期刊论文

Analysis of Chlorine Absorption Kinetics of Flue-cured Tobacco

中文

轧钢

1003-9996

2016

32

28

52-56

本校为第一机构

为揭示烤烟对氯素养分的吸收利用规律,以6个不同氯浓度水平的Hoagland营养液改良配方水培烤烟品种‘K326’和‘湘烟5号’,进行氯吸收动力学特征分析,并比较了烤烟品种、烟株本身的氯素营养状况以及介质中氯养分浓度对烤烟吸收利用氯素的影响.结果表明:(1)中低氯(0～0.8 mmol/L)范围内根系氯吸收速率与氯浓度的关系符合米氏酶动力学模型;(2)中低氯处理下‘湘烟5号’和‘K326’表现出高亲和和较高的吸收速率,说明低水平的氯素环境更有利于烟株对氯的吸收积累;(3)自身含氯量少较含氯量多的烟株具有更大的吸收潜力.

In order to reveal the rules of chlorine absorption and utilization in flue- cured tobacco, ahydroponic experiment was carried out to explore the absorption kinetics of flue- cured tobacco varieties‘K326＇and‘Xiangyan 5＇in Hoagland＇s nutrient solutions with six different chlorine concentration gradients.The effects of flue- cured varieties, chlorine content in tobacco plant and the chlorine concentration in themedium solution were compared. The results showed that（1） at low to moderate chlorine level（0-0.8 mmol/L）,the relationship betwe...