Indian Journal of Plant Physiology
  • Year: 2009
  • Volume: 14
  • Issue: 1

Rootingand growth response of rhizome cuttings of Picrorhiza kurrooa to NAA, IBA and Rootex

  • Author:
  • M.A.A. Siddique1,, A. Anjum1, F.U. Khan1, F.A. Khan1,2
  • Total Page Count: 6
  • Page Number: 93 to 98

1Division of Floriculture, Medicinal and Aromatic Plants, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Shalimar Campus-191 121, Srinagar (Jammu and Kashmir).

2Division of Post Harvest Technology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Shalimar Campus-191 121, Srinagar (Jammu and Kashmir).

*Corresponding author, E-mail: yagaous@gmail.com

Abstract

The present study was conducted to standardize the propagation protocol for Picrorhiza kurrooa Royle ex-Benth during the year 2005–06 in completely randomized design with 8 treatments and 3 replications. Rhizome cuttings of 3–4 cm length were treated with three concentrations each of NAA and IBA (1000, 2000 and 3000 ppm) and a commercial rooting powder, “rootex” following the quick dip method. In general, response of treatments was of the order: IBA > NAA > rootex > control. IBA 1000 ppm resulted in minimum number of days taken to root emergence (29.33 day) as well as emergence of leaves (32.80 day). Days taken to root and leaf emergence (40.66 and 37.33 day) in rootex treated cuttings were statistically at par with control (42.33 and 39.66 day). IBA 1000 ppm also produced maximum rooted cuttings (81.3%), number (8.21) and length of roots (8.5 cm) and number of leaves (9.20) with maximum field survival (70.5%) of rooted cuttings as against the minimum rooted cuttings (50.25%), number (3.1) and length of roots (3.3 cm) and number of leaves (4.8) with minimum field survival (40.83%) under untreated cuttings.

Keywords

IBA, NAA, Picrorhiza kurrooa, rootex, rooting