Dwarf irises sorting, seasonal development and reproduction in the south of the Novosibirsk region

The purpose of the study was to assess the biology of flowering, reproduction, and decorative qualities in 20 varieties of bearded irises (Irisx hybrida) from the dwarf group in the conditions of the forest-steppe zone of the Novosibirsk Region. It was established that varieties I.x hybrida bloomed at a sum of positive temperatures > 260 °C and