2019
DOI: 10.1590/1678-992x-2017-0157
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Abstract: Yellowing is a key stage in the curing of flue-cured tobacco (Nicotiana tobacum L.) as much of the chemical transformation occurs during this period. This study examined the effect of different yellowing degrees on the value of flue-cured tobacco leaves at the farm level for both processing and manufacturing. The study was conducted in the counties of Chuxiong, Dali, and Yuxi in Yunnan, China over two years. Yellowing treatments have been designed to have either a mild or a regular yellowing degree. Yield, val… Show more

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Cited by 14 publications
(6 citation statements)
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“…Changes of leaf thickness and structure are mainly related to dehydration and inclusion changes. During flue-curing, dehydration of tobacco leaves and inclusion changes mainly occur in the yellowing stage and leaf-drying stage [22]. In this experiment, reduction of leaf thickness is mainly shown in Stages 2 to 5 during flue-curing, that is, the yellowing, and early leaf-dying stages.…”
Section: Discussionmentioning
confidence: 87%
“…Changes of leaf thickness and structure are mainly related to dehydration and inclusion changes. During flue-curing, dehydration of tobacco leaves and inclusion changes mainly occur in the yellowing stage and leaf-drying stage [22]. In this experiment, reduction of leaf thickness is mainly shown in Stages 2 to 5 during flue-curing, that is, the yellowing, and early leaf-dying stages.…”
Section: Discussionmentioning
confidence: 87%
“…For dry-ball temperature set and wet-ball temperature degradation flue-curing procedure, the wet-ball temperature was gradually fell to 32 ℃ from 34 ℃ at third stage and the wet-ball temperature was continuously fell to 33 ℃ from 35 ℃ at fourth stage. As for other stages, the dry-bulb temperature and wet-bulb temperature were stationarity 22 .
Figure 1 Conventional flue-curing procedure (CT) used in the bulk curing barns in Yuxi tobacco-growing area.
…”
Section: Methodsmentioning
confidence: 83%
“…The RFT is an index reflecting flue-curing characteristics of flue-cured tobacco and the characteristics are better when the ratio is 5.5~8.0. When the ratio is lower, it is difficult to turn the leaves yellow during the flue-curing process and sometimes grey speckles appear on the leaves, while when the ratio is higher, it is even more difficult to fix the colour of tobacco leaves during the flue-curing process (Zou et al ., 2019). In the current work, the ratio reached its maximum when no nitrogen fertilizer was applied, indicating that it is more difficult to fix colour in the flue-curing process and that dry matter such as starch and total sugars were largely consumed, leading to a decrease in dry tobacco leaf weight.…”
Section: Discussionmentioning
confidence: 99%