Effects of mother tree ages,different rooting mediums,light conditions and auxin treatments on rooting behaviour of <Emphasis Type="Italic">Dalbergia sissoo</Emphasis> branch cuttings |
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| Authors: | Bhupendra Singh Rajendra Yadav B P Bhatt |
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| Institution: | (1) Department of Applied Biology, Faculty of Applied Natural Sciences, University of Gondar, P. O. Box 196, Gondar, Ethiopia |
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| Abstract: | Dalbergia sissoo Roxb. is one of the promising multipurpose tree species of South Asia. Most of the plantations of D. sissoo from seeds are facing severe threats due to the die-back disease, which ultimately causes death of this potential tree-species
within a few months. Vegetative propagation could avoid the die-back disease. Thirty mother trees of different age-groups
of D. sissoo were selected for evaluating the rooting behaviour of branch cuttings from D. sissoo as influenced by auxins (IAA or IBA at 100, 200, 500 mg·L−1), ages of mother trees (10, 4 and 2 years old) and different environment conditions, i.e., different mediums (soil and sand)
or light conditions (in shade and open condition). The results show that application of IAA and IBA induced more numbers of
cuttings (collected from 10-year-old mother trees) to root compared to control. Branch cuttings of D. sissoo collected from 10-year-old mother trees and planted in soil bed in open conditions had 100.0% of cuttings to root in IAA
(100 mg·L−1) and IBA (200 mg·L−1) treatments. Both rooting medium (Soil and sand) influenced significantly (p<0.05) on rooting response of branch cuttings. Soil medium was found to achieve maximum no. of branch cuttings to root, compared
to sand medium. |
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