湖南农业大学学报（自然科学版）2017，Vol.43Issue(6)：630-634,5.DOI:10.13331/j.cnki.jhau.2017.06.010
变黄期失水胁迫对烤烟上部叶生理和物理特性的影响
Effects of dehydration in yellowing stage on physiological and physical properties of tobacco upper leaves during curing
摘要
Abstract
The upper leaf of K326 was used as test material, and subjected to curing by an electric heating flue-cured tobacco oven. The tobacco leaves were treated by dehydration (15%-20%) during the early yellowing stage (0-20 h) and the middle yellowing stage (20-44 h) to study the changes of moisture content, starch metabolism, cell wall material and physical properties of tobacco leaves. The results showed that the drying rate of tobacco leaves with dehydration decreased 30%-45% compared to the control. The level of amylase activity in tobacco leaves with dehydration at yellowing early stage was higher, and starch content in these tobacco leaves decreased 31% and cellulose content decreased 30% compared with the control treatment. While, there was no significant difference between the treatment of tobacco leaves with dehydration in the middle yellowing stage and control treatment. Horizontal shrinkage, vertical shrinkage, horizontal rolling index and vertical rolling index of flue-cured tobacco leaves with dehydration in the yellowing early stage were significantly larger compared to the control treatment. In addition, the equilibrium moisture content, tension and filling value of flue-cured tobacco leaves with dehydration in the yellowing early stage were better than those of the control treatment.关键词
烤烟/上部烟叶/变黄期/失水处理/生理/物理特性Key words
flue-cured tobacco/tobacco upper leaves/yellowing stage/dehydration treatment/physiological/physical property分类
农业科技引用本文复制引用
魏硕,黄克久,汪代斌,陈少鹏,汪真增,郭保银,江厚龙,杨超,宋朝鹏..变黄期失水胁迫对烤烟上部叶生理和物理特性的影响[J].湖南农业大学学报（自然科学版）,2017,43(6):630-634,5.基金项目
中国烟草总公司重庆市公司项目(NY20150601070011) （NY20150601070011）
