Studies on Rhizogenesis of Some Commercial Cut Flower Cultivars of Rose through Stem Cuttings

The present investigations were carried out at the Research Farm of Division of Floriculture, Medicinal and Aromatic Plants, SKUAST-Kashmir Shalimar Campus, Srinagar during the year 2010. The experiment was laid out in factorial completely randomized design replicated thrice (ten cuttings/replication). One experiments were conducted to evaluate the performance of different growing medium (Sand, sand 85% + manure 15%, sand 70% + manure 30%, sand 70% + manure 15% + soil 15%, sand 85% + soil 15%) on the rooting characteristics of some commercial cut flowers of rose. In the experiment, significant influence of growing media was observed on the improvement of rooting in all the four commercial cut flower cultivars of rose. Growing medium M₃ (sand 70% + manure 30%) recorded maximum (95.00%), rooting (72.50%), primary root number (8.26), root length (4.62 cm), new leaf growth (33.18%) and field survival (74.91%). Second best medium was M₂ (sand 85% + manure 15%) while M₅ medium (sand 70% + soil 15% + manure 15%) yielded poor results. M₁ (sand 100%) took minimum days (23.12) to root initiation. Among the genotypes, Naranga recorded maximum rooting (70.00%), primary root number (7.38) and new leaf growth (32.71%). First Red recorded maximum root length (3.91 cm) and field survival (77.06%) while Noblesse took minimum number of days (21.92) to root initiation.