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Universiti Putra (2015)

Micropropagation of selected improved materials from Eucalyptus camaldulensis Dehn. for paper production in Erbil, Iraq

Qader, Nozad Ali

Titre : Micropropagation of selected improved materials from Eucalyptus camaldulensis Dehn. for paper production in Erbil, Iraq

Auteur : Qader, Nozad Ali

Université de soutenance : Universiti Putra

Grade : Master of Science (MS) 2015

Résumé partiel
Eucalyptus camaldulensis is one of the most popular multipurpose tree species that had been widely planted in Iraq. Eucalyptus plantations are established in Iraq for many purposes including pulp and paper industry. Generally, industrials harvest these trees at 10-12 years old for paper productions. Since the high demand of its pulp and paper increases yearly, the first part of this study was conducted to find out the possibility of shorten rotation cycle from 10-12 years to 5 years, and to conduct plus tree selection as improved material for micropropagation. However, this was followed by developing micropropagation protocol using material selected from the first part using shoot tips and nodal segments for mass production. In the first part, improved materials were screened through the use of source base on plus tree selection in the field based on good properties. Sixty E. camaldulensis trees (thirty from ten-year-old and thirty from five-year-old stand) were randomly selected through stratified sampling from two plantations in Erbil, northern Iraq. The trees were selected based on the growth performance of both qualitative and quantitative characteristics for fibre morphology and quality parameters. In the phase of property selection, sixteen trees with good ranking scores based on growth performance and fibre morphology were selected from these sources. In the final phase, the selected trees were re-examined according to growth performance, fibre morphology, and cumulative characteristics. As a result, four trees (two 5-year-old trees and two 10- year-old trees) with the highest score were chosen as the sources for micropropagation. In the second part of this study for the micropropagation protocol, surface sterilization protocol of the seeds was established

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