Surplus Fertilization Effect on Photosynthetic Response of Pea to Cd Stress at Different Growth Stages
Irena Januškaitienė, Austra Dikšaitytė
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Vytautas Magnus University, K. Donelaičio 58, Kaunas LT-44248, Lithuania
Pol. J. Environ. Stud. 2014;23(5):1599-1607
Besides being involved in growth and development of plants, the essential macronutrients also affect stress tolerance. The aim of this study was to assess the surplus fertilization effect on photosynthetic parameters and the growth of Cd-treated pea (Pisum sativum L.) plants at different growth stages. Surplus fertilizer norm reduced the negative effect of cadmium on the photosynthetic system of pea at leaf development stage, while at lateral shoots stage their influence was rather different. Fertilization had the largest statistically significant effect on all the investigated parameters while the growth stage of plants was also a strong factor, changing cadmium and plant nutrient interactions.
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