Studies on Plant Density and Nutrient Levels on Growth and Yield of Rose cv. Charisma

The present investigation was conducted at Regional Horticultural Research and Extension Centre, UHS (Campus), GKVK, Bangalore during 2011–12 to standardize the spacing and nutrition for rose cv. Charisma. The experiment was replicated thrice with two factorial randomized complete block design with 12 treatment combinations comprising of three different plant density viz., S₁ (0.75 x 0.75 m), S₂ (1.50 × 1.00 m) and S₃ (1.80 × 1.00 m) and four levels of nutrient viz., N₁ (20:20:30 g NPK/plant), N₂ (30:30:45 g NPK/plant), N₃ (40:40:60 g NPK/plant) and N₄ (50:50:75 g NPK/plant). It was found that plant density S₂ (1.50 × 1.00 m) and application of nutrient levels N₂ (30:30:45 g NPK/plant) showed superiority in the growth and yield attributes viz., maximum plant height (70.57 cm), maximum number of flowers per plant (123.78) and highest yield per plant (0.83 kg). While, plant density S₁ (0.75 × 0.75 m) and nutrient levels N₁ (20:20:30 g NPK/plant) was noticed minimum plant height (50.73 cm), lowest number of flowers per plant (85.92) and minimum yield per plant (0.39 kg). While, plant density S₁ (0.75 × 0.75 m) and nutrient levels N₄ (50:50:75 g NPK/plant) was recorded maximum yield per hectare (10.83) and it was minimum (2.74) in S₃ (1.80 × 1.00 m) and N₁ (20:20:30 g NPK/plant).