中国农业科技导报2017，Vol.19Issue(3)：90-97,8.DOI:10.13304/j.nykjdb.2016.241
光照强度对成熟期烤烟衰老生理特性的影响
Effects of Light Intensity on Senescence Physiological Characteristics of Flue-cured Tobacco at Mature Stage
摘要
Abstract
In order to study the effect of light intensity on the physiological characteristics of flue cured tobacco and effect of its regulation on the senescence of flue-cured tobacco,this paper carried out experiments by taking flue-cured tobacco Yunyan 87 as material and setting 5 intensity gradient:100％ (T1),85％ (T2),76％ (T3),68％ (T4) and 58％ (T5) natural lights,and investigated the effect of light intensity on photosynthetic pigment,soluble protein and MDA content and changes in SOD,pod,cat antioxidant enzyme activities.The results showed that the contents of chlorophyll a and b increased with the decreased of light intensity,the contents of class carrot element and Chla/b decreased with the light intensity decreasing;while the content of malondialdehyde (MDA) decreased with the decreasing of light intensity,and the content of MDA in T2 treatment was the lowest in mature stage;soluble protein content in the early stage in T2 was the highest.The other treatments decreased with the light intensity decreasing,in the latter stage T5 was the highest.Under full light the antioxidase activity was relatively lower as a whole,but under moderate light (T2 and T3) it was higher.Its activity decreased with light intensity reduction.It indicated that in southern tobacco growing areas such as Fuzhou,76％ ～ 85％ light intensity is suitable for the flue-cured tobacco In maturing stage,and the suitable light intensity for flue-cured tobacco in late maturing stage was even lower.关键词
烤烟/成熟期/光照强度/衰老生理特性Key words
flue-cured tobacco/maturing stage/light intensity/senescence physiological characteristics分类
农业科技引用本文复制引用
赵喆,赵东杰,张蕊,毛亚博,牛路路,周国旺,张志高,李燕,赵铭钦..光照强度对成熟期烤烟衰老生理特性的影响[J].中国农业科技导报,2017,19(3):90-97,8.基金项目
中国烟草总公司江西省公司研究项目(201401006)资助. （201401006）
