Effect of potting medium on Cymbidium Species

An experiment was conducted to find out the effect various tree bark (pine, oak and Rhododendron) as a component of potting mixture on flowering size plants of five species of Cymbidium (C. eburneum, C.lancifolium, C. elegans, C. mastersii, and C. iriodiodes), at floriculture section of VCSG College of Horticulture, Bharsar, Pauri Garhwal during 2006–2011. The results showed significant improvement in number of shoots/pot, height of plants at the time of flowering, plant's fresh weight and dry weight, number and length of leaves of new leaves at six month and at flower emergence in all species on pine bark potting mixture. In all species, number, length, girth, fresh weight and dry weight of pseudo bulb, number of roots/clump, length of roots, fresh and dry weight of roots of plants were maximum in oak bark potting mixture. Plants grown in pine bark potting mixture produced maximum number of spike/plants and spike/clump.