PJB-2020-692
Effects of hormones (IBA & IAA) on the propagation of Himalayan yew in Pakistan: a conservation approach
Javaid Iqbal, Bushra Khan, Sardar Khan, Nasreen Ghaffar, Ishaq Ahmad Mian, Iqbal Ahmed, Nowsher Yousaf, Aamir Iqbal, Iftikhar Ahmad and Sadaf Manzoor
Abstract
Himalayan yew (Taxus wallichiana) is one of the most important medicinal plant species for cancer treatment. The tree contains anticancer drug ‘Taxol’ which is mainly used for the treatment of ovarian, breast, and AIDS-related cancers. However, Himalayan yew is an endangered tree species and requires high conservation attention due to declining population. This study was therefore conducted for the propagation of Himalayan yew by the regeneration of fresh stem cuttings using hormone treatments of Indole Butyric acid (IBA) and Indole acetic acid (IAA) at 2000 to 7000 ppm concentrations. A total of 3840 stem cuttings were treated with IBA and IAA and grown in polythene bags containing soil at Lalku valley, Swat, Khyber Pakhtunkhwa (KP), Pakistan. The influence of IBA treatment at 7000 ppm concentration showed survival of 85.22% (average number of roots=10.4, average length of roots=15.5 cm, average number of leaves=92.4 and average number of sprouts=3.3) while IAA showed survival of 81.11% (average number of roots=9.1, average length of roots=14.6 cm, average number of leaves=84.0 and average number of sprout=3.0) at the same concentration. The lowest survival of 40-45 % (average number of roots=4.2, average length of roots=8.0 cm, average number of leaves=32.2, average number of sprouts=1.7) was observed for the control stem cuttings. This study recommends the application of IBA (7000 ppm) as a better hormone for the conservation and propagation of Himalayan yew.
To Cite this article:
Iqbal, J., B. Khan, S. Khan, N. Ghaffar, I.A. Mian, I. Ahmed, N. Yousaf, A. Iqbal, I. Ahmad and S. Manzoor. 2022. Effects of hormones (IBA & IAA) on the propagation of Himalayan yew in Pakistan: a conservation approach. Pak. J. Bot., 54(4): DOI: http://dx.doi.org/10.30848/PJB2022-4(41)
Download
