光质对烤烟成熟过程中碳水化合物和部分酶活性及其生长的影响

Carbohydrate and Enzyme Activities during the Maturing of Flue-cured Tobacco and Growth Characters with Different Light Quality

以烤烟品种‘K326’为材料,在盆栽条件下研究了不同光质对烤烟成熟过程中碳水化合物和部分酶活性及植株生长状况的影响。结果表明,与对照(中性无色膜处理)相比,红膜处理烟叶转化酶活性下降,淀粉酶活性升高,淀粉和还原糖含量增加;蓝膜处理烟叶转化酶和淀粉酶活性较低,淀粉和总糖含量较高;绿膜处理烟叶转化酶活性增强,淀粉酶活性减弱,淀粉、总糖和还原糖含量降低。植株生长状况表现为红膜处理较好,绿膜最差,对照和蓝膜处理差异不大。研究发现,红膜处理更能改善烟株的生长环境,明显调节烟叶转化酶和淀粉酶活性,促进淀粉和还原糖累积,有利于烟株更好地生长。

Potted flue-cured tobacco variety ‘K326’ was used as experimental material to explore influence of light quality on carbohydrates and activity of some enzymes in the process of maturation and botanical characters.Results showed that compared with CK,invertase activity in leaves decreased under red films treatment,while amylase activity increased,contents of starch and reduced sugar increased;activity of invertase and amylase in leaves were lower under blue film treatment,contents of starch and reduced sugar were higher;and under green film treatment,invertase activity in leaves increased,amylase activity decreased,contents of starch,total sugar,and reduced sugar decreased.The growth status of performance for the red film is better and the worst is green film.There is no difference between CK and blue film.The study found that the red film to better improve the environment for the growth of the tobacco plant,the obvious adjustment the tobacco transfer enzymes and amylase activity for starch and reducing sugar accumulation is conducive to better growth of the tobacco plant.