Interactive study of spacing and different levels of nutrients on flowering and yield attributes of crossandra (Crossandra undulaefolia Salisb.)

A field experiment was conducted during kharif season of 2014-15 at Kittur Rani Channamma College of Horticulture Arabhavi to study the effect of spacing and different levels of nutrients on flowering and yield attributes of Crossandra genotype ACC-1 (Arabhavi Crossandra Collection-1). Days taken to spike initiation, days taken to first harvest, number of flowers/spike, number of spikes/plant, 100 flower weight, flower yield/plant and yield of flowers per hectare were found significant due to treatment interactions. Minimum days taken to spike initiation, days to first harvest, higher number of flowers/spike, spikes/plant, maximum flower yield/plant and yield/hectare was observed with the closer spacing of 60 x 30 cm along with fertilizer dose of 75:45:45 kg NPK + 18.75 t FYM + 5 t Vermicompost/ha and 100 flower weight was found higher with the treatment of 50:30:30 kg NPK + 12.50 t FYM + 2 t Vermicompost/ha.