Antecology of leymus interior and agropyron repens at Northern Okhotomorye

The role of climatic factors and their participation in regulation of circadian rhythms of flowering at cereals is shown. A daily rhythmicity of flowering and pollination of Leymus interior (Hulten) Tzvelev and Agropyron repens (L.) depending on weather conditions of the coast of Northern Okhotomorye, such as illuminating intensity, temperature and relative humidity of air are researched. The temperature range of flowering of these species in the medium of their growth is established.