烟草科技Issue(6)：67-71,5.
水分胁迫对烤烟生理特性和光谱特征的影响
Effects of Water Stress on Physiological and Spectral Characteristics of Flue-cured Tobacco
摘要
Abstract
In order to investigate the physiological response of flue-cured tobacco to different watering conditions, the effects of water stress and water compensation on physiological characters and spectral features of flue-cured tobacco were studied with a pot culture experiment. The results showed that: 1) Under drought stress, chlorophyll and soluble protein in leaves degraded, and the photosynthetic rate and transpiration rate decreased, which resulted in the reduction of dry matter accumulation. The photosynthetic rate and transpiration rate could recover somewhat by rewatering as compensation. 2) Waterlogging also affected the physiological functions of tobacco leaf greatly, which aggravated the membrane lipid peroxidation and was more harmful than drought stress. 3) Both drought and waterlogging increased the reflectivity of visible light from tobacco plants in the region of 460-670 nm while decreased that of near infrared in the region of 780-1050 nm. Therefore, spectral characters can be used as an important means for diagnosing the extent of water stress on flue-cured tobacco.关键词
烤烟/水分胁迫/生理特性/光谱特征Key words
Flue-cured tobacco (Nicotiana tabacum L.)/ Water stress/ Physiological character/ Spectral character分类
农业科技引用本文复制引用
梁太波,王建伟,尹启生,张艳玲,蔡宪杰,李海江,刘阳,张仕祥..水分胁迫对烤烟生理特性和光谱特征的影响[J].烟草科技,2012,(6):67-71,5.基金项目
中国烟草总公司郑州烟草研究院院长科技发展基金项目“烟叶抗氧化代谢特性对土壤水分的响应及调节研究”(112009CA0220) （112009CA0220）
山东省烟草公司科技重大专项“以重点卷烟品牌为导向的山东烟叶质量特征定位及培育研究”(200902). （200902）
