Frank Marthe

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Lemon balm (Melissa officinalis L.) is of increasing importance resulting in rising growth area. Improved knowledge on the genome structure, number of chromosomes in connection with the taxonomical structure of balm is indispensable for improved new varieties. A collection of 40 balm accessions (M. officinalis) was characterized by flow cytometry and FISH(More)
The generation of haploids in lemon balm (Melissa officinalis L.) is the prerequisite for accelerated development of homozygous lines. Wide experiments to induce sporophytic development were arranged. Donor plants of lemon balm were established in a greenhouse, climate chambers and in vitro. For haploid induction, different variations of media and culture(More)
A collection of 220 accessions of parsley (Petroselinum crispum [Mill.] Nyman) was evaluated at two experimental stations (Gatersleben and Quedlinburg, Germany) under natural infection. Widespread origins of tested accessions provide the opportunity for first-time characterization of existence, spreading and level of resistance/susceptibility to the(More)
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