Effect of spraying with different concentrations of Zinc and Manganese on seedling  growth of pomegranate (Punica granatum L.) var. Salimi

	Effect of spraying with different concentrations of Zinc and Manganese on seedling growth of pomegranate (Punica granatum L.) var. Salimi
journal of kerbala university
Article 1, Volume 13, Issue 4, 2017, Pages 335-345 PDF (0 K)
Abstract
An experiment was conducted in Agriculture college of Kerbala university in lath house at10 days interval from the first of March to the end of June during growing season of 2014 to study the effect of different concentrations of zinc and manganese on seedling growth of pomegranate var. Salimi. Three replicates were used for each treatment. Zinc was used at three levels (0, 100, 200) mg/L. and three levels of Manganese (0, 50,100) mg/L were used. The seedlings were sprayed three times at10 days interval starting from 1/3/2014,and they were irrigated one day before spraying time. An experiment was conducted according to the Randomized complete Block Design (R.C.B.D.) and analysis of variance ANOVA was based on the least significant difference L.S.D. 0.05. All measurements were taken at the end of June Results showed that: 1- The concentration 200 mg/L of Zinc treatment significantly surpassed all other concentration in all studied characters (height of seedling , stem diameter , branches, number of branches, number of leaves, leaves area , chlorophyll content in leaves , Zinc concentration in leaves , manganese concentration in leaves , root length and dry weight of root system), which gave (124.45 cm/seedling) (7.22 mm, 7.44 branch /seedling, 345.89 leaf/ seedling , 2861.37 cm2/seedling , 43.26 SPAD, 45.17 mg/L, 91.94 mg/L, 41.67 cm/seedling and 18.10 gm/seedling respectively. 2- Manganese treatment at 100 mg/L was significantly higher than all other concentrations in all studied growth characters (height of seedling, stem diameter, number of branches , number of leaves, leaves area , chlorophyll content in leaves, Zinc concentration in leaves , manganese concentration in leaves , root length and dry weight of root system) which gave (119.89 cm/seedling, 6.41 mm, 5.89 branch/ seedling , 341.67 leaf /seedling , 2509.97 cm2/seedling , 40.94 SPAD , 43.66 mg/L, 89.53 mg/L, 36.89 cm/seedling and 15.94 gm/seeding respectively. 3- The interaction between zinc and manganese had significant effect on the Number of branches, Zinc concentration in leaves, Manganese concentration in leaves, root length and dry weight of root system . The interaction of 200 mg/L of zinc and 100 mg/L of manganese gave (9.00 branch/seedling, 48.51 mg/L, 97.40 mg/L, 47.67 cm/seedling and 20.29 gm/seedling) respectively.

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