气雾培供铁浓度对微型种薯光合作用与产量的影响

摘要

Under the aeroponics cultivation experiment of the different levels of Fe, the relative physiological indexes of the potato minituber was tested. The effect of the different concentrations of Fe ion on relative physiological indexes of the potato minituber was analyzed to explore reasonable application of Fe for improving the quality and yield of potato minituber. The results showed that iron content would affect the synthesization of chlorophyll a and b. Protein contents decreased in a certain extent. Photosynthesis and the accumulation of photosynthetic products decreased. The experiment validated that the unsuitable application of Fe reduced the quality and yield of potato minituber. The suitable Fe ion concentration of nutrient solution in cultivation of the potato minituber with aeroponics method in greenhouse was put forward.%在不同供铁水平气雾栽培实验条件下,测试了微型种薯相关生理指标,分析了营养液中不同铁离子浓度对微型种薯的相关生理指标的影响,以期探求合理供铁量以提高微型种薯的品质和产量.结果表明:铁素缺乏与过量都会抑制叶绿素a和b的合成,一定程度上减少蛋白质含量,抑制光合作用,使光合产物的积累减少,供铁不当会降低微型种薯的品质和产量,提出了在温室环境下气雾培法生产马铃薯微型种薯的营养液中适宜铁离子浓度.