Micronutrient contents in leaves of poppy cultivars grown with different boron doses
2011
Öztürk, Özden | Günlü, Hakan | Gezgin, Sait
Poppy (Papaver somniferum L.) requires greater quantities of boron for its metabolic needs than other cultivated species. This study was undertaken to evaluate the effects of five boron doses of 0, 1, 3, 9 and 36 kg B ha⁻¹ (as spray of boric acid, H₃BO₃) in a B-rich calcareous soil (2.84 B mg kg⁻¹) on micronutrient contents in leaves of four poppy cultivars during 2002–2003 growing season. Boron (B), iron (Fe), manganese (Mn), zinc (Zn) and copper (Cu) concentrations were measured in poppy leaves at the stage of flowering. The B concentration in the leaves was highly correlated with boron doses, i.e., the leaf B content increased in accordance with increasing B doses applied to the soil. Fe, Mn, Cu and Zn concentrations in the leaves were not changed by the different B levels, however, leaf Fe, Mn, B and Cu concentrations varied with the cultivars. Among the cultivars, Ankara 94 had the highest Mn (96.71 mg kg⁻¹), Karahisar 96 had the highest Cu (6.21 mg kg⁻¹), Kocatepe 96 had the highest B (73.20 mg kg⁻¹) and Afyon Kalesi 95 had the highest Fe (127.37 mg kg⁻¹) concentrations.
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