【摘要】 采用水培试验方法,研究了不同铁营养水平下(0.00、0.56、1.12、1.68、3.36、4.48mg/L),烟草幼苗生长及其外渗电导率、可溶性糖含量、可溶性蛋白含量、游离脯氨酸含量、丙二醛含量和根系活力的关系。结果表明:铁浓度为1.68mg/L处理后的烟草幼苗生长状况较好,株高,根冠比均明显好于其它铁离子处理;抗性生理指标外渗电导率、游离脯氨酸含量及丙二醛含量均低于供试的其它铁离子处理,而可溶性糖、可溶性蛋白含量及根系活力均高于供试的其它铁离子处理。更多还原

【Abstract】 The relationship between Election Conductivity value and the contents of Soluble Sugar, Soluble Protein, Free Praline, MDA and Root Vigor in tobacco seedling under different Iron nutrition levels (0.00?0.56?1.12?1.68?3.36?4.48mg/L) using liquid culture was evaluated. The results showed that under Fe 1.68mg/L treatments, the plant height and root/shoot value of tobacco leaves were better than those of the other treatments; but the Election Conductivity content, Free Praline, and MDA content were lower, while Soluble Sugar, Soluble Protein, Root vigor of tobacco were higher than those of the other treatments.更多还原