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Zinc and Sulfur Effects on Growth and Nutrient Concentrations in Rocket

Author:
Urlić, Branimir, Dumičić, Gvozden, Goreta Ban, Smiljana
Source:
Communications in soil science and plant analysis 2014 v.45 no.13 pp. 1831-1839
ISSN:
1532-2416
Subject:
leaf area, leaves, nitrogen content, nutrient solutions, roots, seedlings, shoots, sulfur, toxicity, zinc
Abstract:
This study was conducted to determine how the range of sulfur (S) supply (from deficient to luxuriant) interacted with possible toxic zinc (Zn) levels. Rocket seedlings were grown for 30 d at three Zn (1, 75, and 150 μ M) and three S (0.03, 0.5, and 1.5 mM) concentrations in nutrient solution under controlled conditions. Plant leaves did not show symptoms of S deficiency or Zn toxicity, which was confirmed by pigment determination. Treatments affected only leaf area and shoot dry-weight percentage. The accumulation of Zn was greater in roots than in shoots and increased linearly with Zn supply. Shoot S concentration was affected by S deficiency, whereas nitrogen concentration was least at the greatest S and Zn concentrations.
Agid:
1223322