变黄期不同稳温时间对云烟105品质和经济效益的影响

Effects of Different Constant-temperature Time at Yellowing Stage on Quality and Economic Benefit of Tobacco Variety Yunyan 105

针对云烟105烤烟品种的3个部位烟叶,研究了变黄期不同调制技术参数设置对烟叶品质和经济效益的影响。结果表明:对于下部烟叶来说,变黄期干球38℃、湿球36℃稳温18 h,干球42℃、湿球37℃稳温10 h处理能提高烟叶综合品质,并比对照提高5.45%;中部烟叶变黄期干球38℃、湿球36℃稳温24 h,干球42℃、湿球37℃稳温14 h处理的烟叶综合品质较对照提高4.35%;上部烟叶变黄期干球38℃、湿球36℃稳温30 h,干球42℃、湿球37℃稳温10h处理的烟叶综合品质较对照提高9.87%。在以上处理条件下,烟叶能获得较好的经济效益,产值较对照平均增加6.26%。由此可知,宣威烟区云烟105下部烟叶变黄期关键温度点的最佳参数为:干球温度38℃和42℃分别稳温18 h和10 h;中部烟叶最佳参数:干球温度38℃和42℃分别稳温24 h和14 h;上部烟叶的最佳参数:干球温度38℃和42℃分别稳温30 h和10 h。

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 enhance 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 better,and its average output value was 6.26%higher than that of CK.