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The foliage and bulb healthiness of six narcissus cultivars grown on two commercial plantations near Puławy, was investigated in the years 2007–2009. Among fungal isolates obtained from foliage, species Botrytis narcissicola dominated. Its share ranged at the beginning of flowering from 0.0 to 93.1% and at the end of flowering from 86.4 to 96.3% of all obtained isolates. The diseased plants showed...
W kolekcji narcyzów w Instytucie Sadownictwa i Kwiaciarstwa zgromadzono 140 genotypów. Dużym problemem w uprawie narcyzów jest ich podatność na infekcje wirusowe, w tym często bezobjawowe, o łagodnych objawach i/lub mieszane. Od 2000 roku w celu odnawiania odmian porażonych przez wirusy oraz w celu rozmnożenia obiektów kolekcyjnych o niewielkiej liczebności cebul, używano techniki mikrorozmnażania...
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