Department of Horticulture, Narendra Deva University of Agriculture and Technology, Faizabad 224 229
*Scientist (Horticulture), Division of Plant Sciences, CSWCRTI, 218, Kaulagarh Road, Dehra Dun 248 195.
The investigation was carried out to study the rooting potentiality and establishment of rooted shoots of Psidium species propagated through stooling. Treatment of shoots with combined application of IBA + NAA (7,500 ppm) induced profuse rooting (90–100%) in Psidium cujavillis, P. chinensis, P. molle and P. cattleianum with a high degree of establishment (82–99%) of rooted shoots under field conditions. Whereas in Psidium friedrichsthalianum very shy rooting was obtained with the same treatment and the field establishment was absolutely nil. This treatment also induced maximum number of roots/shoot in almost all the species. However, longer roots were recorded at lower conentration (5,000 ppm) of either IBA alone or in combination with NAA. Further increase in concentration (10,000 ppm) had adverse effect on rooting potentiality and the subsequent establishment of rooted shoots under field conditions.
