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.

An investigation was carried out to study the effect of different levels of single super phosphate on growth and yield of rose grown in soil media under polyhouse conditions. The treatments comprised of application of two levels and two methods of single super phosphate with application of monocalcium phosphate as a control treatment. The application of 18 g single super phosphate in two equal splits (basal and 50 days after planting) significantly increased growth with respect to number of leaves (32.5 per plant), number of branches (3.75 per plant), plant height (49.7 cm), number of flowers (3.75 per plant) and least number of days required for flowering (8.56) from bud initiation. Significantly higher yield of rose and nutrient uptake was observed in the same treatment. The significant increase in fresh and dry weight of flower (24.98, 5.5. g, respectively) were reported in same treatment. The treatment of 18 g single super phosphate in two equal splits also recorded significantly higher total uptake of macro and micronutrients by rose over other treatments of single super phosphate and monoammonium phosphate (Control).