INFLUENCE OF HYDROTHERMAL CONDITIONS ON PRODUCTIVITY OF GARDEN BEAN VARIETIES IN THE FOREST-STEPPE OF THE OB

Abstract

The publication studies relation between duration of organofaction stages, productivity of garden bean (Phaseolus vulgaris L.) and hydrothermal factors in the forest-steppe of the Ob. The research was carried out at experimental farm “Sad Mitchurintsev” in Novosibirsk State Agrarian University. The researchers applied “Nika” green bean variety and “Solnyshko” green bean variety which differed in duration of vegetation. The authors made phenological observations and considered green bean productivity. They studied the varieties on productivity performance, exactly amount of beans on the plant, bean mass from the plant and mass of a bean. The paper estimates the varieties according to duration of specific phenological stages, specifies varieties which provide high crop yield of green beans in the shortest vegetation period. The authors calculate correlation coefficient between phonological stages duration and average daily air temperature; amount of beans on the plant and mass of a bean; beans mass from the plant and crop yield. The article shows the late sowing varieties in adverse environment resulted in high crop yield of high value green beans in 2014. Thus, they supported that cultivating varieties of different ripening period and different sowing period allows minimizing economic risks of crop yield losses. The paper gives recommendations to the farms engaged in cultivating green beans.