Effects of Different Constant-temperature Time at Yellowing Stage on Quality and Economic Benefit of Tobacco Variety Yunyan 105
The effects of different constant-temperature time at yellowing stage on the quality and economic benefit of flue-cured tobacco variety Yunyan 105 were studied through a baking experiment for three-part tobacco leaves. The results showed that: for the lower tobacco leaves,the treatment of constant dry-bulb temperature 38℃ and constant wet-bulb temperature 36℃for 18 h plus constant dry-bulb temperature 42℃ and constant wet-bulb temperature 37℃ for 10 h at yellowing stage could en-hance the integrated quality of flue-cured tobacco leaves by 5.45% as compared with the control(CK); for the middle tobacco leaves, the treatment of constant dry-bulb temperature 38℃ and constant wet-bulb temperature 36℃ for 24 h plus constant dry-bulb temperature 42 ℃ and constant wet-bulb temperature 37℃ for 14 h at yellowing stage could increase the integrated quality of flue-cured tobacco leaves by 4.35% as compared with CK; for the upper tobacco leaves, the treatment of constant dry-bulb temperature 38℃ and constant wet-bulb temperature 36℃ for 30 h plus constant dry-bulb temperature 42℃ and constant wet-bulb temperature 37 ℃ for 10 h at yellowing stage could improve the integrated quality of flue-cured tobacco leaves by 9.87% in comparison with CK. Under the above optimum treatment conditions, the economic benefit of flue-cured tobacco leaves was bet-ter, and its average output value was 6.26% higher than that of CK.
国家科技期刊平台
NSTL
万方数据
维普
