In vitro propagation of interspecific hybrids in Alnus
نویسندگان
چکیده
accompanying forest species by nitrogen supply. The genus Alnus includes some fast-growing species adapted to various ecological situations (Martin, 1985). Genetic improvement programs are being developed to produce effective clonal varieties able to grow under various ecological conditions. Controlled hybridizations (intraspecific and interspecific) were carried out to obtain improved progenies from which trees will be selected. Field trials show good performance of interspecific hybrids (Prat, 1988). The latter should be propagated to confirm their superiority and then be distributed afterwards as selected clones. In vitro micropropagation is applied because of the poor development of cuttings.
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