Reproduction and morphological features of some species of the genus Pear (Pyrus L.), distributed in the flora of Talysh

Summary

The article considers the issues of seed propagation and the study of morphological features of the introduced species Pyrus grossheimii Fed. and P. boissieriana Buhse in the conditions of Absheron. It was found that the optimal sowing time for the studied pear varieties is autumn (OctoberNovember). Depending on the species, with seed stratification in autumn at a temperature of 0.5⁰C for 120 days, the germination rate is 60-75%. The length of the hypocotyl is 11-12 mm, the width is 1.2-1.5 mm, depending on the species. Depending on the species, the cotyledons are 0.2–0.4 cm wide and 0.6–0.9 cm long. The first leaf is 0.4–0.7 cm wide and 0.7–0.9 cm long. The root collar diameter is 0.1–0.2 cm and the main root length is 3.0–4.0 cm. In the studied species, the first leaves appear 5–9 days after germination, the second leaves 10– 15 days later, the third leaves 16–28 days later, the fourth leaves 19–28 days later and the fifth leaves 25–30 days later. It was found that at the end of the vegetation, the height of the first-year shoots of the Grossheim pear variety is 13 cm, while for the relatively short Boisse pear variety it is 7 cm. Based on the research results, reintroduction of the studied species and their cultivation as a promising landscaping assortment and fruit plant on Absheron is recommended.

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