EFFECT OF SPACING, EXTENT OF PRUNING, GROWTH HORMONE AND NUTRIENTS ON FLOWER YIELD OF ESSENTIAL OIL BEARING ROSE (ROSA DAMASCENA) IN SUBTROPICAL INDIA

Data from field trial conducted during 1984–86 revealed that normal pruned plants (at 15 cm height from the ground level) increased the flower yield over medium pruned (from centre) and light pruned plants (15 cm from the top of plant). The former resulted into 20.9 and 19.3 per cent higher flower yield over medium and light pruned plants, respectively. Plant spacing (IM²) significantly increased flower yield to the tune of 18.6 and 37.0 per cent than 0.5 and 2.0 M² spacings, respectively. The treatment combination of 100 kg N/ha, 60 kg P₂O₅/ha and spray of Napthelene acetic acid (50 ppm) and agromine (1%) yielded maximum flowers.