higher in Greece planting than those in Korea planting. The content of volatile organic acids and volatile neutrals were highest with Greece culture, followed by early and late transplanting in Korea. The content of total nitrogen, nicotine, petroleum ether extracts of leaves were much higher in Greece planting than those in Korea planting. The content of volatile organic acids and volatile neutrals were highest with Greece culture, followed by early and late transplanting in Korea. The leaf quality evaluated by price showed the same trends. Ash content and pH level of leaves were considerably lower in early transplanting than late planting. Petroleum ether extracts, volatile organic acids and total nitrogen showed significant positive correlation coefficients with assigned grade price, while ash content showed significant negative correlation coefficients.
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