Elms (Ulmus sp.) are highly valuable trees for their great strength, tightly twisted grain, and durability, as well as for their cold and salt tolerance[1]. Wych elm (Ulmus glabra, Huds.) is a native species in Europe. In the Czech Republic, it is spread especially in mountain regions. During the years 1970–80, the second epidemic of Dutch elm disease destroyed most elm populations in Europe. T...

Plants propagated by seed do not ensure genetic uniformity and are sometimes infected with diseases. In Vitro micropropagation techniques an alternative method to traditional cloning approaches for producing true-to-type pathogen-free plants. However, due the particularities of in vitro environment, these plants face many challenges, often critical their survival, adapt ex conditions. this cont...

one of the fundamental processes in woody plant propagation especially olive is rooting ability of cuttings. thus the selection of superior trees with desirable genetic structure is essential. adventitious root formation is a key step in rooting ability. therefore, identification of inducible genes in these processes is necessary. in this study, for the first time importin genes were identified...

During in vitro multiplication and rooting of Vriesea splendens ’Fire’, 0.1, 0.2, 0.4 0.8 mg l-1 benzyladenine (BAP), benzyladenine-riboside (BAPR), kinetin (KIN), meta-topoline (MT), indole-butyric acid (IBA) naphthalene-acetic (NAA) were added to basal Murashige Skoog (1962) MS medium. As compared the hormone-free control, plants developed significantly more shoots on medium supplemented with...

A rapid and reliable micropropagation protocol was developed for two sweet potato varieties, Mangawy Mabrokat Al-Shimal, by testing various growth regulators different carbon sources. Healthy cultures were taken from nodal segment explants potted plants. Adding BA more effective than Kinetin when used at the same concentration. The highest number of leaves per explant (5.22 leaves/ explant) lon...

Studies have shown that rooting substrate is one of the effective factors at rooting of hard rhizogenetic plant such as Henna. The purpose of this study is to determine an appropriate concentration of Naphthalene Acetic Acid (NAA), Indole Butyric Acid (IBA) and salicylic acid (SA) on Rooting of Henna. Present study showed that there was a great variation in most of the measured characters at P<...

After about 20 days, hypocotyl cuttings from 20-day-old loblolly pine (Pinus taeda L.) seedlings rooted easily in the presence of the auxin indole-3-butyric acid (IBA), with roots forming directly from xylem parenchyma. In contrast, woody cuttings from 1-2-year-old hedged seedlings formed roots indirectly from callus tissue in 60-90 days, but IBA had little effect on rooting. Variation in rooti...