Leaf traits, the rate of gas exchange, and biomass were examined in five plurizonal species (Alisma plantago-aquatica L., Carex acuta L., Eleocharis palustris (L.) Roem. et Schult., Phalaris arundinacea L., and Typha angustifolia L.) of emergent plants growing in wetlands of forest (Middle Urals)...

Female reproductive structures of Umaltolepis are recorded in the Huhteeg (= Khukhtyk or Khukhteeg) Formation (Aptian-Albian) of the Baganuur coal mine (Central Mongolia) for the first time. These structures, preserved as dispersed cupules, are very similar to U. mongoliensis from the Tevshiin Govi ...

This article examines the physiological relationships between fine roots and foliage, and how their biomass ratio correlates with changes in stand quality class. The biomass of fine roots ≤ 3 mm in diameter of spruce stands in the Republic of Karelia (Northwest Russia) was determined by the soil...

In Russia's North Caucasus where drought is frequent the apple tree is one of the most important garden crops. Physiological and biochemical studies are necessary to assess adaptiveness of apple varieties to stressors during summer, in particular, to summer drought. The purpose of this work is to...

Transpiration and stomatal conductance in deciduous needleleaf boreal forests of northern Siberia can be highly sensitive to water stress, permafrost thaw, and atmospheric dryness. Additionally, north-eastern Siberian boreal forests are fire-driven, and larch (Larix spp.) are the sole tree species. ...

Female organs of Umaltolepis are recorded from the Middle Jurassic of East Siberia for the first time. A new species, Umaltolepis irkutensis, sp. nov., is described from the Aalenian-Bajocian Prisayan Formation of the Irkutsk Coal Basin. It is notable for having papillae on some subsidiary cells of ...

Background: Alfalfa (Medicago sativa L.) is one of the most important forage crops, but its seed productivity varies from year to year due to weather conditions. Alfalfa is a forage crop rich in nutrients which makes it valuable. The present 5-year study aimed to identify the promising alfalfa...

Relict species play an important role in understanding the biogeography of intercontinental disjunctions. Pterocarya (a relict genus) is the valuable model taxon for studying the biogeography of East Asian versus southern European/West Asian disjunct patterns. This disjunction has not been as well...

The data on stomatal conductivity of the Siberian spruce needles in bilberry spruce forest and spruce regrowth on a 4-year old clearcut in the middle taiga subzone (62° 17' N 50°40' B) were assessed. The highest transpilration and stomatal clonductivity values of needles were recorded on the...

In this work, a securely dated middle Eocene plant fossil assemblage is described and illustrated. Plant fossils come from the volcanogenic-terrigenous deposits of the Tolstyi Cape Formation and Buyan Formation exposed in the east and south-east parts of the Bering Island, Komandor Islands...