Fruchtqualität, wurden die Mineralstoffgehalte in Blättern und Früchten bestimmt. Die Ergebnisse der Untersuchung zeigten, dass sowohl Blätter als auch Früchte einen hohen K-, Ca-, Mg-und P-Gehalt aufwiesen. Es konnte keine signifikante Korrelation zwischen den Fruchtfarben (dunkelviolett und blassgelb) und den Mineralstoffgehalten gefunden werden. Der höchste Mineralstoffgehalt wurde beim Genotyp 11 (mit dunkelvioletten Früchten) in den Blattproben und beim Genotyp 17 (mit blassgelben Früchten) in den Fruchtproben festgestellt.Schlüsselwörter Myrtus communis L. · Myrte · Frucht · Blatt · Mineralstoffe
Seeds of temperate fruit species need a long time to germinate as a result of their requirement of stratification or cold treatment. Therefore, fast and uniform germination techniques are desirable and important for fruit tree propagation and especially for breeding studies. The effects of combinations of benzylaminopurine (BAP) and gibberellic acid (GA3) on in vitro embryo germination of apricot, peach, and wild cherry were determined without seed cold pretreatment. The results showed that no germination was recorded in all the seeds with testa. In the seeds without testa, no germination (wild cherry) or limited germination (less than 10%) was recorded. When the embryos separated from cotyledons were cultured, successful germination was obtained for all species. In general, the addition of different combinations of BAP and GA3 into the Murashige and Skoog (MS) medium significantly increased the germination ratios of embryos without cotyledons in all species. For wild cherry, the best treatment (66.7% germination) was MS media containing 0.5 mg·L−1 BAP + 2.0 mg·L−1 GA3 or 0.5 mg·L−1 BAP + 4.0 mg·L−1 GA3. For peach, the best treatment (86.7% germination) was MS medium supplemented with 0.5 mg·L−1 BAP + 3.0 mg·L−1 GA3. For apricot, the best treatment (93.3%) was MS media containing 0.5 mg·L−1 BAP + 3.0 mg·L−1 GA3, 1.0 mg·L−1 BAP + 1.0 mg·L−1 GA3, or 1.0 mg·L−1 BAP + 2.0 mg·L−1 GA3.
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