Effects of mother tree ages, different rooting mediums, light conditions and auxin treatments on rooting behaviour of Dalbergia sissoo branch cuttings

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 Foundation project:

Incidence of dieback disease following fungal inoculations of sexually and asexually propagated shisham (Dalbergia sissoo)

“…Previously, Singh et al (2011) expressed the opinion that seedderived plants are more susceptible to dieback disease compared to vegetatively propagated plants. In seedlings, F. solani produced maximum disease incidence (46.08%) followed by B. theobromae (24.22%), whereas in cuttings, F. solani caused a maximum disease incidence of 16.61% and B. theobromae a 13.85% incidence.…”

“…Vigayan and Rehill (1990) found a reduction in seed germination and vigour of germinants of shisham when cultured with various fungal pathogens, including F. oxysporum, F. solani and Aspergillus niger. In the South Asian Subcontinent, the majority of the seed-derived plantations of shisham are facing severe threats because of the dieback disease; however, vegetative propagation through branch cuttings was shown to reduce damage from dieback disease (Singh et al 2011). Rajput et al (2010) identified 10 fungi from the different parts of shisham trees and by inoculation observed that F. solani caused the maximum infection (75%) as compared to other fungi that were isolated at a very low frequency.…”

“…Shisham (Dalbergia sissoo) is a multipurpose tree species of South Asia (Singh et al 2011) with great economic importance and considered to be native of Tarai belt situated in subtropical and temperate foothills in Nepal . It is also found in the cultivated tracts of tropical and subtropical regions of Africa, Asia, Kenya, Maustius, Nigeria, Palestine, South Africa, Sri Lanka and Zimbabwe (Tewari 1994).…”

Effect of NAA and IAA on Stem Cuttings of Dalbergia Sissoo (Roxb)

“…The present investigation reveals that length of cuttings significantly (p < 0.05) affected the rooting of D. sissoo stem cuttings. The 25-and 30-cm-long cuttings gave the best performance in terms of rooting as well as in other parameters studied (Puri S, Verma R C. 1996. And Singh, et al, 2011.…”

Propagación de Dalbergia congestiflora (Fabaceae) por estaca: efecto de la concentración de AIB y la posición de la estaca

“…El porcentaje de enrizado varía entre 25 y 66 % a 100 ppm de ácido indolbutírico (AIB) (Uniyal et al 1993, Puri y Verma 1996, Singh et al, 2011 y una reducción del enraizado se reportó con dosis entre 500 y 1000 ppm de la misma auxina (Uniyal et al 1993, Puri y Verma 1996. En relación a la especie, en enraizado de estacas de D. sericea se reportó entre 3 y 53 % (Uniyal et al 1993), para D. sissoo se reportó un enraizado de 20 y 66 % (Puri y Verma 1996, Husen 2008, Singh et al 2011) y en D. melanoxylon el enraizado fue de entre 2 y 47 % (Amri et al 2010). Por último, las estacas de la parte media y basal presentan mayor enraizamiento respecto a las estacas de la parte apical (Puri y Verma 1996, Amri et al 2010.…”