Observations on the Effect of Copper on Growth Performance, Dry Matter Production and Photosynthetic Pigments of Ludwigia perennis L.

Effects of various concentrations of copper were studied on growth performance, dry matter production and photosynthetic pigments of Ludwigia perennis L. The growth of the plant showed significant negative correlation with increase in concentration of copper. Higher concentrations of copper caused maximum reduction of shoot and ischolar_main dry weight over the control plants. The reduction in dry weight of ischolar_main was higher than the shoot. The photosynthetic pigments also showed reduction with increasing concentration of copper.