@article { author = {Ibrahim, Majid and Ali, Abdelminam and Hashem, Mahmood}, title = {In vitro effects of cyanobacteria (Oscillatoria tenuis) extracellular products on date palm (Phoenix dactylifera L. cv. ‘Barhee’) propagation}, journal = {DYSONA - Applied Science}, volume = {2}, number = {1}, pages = {1-7}, year = {2021}, publisher = {E-NAMTILA}, issn = {2708-6283}, eissn = {2708-6283}, doi = {10.30493/das.2020.246624}, abstract = {This study was conducted to investigate the effect of the medium type (half-strength MS medium and MS free medium) and the extracellular products of cyanobacteria (Oscillatoria tenuis) that were grown under photoperiods of 8 or 16 h day-1 on the shoot proliferation and rooting of in vitro ‘Barhee’ date palm ciltures. MS free medium failed to establish half-strength MS medium results, which indicates that the medium could not sustain cultures requirments during shoot proliferation and rooting phase. On the other hand, half-strength MS medium supplemented with extracellular products of O. tenuis grown at 16 h day-1 photoperiod recorded the best results in regards of response to direct organogenesis and rooting.}, keywords = {Date Palm,MS Medium,Oscillatoria tenuis,In vitro}, url = {https://applied.dysona.org/article_117942.html}, eprint = {https://applied.dysona.org/article_117942_2c7d8d87965f2286d5cef250941d3d84.pdf} } @article { author = {Navid, Sorayya and Soufizadeh, Saeid and Jahansuz, Mohammad Reza and Eskandari, Ali}, title = {Gamma radiation influence on germination characteristics of barley}, journal = {DYSONA - Applied Science}, volume = {2}, number = {1}, pages = {8-12}, year = {2021}, publisher = {E-NAMTILA}, issn = {2708-6283}, eissn = {2708-6283}, doi = {10.30493/das.2020.244207}, abstract = {Nuclear irradiation is considered among the practical techniques for improving germination, increasing yield, and enhancing the quality of agricultural products. To investigate the influence of gamma irradiation on germination characteristics of barley, a two-factor factorial experiment was conducted in a completely randomized design. Experimental factors included five barley cultivars (Youssef, Bahman, Makouee, and Behrokh) and radiation (Radiation treatment: gamma radiation with a dose of 200 Gy, Control: no radiation). Indices that were studied included germination rate, coleoptile emergence rate, mean germination time, mean coleoptile emergence time, final germination percentage, final coleoptile emergence percentage, coleoptile length, radicle length, the ratio of coleoptile length to radicle length, radicle dry matter, and coleoptile dry matter. Although germination rate, coleoptile emergence rate, coleoptile length, radicle length, and radicle dry weight of irradiated cultivars decreased compared to the control, the irradiation treatment significantly increased the percentage of final germination (93.58%), coleoptile length to radicle length (2.44), and coleoptile dry weight (0.22 g) compared to control.}, keywords = {Germination,Hordeum vulgare,Gamma rays,Growth indices}, url = {https://applied.dysona.org/article_120802.html}, eprint = {https://applied.dysona.org/article_120802_495aad10e36f98d282e979f7cc1f7ae1.pdf} }