ABSTRACT:Iron, added as (Fe‐EDTA)‐, was found stimulatory toV. spiralisat a concentration of 0.05 ppm. (Fe‐EDTA)‐had no effect upon growth ofV. neotropicalisas measured by changes in dissolved oxygen and dry weight. Results are compared with those derived from similar studies withHydrilla verticillataandEgeria densa. The implications of lake drawdown and aeration are di
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机译：摘要： 铁，添加为 （Fe-EDTA）‐，被发现对 V 有刺激作用。Spiralisat浓度为0.05 ppm。（Fe-EDTA）-对V的生长没有影响。通过溶解氧和干重的变化来测量新热带。将结果与类似研究得出的结果进行比较 Hydrilla verticillata和Egeria densa.湖泊抽水和曝气的影响是
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