Micropropagation of Eucalyptus maculata from Mature Stock by tissue culture

Due to Eucalyptuspotential as a fast growing species, its utilization for afforestation and industrial and medical purposes is very important. E. maculata Hook. is an important species among the other eucalypts in respect to some chemical components production and medical utilization. Sexual and asexual propagation of this species is difficult, for this reason the trial was conducted to investigate its propagation by tissue culture, using micro mature stocks. The produced explants from the mature stocks, were placed on MS medium (Murashige and Skooge) treated by ½ nitrate and various growth regulators such as Kin (Kinetin), BAP (Benzylamino purine), IBA (Indole-3-acetic acid), 2ip (2-Isopentyladenine), TDZ (Tidiazorun) and NAA (Naphtalen Acetic Acid) at different levels of concentration. After two months, growth indexes, including shoot number, shoot height, root number, root length, bud number and greenness rate were measured and recorded. Results showed that the best shooting treatment was IBA (0.01 mgl-1), BAP (0.3 mgl-1) and 2ip (0.5 mgl-1), in which average shoot number, shoot height and greenness rate were 4.63, 2.73 cm and 3.75, respectively, whereas the best rooting treatment was NAA (0.5 mgl-1) plus IBA (0.5 mgl-1), in which root length was 0.2 cm. Finally, the micropropagated plantlets were transferred to greenhouse to pass their adaptation process

Factors Affecting the Successful Realisation of Benefits from Systems Development Projects: Findings from Three Case Studies

This article was published in the Journal of Information Technology [© Palgrave Macmillan] and the definitive version is available at: http://dx/doi.org/10.1057/jit.2011.8The return that organisations derive from investments in information systems and technology continues to disappoint. While there is a very significant body of literature on the factors that should facilitate a successful outcome from systems development, there is growing concern that these prescriptions are not having their desired effect. In this paper, we argue that the success of a systems development project should be measured in terms of its ability to deliver meaningful benefits, rather than the timely delivery of a technical artefact, and therefore organisations should adopt an explicit and proactive benefits realisation approach when investing in IT. Consequently, we sought to explore those actionable factors that might facilitate the effective realisation of benefits from systems development initiatives. Three organisations were identified that claimed to adopt a proactive approach to benefits realisation, and detailed studies of their systems development practices were conducted. Our analysis found that whilst one organisation had been successful in its adoption of a benefits realisation perspective, the other two had not, and this allowed us to identify those factors that helped to explain this difference in outcomes. In short, this paper makes an important contribution by identifying how a sub-set of traditional systems success factors might be enhanced, to give them a more explicit benefits realisation orientation. Moreover, it presents a coherent set of principles that can be used for deriving other factors and practices