Gerbera is one of the commercial cut flowers, widely cultivated under low cost protected structures. Due to its continuous feeding habit, it suffers from many deficiency disorders in the green houses. Hence, the present investigation was carried out to know the influence of nutrient deficiencies on growth and nutrient uptake of Gerbera var. Savannah through solution culture. Plants were treated with complete modified Hoagland solution and deficiencies were incorporated with a complete nutrient formula minus one of the nutrient. Nitrogen deficiency significantly influenced the growth parameters and resulted in reduced plant height, leaf number plant-1 , leaf area, root length, dry weight of shoot and root & shoot/root ratio. Besides, minimum SLW and maximum SLA were recorded. Plants grown in complete nutrient solution recorded maximum values for most growth parameters. However, SLA was lower in plants grown in complete nutrient solution, whereas, shoot/root ratio recorded maximum in Fe deficient solution.

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Abstract:The aim of present study was to assess pesticide residues in vegetables in the Pathanamthittadistrict.The concentrations of six pesticides were determined by gas chromatography coupled with mass selective detector (GC-MS)

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