STUDY OF RARE SPECIES ALLIUM OREOPHILUM IN THE SOUTH-URAL BOTANICAL GARDEN-INSTITUTE

The article presents the results of the study of two samples of the rare species Allium orephilum C.A. Mey. The species is of practical interest as a honey and ornamental plant. The purpose of the research was to study biometric parameters, seasonal rhythm of growth and development, seed productivity and breeding features. According to seasonal rhythm of development, A. orephilum is a short-vegetative, summer-green ephemeroid. It blooms in late May-early June, seeds mature in July. Vegetation lasts 2.5–3 months. The duration of flowering is on average 23 days for the Italian sample and 16 days for the Perm sample. In the Italian sample, the number of flowers per generative shoot is on average 24.6 pcs, fruits – 14.9 pcs, real seed productivity is 23.4 seeds, potential seed productivity is 147.8 seeds, productivity coefficient is 15.6 %. In the Perm sample, the number of flowers per shoot is on average 14.9 pcs, the number of fruits – 6.8 pcs, real seed productivity – 11 seeds, potential seed productivity – 88.7 seeds, productivity coefficient – 11.7 %. The number of seeds in the fruits of the studied samples is 1.6 pcs, semenification of the fruits – 26.7 %. Mass of 1000 seeds – 3.4–3.6 g. Soil germination – 40–45 %. In the Perm sample the vegetative reproduction coefficient is 1, in Italian sample – 1.5–2. According to the assessment of introductive resistance in culture, the Italian sample belongs to the group of promising plants (sum of points 15), while the Perm sample – to the group of unpromising ones (sum of points 11).

, , introduction, seasonal rhythm, flowering, seed productivity